Pentax AF-540FGZ manual

AUT O ZOOM ELECTRONIC FLASH UNIT OPERA TING MANUAL Please read this operating manual carefully first for proper use.[...]

Thank you for p urchasing th e PENT AX Auto-flash AF540FGZ. In addition t o easy dayligh t sync photogra phy with TTL au to, the AF540FGZ al so allows wir eless TTL auto (P-TTL auto) phot ography and h igh-speed sy nc. It is a clip-on ty pe flash wh ich enables a ccurate foc us adjustmen ts even in dark locatio ns with built- in AF-assist spotbeam.[...]

1 FOR THE SAFE USE OF YOUR FLASH UNIT Although we have car efully desi gned this flash u nit for safe operat ion, please be sur e to follow precaut ions given on pag e 2 . WA R N I N G This symbo l indicat es that viol ating this item coul d cause serious pe rsonal inju ries. CAUTION This symbo l indicates that viol ating this i tem could cause min[...]

2 W ARNING The flash contains el ectronic c ircuits that operate at high vol tages . Do not at tempt to disassem ble the fl ash unit yo urself, as there is danger of an el ectric shoc k. If internal p arts of the fla sh unit becomes exposed due t o impact, etc., do no t touch them as there is da nger of an elec tric shock. Do not expose t he flash [...]

3 Precautions for Y our Flash Unit ● Never use orga nic solvents such as paint thinner, alcohol or benzene to cl ean the flash unit. ● Avoid leaving the flash unit for extended period in places where the humidity and temperature are very high such as in a car. ● Be careful not to subjec t the flash unit to stron g vibration s, shock or pr ess[...]

4 ■ Cautions Rega rding Batteries ● This flash unit uses four AA al kaline, lit hium, or nick el metal hydride bat teries. Do not us e any other typ e of battery . The flash unit may not be able to op erate correctl y or demonstr ate sufficient perfo rmance, or the flash unit itself may ge nerate heat, de pending on the type of batteries used. [...]

5 Content s FOR THE SAFE USE OF YOUR FLASH UNIT ................................................................. 1 Precautions for Your Flash Unit ....................... 3 Cautions Reg arding Batt eries ............. ................ 4 Names of Parts .......................................... ......... 6 Major bundled items .................... .[...]

6 Names of Part s  Bounce angle adjustment  LCD panel  Flash mode butto n  Select butt on  Adjustment dial  LCD panel illuminatio n button/ Format button  Zoom button/ Channel butto n  T e st button/ Mode ling button / Ready lamp  Setting switch  Power switch  Wireless mode butto n @ Sync mode s witch > Bounce lo[...]

7           @  > S Y G T V[...]

8 [ 5P Sync socket W External po wer source sock et K Socket co ver Q Slave sensor R Wide-angle panel " Catchlight panel = Flash head C AF spotbeam emi tter U Auto flash se nsor " R = C U W [ Q K[...]

9 ■ Major bundled items  St a n d Slide the hot shoe bracket i nto the openi ng of the stand. ● Y ou cannot attach the off-came ra shoe adapter F to the bundled stand. ● When attaching the fl ash unit to th e stand, do not tighten the locking lever too f ar . Tightening t oo far may cau se the lockin g lever to not lock sufficientl y when [...]

10 ■ LCD Panel Indicator  Zoom indicator : A.Zoom ➝ M.Zoom xxmm = 20, 24, 28 , 35, 50, 70, 85 (3 5 mm format) 35, 45, 55, 70, 100, 135, 15 0 (645 format) 55, 60, 70, 90, 120, 180, 19 0 (67 format) 13, 16, 19, 24 , 34, 48, 58 (DIGIT AL ca mera (K series, *ist D series)) 25, 30, 35, 43, 62, 87, 106 ( 645D)  Format indi cator : 35mm ➝ 645 [...]

11 When in poorly l it locations and the LCD panel canno t be seen, pres sing the LCD p anel illumination button (LIGHT) will illuminate the p anel for about 10 se conds. Pressing it again wi ll turn of f the illumination. ● The camera's LCD panel lights up also when you press the LCD illumination button (LIGHT) and the exp osure meteri ng t[...]

12 Inserting the Batteries Slide the batte ry chamber co ver as shown in the figure to open. Insert four AA batteri es, making sur e the plus/ minus markings ( + , - ) match the diagra m inside the ba ttery chamber cover .   1 2[...]

13 T ypes of Batt eries This flash un it uses four AA batt eries of the same type, as shown below . - Alkaline batt ery (LR6) - Lithium battery (FR6) - Nickel- Metal Hydride batte ry (Ni-MH) (Nickel mangane se (Ni-Mn) and nick el cadmium (Ni- Cd) batteri es cannot be us ed.) ● For information about recycling times and total number of flas hes, re[...]

14 Mounting to Camera Remove the hot shoe cover from the camer a. Attach the flash unit to th e camera.  Turn the locking leve r of the flas h unit in the directio n opposite to that indica ted by (FIX ➝ ) (clockwise fr om the direc tion of the LCD panel).  Slide the hot shoe fo ot of the f lash unit i nto the camera's ho t shoe from t[...]

15 T urning the Power On Sliding the power switch to the (ON) p osition will tu rn on the power . The rea dy lamp will light up when the flash is cha rged. Slidi ng it to th e (OFF) posi tion will turn off the power . If charging time takes more than 20 se conds, the batteries ha ve been exhausted and should be replaced with new batteries. If the f[...]

16 ■ Charging the AF540FGZ with the Optional Extern al Power Source Prepare the externa l power source TR Power Pack-3 in acco rdance with t he instructio n in the operating man ual. Confirm that th e power switch of t he flash unit and TR Power Pack -3 is turned to OFF . Then, plug the power cord into the external po wer socket on the f lash uni[...]

17 ■ Auto Power Off Functi on When the flash unit is left unused for about 3 minutes with the power switch set to the (O N) position, it automatically switches of f to save the power . Slide the s etting switc h up. Press the L CD panel illumination b utton (LIGHT) for 2 second s or more. SL 1 or SL 2 will be displayed. Press the f lash mode butt[...]

18 Select Button (S)/Adju stment Dial Functions 4 types of settings are availa ble as sh own on the following page s for the se lect butt on (S) and the adjustme nt dial. ■ Procedure Press the s elect button (S ) so that the nu mber to adjust is blinking. T urn the adjustment di al and ad just the blinking number .  1  2[...]

19 After adju stment, pres s the select butto n (S) and stop the bl inking. Adjust the o ther item s below using the sa me procedure. ● When using multiple flas h units set to P-TTL or TTL Auto and adjusting the amount of light at th e same time, use the camer a ’ s exposure compensation .  3 Connected Flash Mod e Adjustment Range Flash outp[...]

20 Camera Forma t and Flash Co verage Angle The AF540FGZ ’s flash coverage an gle can be adj usted to match the an gle of view of the lens being use d, which enab les effective dist ribution of the flash ligh t. The flash cov erage angle is indicated b y the focal lengths of av ailable le nses in the LC D pane l of the flash unit, accordi ng to t[...]

21 ■ Zoom position (Flash cover age angle) settin g Next, set t he zoom (fla sh coverage ang le) to match the fo cal length of th e lens you are us ing. ■ Auto Zoom (A.Z oom) If both t he camera and l ens are autofocus, you can automatical ly set the fl ash coverage angle accordi ng to the focal le ngth of the l ens by pressing t he shutter rel[...]

22 ● In the manu al zoom mode , refer to th e LCD p anel and set it so the f lash coverage angle matches the lens focal length or set a flas h coverage angle that is shorter tha n the lens f ocal length. Zoom Positions for Each Forma t * With the wide-a ngle panel ● When the wide-a ngle p anel is used, the zoom button (ZOOM) will not work. (The[...]

23 35mm Camera 645 Camera 67 Camera Digital Camera (K series, *ist D series) Digital Camera (645D)[...]

24 ● In the (A.Zo om) mode, the flas h coverage angl e will be adjust ed automatica lly to suit the lens focal length when you press th e shutter releas e button halfway , and the camera expos ure metering timer is on. ● A warning signal appears as follow s when the flash cannot co ver the foca l length of t he camera. - The zoom ind icator bli[...]

25 Using the Flash Modes The AF540FGZ has t he following fla sh modes. Select the mode b est suited f or the subj ect. Before ph otographin g, confir m the followi ng. 1. Wh ether your camera su pports the desired flash mode. ➝ Cameras that Support Each Flash Mode (pa ge 60) 2. Wh ether you can use t he desired functi on with the combinati on of [...]

26 ■ P-TTL Auto Flash Refer to p age 25 for th e features and condi tions of use of this flas h mode. Procedure T urn on the flas h unit. Press the fla sh mode button (MODE) until (P-TTL) is dis played on the LC D panel. Set the sync mode switch to lead ing curtain sync ( ), trailing curt ain sync ( ), or contrast- control ( ), according to the s[...]

27 ■ TTL Auto Flash Refer to page 25 for the fe atures and conditions of use of this flas h mode. Procedure T urn on t he flash un it. Press the flash mode b utton (M ODE) until (TTL) is displaye d on the LCD p anel. Set the sync mo de switch to leading cu rtain sync ( ), trailing curtain sync ( ), or contras t-control ( ), accordin g to the subj[...]

28 ■ Auto Flash Refer to p age 25 for th e features and condi tions of use of this flas h mode.     [...]

29 Procedure T urn on the power sw itch. Press the f lash mode button (MOD E) until (A ) is displayed o n the LCD panel. Set the aper ture value an d ISO.  Press the select butto n (S) so th at (f/sto p) on the LCD pan el blinks.  T urn the ad justment d ial to set the apertu re value. ● The effectiv e flash range i s displayed on the LCD p[...]

30 ■ Manual Flash Refer to p age 25 for th e features and condi tions of use of this flas h mode. Procedure T urn on the power switch. Press the flash mode button (MO DE) to dis play (M) (1/xx) on the L CD panel. ● Y ou can set the flash out put from 1/1 to 1/64. See pa ge 1 8 . Set the zoom posi tion. (The set ting method differs according t o[...]

31 Confirm that the subjec t is within the effec tive flash ran ge and the r eady lamp is lit. Then take a picture. ● In the foll owing cameras, if the c orrect flash output is obtained, th e flash mode indicator and ( ) in the viewfinder will blink. 645, LX, MZ- M/ZX-M For det ails, refer to “Auto Check Di splay” o n pag e 11. 5[...]

32 Using the Sy nc Mode The AF540F GZ has th e followi ng sync mod es. Select the mode best suit ed for the subject . Before pho tographing , confirm t he follo wing. 1. Whet her your camera supports the desired sync mode. ➝ Cameras that Suppo rt Each Sync Mode (page 62) 2. Whether you ca n use the des ired sync mod e with the combinat ion of you[...]

33 ■ Leading Curt ain Sync Mode Refer to page 32 for the fe atures and conditions of use of this sync mod e. Procedure Set the power s witch to the (ON) position. Set the sync mode switch t o leading curtai n sync () . Confirm that the subjec t is within the effec tive flash ran ge and the r eady lamp is lit. Then take a picture. ■ T railing Cu[...]

34 ■ High-Speed Sync Mode Refer to p age 32 for th e features and condi tions of use of this sync mode . ● As can be seen in the table on page 84, as the shutter speed become s faster , th e guide number becomes smaller . Accordingly , it should be noted that the di stance for taking pictures would become shorter. Procedure T urn on the c amera[...]

35 Check the f lash range b y looking a t the bar grap h on the LCD panel . Confirm that the subjec t is within the effec tive flash ran ge and the r eady lamp is lit. Then take a picture. ● Please read th e camera opera ting manual for camera operat ion. ● High-spe ed sync is possib le with the camer a separated (wireles s) from the AF54 0GZ. [...]

36 ■ Contrast Control Sync Flash Refer to p age 32 for th e features and condi tions of use of this sync mode . ● Refer to “Connec ting the AF540FGZ with the Extension Cord” on page 59 on using the AF540FGZ det ached fr om the ca mera. Procedure T urn on the power switch. Set the sync mode switch to cont rast-contro l () . Set the zoom posi[...]

37 With a si ngle flash ● If you are using a single flash unit, you c an only perform le ading curt ain sync photo graphy wh en the sync mode switch is set to contrast-control () . With contrast control sync flash[...]

38 Advanced Functions ■ Wireless Mode With the AF540 FGZ, you can take photog raphs with the flash uni t separ ated from the c amera wirelessl y in P-TTL mode. Combine the fl ash unit with t he built-in fl ash unit of the camera or anot her AF540FGZ attached to the camera. ● The AF360FGZ can be used intercha ngeably with AF540FGZ flash un its f[...]

39 ● Control Flash an d Main Flash The purpose of the control f lash of the wireless mode is to send information to the other flash unit before taking a picture. The main fla sh discharge s at the actual ti me a pict ure is t aken in the same manne r as traditio nally done. ● When setting up a flash unit separately from the camera, use t he off[...]

40 ● The AF540FGZ ca n be used in combinati on with a built-in flash unit only when us ed with the following c ameras. *ist D, *ist, MZ- S, MZ-L /ZX-L/MZ-6, K10D (NOTE), K20D, K200D, K-x, K- 7, K-m/K2000 (NOTE) However, this requires the fir mware to be updat ed to V ersion 1.10 or later. Download the firmwa re for the K10D fr om the follo wing U[...]

41 Firstly , set the wireles s mode and channel of the AF540FGZ, and regist er them on the camer a.  Turn the camera off and then attach th e AF540FGZ to the hot shoe of the camera.  Set the power switch of the f lash unit to (WIRELESS) .  Press the wi reless mode button (M/C/S ) the number of t imes requir ed to displa y SLA VE on the LCD[...]

42 (Prepar ation of Flash Unit Att ached to Camera) Firstly , se t the wireles s mode and channe l of the flash unit a ttached to the camera , and registe r them on the camer a.  Attach the AF540FGZ to the hot sh oe of the camera af ter turning the camera off.  Set the power switch of the flash unit to (WIRELESS) .  Press the wireless mode[...]

43  When you turn th e camera on and pr ess the shutter re lease butto n halfway down, the channel o f the flash unit is register ed on the camera. (Prep aration of Sep arated Flash Un it) Next, set th e channel of t he separated (wir eless) flash unit to the same chan nel as the fla sh unit attache d to the camera.  Place the other AF540FGZ [...]

44 (Prepar ation of Flash Unit Att ached to Camera) Firstly , se t the wireles s mode and channe l of the flash unit a ttached to the camera , and registe r them on the camer a.  Attach the AF540FGZ to the hot sh oe of the camera af ter turning the camera off.  Set the power switch of the flash unit to (WIRELESS) .  Press the wireless mode[...]

45  Slide the set ting switch back up to th e (white dot).  When you turn th e camera on and pr ess the shutter re lease butto n halfway down, the channel o f the flash unit is register ed on the camera. (Prep aration of Sep arated Flash Un it) Next, set th e channel of t he separated (wir eless) flash unit to the same chan nel as the fla sh [...]

46 (Using the AF540FGZ in Combination w ith a Built-in Flash Unit) Firstly , se t the wireles s mode and channe l of the AF540FGZ, and re gister them on th e camera.  Turn the camera off and then attach th e AF540FGZ to the hot shoe of the camera.  Set the power switch of the flash unit to (WIRELESS).  Press t he wirele ss mode but ton (M/[...]

47  When you turn t he camera on and pres s the shutter re lease butto n halfway down, the channel is r egistered on the camera. Next, remove the flash unit from th e camera an d place it in the desired p osition. ● Press the flash mode button (MOD E) to displa y (P-TTL) if th e flash mode was set to the modes other than P- TTL. Set the zoo m [...]

48 (Using the AF540FGZ in Combinatio n with another AF540FGZ) Firstly , se t the wireles s mode and channe l of the AF540FGZ attached to t he camera, and regi ster the channel on the camera.  Turn the camera off and then attach th e AF540FGZ to the hot shoe of the camera.  Set the power switch of the flash unit to (WIRELESS).  Press the wi[...]

49  Slide the set ting switch back up to th e (white dot).  When you turn t he camera on and pres s the shutter re lease butto n halfway down, the channel is r egistered on the camera. Next, set t he channel of t he separated (wirel ess) flash unit to the same chan nel as the f lash unit attache d to the camera.  Place the other AF54 0FGZ [...]

50 ■ Slave With the AF540 FGZ, you can take photog raphs with the flash uni t separ ated from the c amera wirelessl y in auto or manual mode . Combine the fl ash unit with t he built-in fl ash unit of the camera or ano ther flash unit attached to th e camera. Before pho tographing , confirm t he follo wing. 1. Whet her you can use this func tion [...]

51 Set the zoom po sition to sui t the subjec t and place the f lash unit at the desi red location. ● When setting up a flash unit s eparately from the camera, use t he off-camera sho e adapter F when using a tripod, or the off- camera shoe clip CL-10 when setting up in another location such as tabletop, chair , etc. Turn the flash unit on th e c[...]

52 ■ Slave Mode Setting T o properly control th e slave fl ash, it is necessary to set the slave mode se ttings. Procedure Slide the set ting switch up. Press the LCD p anel illumin ation butt on (LIGHT) for 2 seconds or more. SL1 will be displayed. Press the sele ct button (S ) to select SL 1 or SL 2. ● The flash wi ll not discha rge proper ly[...]

53 ■ Slow-Speed Sync Photography When using a nor mal flash t o photograph a subject in a night or even ing setting , the backg round will ap pear very dark beca use a normal fl ash light can not suffi ciently light it . However , it is possi ble to balanc e both subject and backgro und by using th e flash to properly exp ose the for eground subj[...]

54 ■ Bounce Flash With the AF 540FGZ, you can tilt and swivel the flash head to ai m at the ce iling or wa ll to bounc e the flas h before it re aches the subj ect. Doing so creates softer light and shado ws to make the pict ure look more natural. Bou ncing the f lash will decr ease the fl ash intensity b y the time it reaches the subjec t. There[...]

55 ● A click stop is provid ed for each bounce angle. ● Hold the bounce lock relea se button and tilt the flash head dow nward when you set the bou nce angle at -10 ° . ● When using bounce fl ash, ( ) will be dis played on the LC D p anel. ● The effective flash range will blink only when the bounce angle is set a t -10 ° . ● It is recom[...]

56 ■ AF Spotbea m The AF540FGZ fea tures a built-i n red spotbeam projector to assist th e autofocu s system in d im light an d low-contra st conditi ons. When usi ng the fl ash with autofocus camera in dark conditions, the spotbeam w ill be projecte d automatica lly dependi ng on the ambient lighting cond itions. This fun ction is activa ted onl[...]

57 ■ Wide-Ang le Pane l and Catc hlight Panel The AF540 FGZ has a built-in wi de-angle panel and catchlight panel at the top of th e flash head . Execute t he followin g if necess ary . Pull out both the wid e-angle panel and catchlig ht panel. S tore the panel you ar e not using. . ● When storing the wide-angle panel, push it inward while hold[...]

58 ■ Modeling Flash/T est Flash Before t aking t he picture, firing a modeling flas h help s you to see how sha dows are cas t on the subject. Modeling Fl ash Slide the setting sw itch down ( yellow dot). Check th at the fla sh is ready , then press the modeling b utton (MOD ELING). T he flash w ill discharge co ntinuously for one seco nd. After [...]

59 ■ Connecting the AF540FGZ with the Extension Cord When using the AF 540FGZ separately from the camera connect ed by an exte nsion cord, use the optional ex tension cord F5P/F5P L. At tach the extension co rd F5P/F5P L t o the camera usi ng the optional ho t shoe adapter F G or the optional hot sho e adapter F (ref er to the diagr am on the rig[...]

60 Supported Functions fo r PENT AX Cameras ■ Cameras that Support Eac h Flash Mode Cameras that supp ort each of th e flash modes are l isted below . Please not e that fun ctions rela ted to each flash mode differ . Ref er to "Fun ctions Rela ted to Eac h Flash Mode" (page 64 - 71). Flash Mode Camera Notes P-TTL Auto Flash (P-TTL) 645D[...]

61 TTL Auto Flash (TTL) 67 2 - In tra iling curtain syn c or contrast control sync mode, the flash mod e will automatica lly be swit ched to (T TL) when y ou press t he shutter release bu tton halfwa y down, ev en if you have set i t to manua l (M). 645N 2 , 645N, Z/PZ series, MZ/ZX series (exc ept MZ-M/ ZX-M), SFX N /SF1 N , SFX/SF 1 - When the ex[...]

62 ■ Cameras that Support Each Sync Mod e Cameras that s upport each of th e sync modes are l isted below . Please no te that th e condition s under which they can be us ed dif fer dep ending on camera type and setti ngs. For details, refe r to the restr ictions re ference pages. Sync Mode Camera Restrictions Reference Page Leading curtai n sync [...]

63 ■ Cameras that Support W ireless Mode (NOTE) For th e K10D, the firm ware must be upda ted to V e rsion 1.10 or later (page 40). Y ou can use the sla ve flash ins tead, if your camera does not support wireless mode . In this ca se, the availa ble flash modes are auto and ma nual (p age 50). High-speed sy nc ( ) Digital single le ns reflex came[...]

64 ■ Cameras that Support Slo w-Speed Sync Mode ■ Functions Related to Each Flas h Mode Supported f lash modes and sync modes differ for each came ra model. Refer to the f ollowing table. ( N : usable, O : u sable under ce rtain conditions , X: unusable , -: Flash mode not supported) * Where the fla sh mode is set to SB (A F spotbeam), t he fla[...]

65 1. Cameras that Support P-TTL Auto Flash Mode * 1 : Depending on the typ e of camera, if Exposure Meteri ng is switched on, the flas h mode switches to [ P-TTL] or [TTL]. For detai ls, see page 60. * 2 : *ist D, K10D (the fi rmware must be upd ated to V ersion 1.10 or later) T ype A (Digit al single lens reflex cameras): 645D, K-x, K-7, K-m/K200[...]

66 2. Cameras that Support TT L Auto Flash Mode <Film cameras ( 35mm autofocu s single le ns reflex ca meras)> * 1 : Only when combin ed with cameras pro vided with red- eye reduction. (Excluding the MZ-5N, Z-1P , and Z-5P .) * 2 : Only when the AF540FG Z is det ached from th e camera and connecte d by an extensi on cord. (E xcluding the MZ-3[...]

67 <Film cameras ( medium format)> T ype D: 67 2 T ype E: 645 N 2 , 645 N T ype F: 645 Flash Mode (P-TTL) P-TTL aut o flash photography (TTL) TTL auto flash photography (A) auto flash photography (M) manual flash photography (SB) A F spotbeam Camera type (D), (E), (F) (D) (E) (F) (D) (E) (F) (D) (E) (F) (D) (E) (F) Leading c urtain sync - NNN[...]

68 <Film cameras (3 5mm manual focus si ngle lens refle x cameras)> T ype G: LX T ype H: Super A/Sup er Program Flash Mode (P-TTL) P-TT L auto flash photography (TTL) TTL auto flash photograph y (A) auto f lash photography (M) manual flash photography (SB) AF spotbeam Camera type (G), (H ) (G) (H) (G) (H) (G) (H) (G), (H) Leading curt ain syn[...]

69 3. Cameras that Does not Support P-TT L and TTL Auto Flash Mode <Film cameras ( 35mm autofocu s single l ens reflex ca meras)> T ype A: SF7/SF10 Flash Mode (P-TTL) P-TTL auto flash photography (TTL) TTL auto flash photograph y (A) auto flash photography (M) manual fl ash photography (SB) AF spotbeam Camera ty pe (A) (A) (A) (A) (A) Leading[...]

70 <Film cameras (3 5mm manual focus si ngle lens refle x camera, 67 camera)> * 1 : Slow-speed syn c with B (Bulb Expo sure) for the A3Date and A3Dat eS. * 2 : Except ME . T ype B: MZ-M/ZX-M T ype C : P30 T , P30 N/P3N, P30, P50 /P5, A3Date, A3Da teS, Program A/Prog ram Plus T ype D: ME, ME-Super , MG , ME-F/MEF , MV1/MV Flash Mode (P-TTL) P-[...]

71 T ype E: 35mm single r eflex cameras other than those in T ype A to D, 67 camera Flash Mode (P-TTL) P-TTL auto flash photography (TTL) TTL auto flash photograph y (A) auto flash photography (M) manual fl ash photography (SB) AF spotbeam Camera ty pe (E ) (E) (E) (E) (E) Leading c urtain sync - - NN - Trailing curtain sync - - X X - Slow-speed s [...]

72 ■ Sync Mode Restrictions Leading Curtain Sync Photography ( ) This sync mode ca n be used with all PENT AX single lens reflex camer as provided wit h a hot shoe. Howeve r , ther e are restric tions depe nding on camera type and settin gs. T railing Curt ain Sync Photography ( ) Cameras that s upport this syn c mode are as foll ows. The shutter[...]

73 *1: The minimum s hutter speed var ies dependin g on the focal len gth of the lens y ou are using. *2: The minimum s hutter speed var ies depending on ambient light . ● Under the fo llowing c ondition, the flash mode automatically switche s to P-TTL auto flash: the flash mod e is set to manual flas h (M), and th e sync mode is se t to trailin [...]

74 Contrast Control Sync Photograph y ( ) Flash units that su pport this sy nc mode are as foll ows. However , the flash modes, came ras, and camer a shutter speeds that can be used differ dependi ng on the fl ash unit. Set the shutt er speed to th e speed shown in the shutter sp eed column be low . Flash Unit Flash Mode Camera Model AF540FGZ, AF36[...]

75 *1: The minimum s hutter speed var ies dependin g on the focal len gth of the lens y ou are using. *2: The minimum s hutter speed var ies depending on ambient light . ● The flash mode automat ically switches to P-TTL auto unde r the following condition: When the flash mode is set to manual fl ash (M), and the sy nc mode is set to contr ast con[...]

76 High-Spe ed Sync Mode Photography ( ) Cameras that support th is sync mode are as fol lows. Be sure t o set your camera acco rding to the following settings: - Shutt er speed: faster tha n flash unit 's X-sync spee d - Exposure mode: Tv (Shutter Priority), Av (A perture Pr iority), M (ma nual) Exposure mode s other than th e above are not c[...]

77 Slow-Sp eed Sync P hotography Restrictions Be sure t o set the came ra as foll ows. Y ou cannot perform sl ow-speed sync photography wit h settings ot her than B (Bul b Exposure) with the followi ng cameras: - Cameras that are not ca pable of setting th e shutter spe ed slower than the flash X-sy nc speed - Cameras in which the shu tter speed is[...]

78 645D, K-7, K20 D, K10D, *ist D Green (exc ept 645D) , Hyper Program (wh en programmed AE is ac tivated), Av (Apertur e Priority ) modes and Sv (ex cept *ist D) Y ou ca n perform slow-s peed sync photograph y using the fo llowing method when the camera is in Hyper Program mode. - Set the camera u sing the Av dia l or Tv dial so that the shut ter [...]

79 ■ Precautions Wh en Photographing with a Slave Flas h ● Be sure to set t he camera as follows : - Exposure mo de: M (manual) or B (Bulb Exposur e) * Exposure mode s other than t hose above are no t compatible with thi s photographi c method. ● Set the slave mode of the flash un it to SL 2 (ref er to page 52). Z-20P , Z- 70P , Z-20/ PZ-20 G[...]

80 Flash Effective Range ■ Calculating the Flash Effect ive Range When setti ng the le ns to manu al f/sto p, calculat e the guide number a t full flash wi th the use of fl ash's zoom position an d ISO. Di vide the r esulting g uide number by the apertu re in use. Th us, the maximu m distan ce is obtained. The minimum di stance is obtained i[...]

81 The shoo ting dist ance parameters w ill be dis played on the LCD p anel. Make s ure that you are wi thin the f lash eff ective rang e before taking pictures . ● The effecti ve flash range i s displayed fo r the following camera a nd lens combin ations. If the maximum di stance exceeds 22 meters, ( ) will blink. If the minimum dist ance is 0.7[...]

82 ■ Guide Number (GN) Guide numbe rs indicate fl ash light in tensity . The larger the number, the farther you can reac h with your flas h. From the guide nu mber , you can easily ob tain the proper apert ure settin g required fo r an optimum exposure. ● Depending on the cam era and lens you are using, the effective flash range m ay be display[...]

83 *With the wi de-angle panel attac hed ISO Flash light intensity Camera format Zoom position 35mm 85mm 70mm 50mm 35mm 28mm 24mm *20mm 645 150mm 135mm 100mm 70mm 55mm 45mm *35mm 67 190m m 180mm 120mm 90mm 70mm 60mm *55mm DIGIT AL 58mm 48m m 34mm 24mm 19mm 16mm *13mm 645D 106mm 87m m 62mm 43mm 35mm 30mm *25mm ISO200 1 / 1 7 67 16 45 5 4 94 53 0 1 /[...]

84 High-Speed Syn c Guide Number *With the wide -angle panel attached ISO Shutter speed Camera format Zoom posi tion 35mm 85mm 70mm 50mm 35mm 28mm 24mm *20 mm DIGIT AL 58mm 48mm 34mm 24mm 19mm 16mm *13 mm 645D 106mm 87mm 62mm 43mm 35mm 30mm *25 mm ISO100 250 24.2 22.4 20 .1 17.5 15.7 14. 3 9.4 500 18.8 1 7.4 15.6 13.6 12 .2 1 1.1 7 .3 1000 14 13 1 [...]

85 ■ P-TTL and TTL Auto Flash Ef fective Range (Unit: m) Camera format Zoom po sition ISO 100 ISO 200 35mm 20mm 24mm 28mm 35mm 50mm 70mm 85mm 20mm 24m m 28mm 35mm 50mm 70m m 85mm 645 35m m 45mm 55mm 70mm 100mm 135mm 150 mm 35mm 45mm 55mm 70mm 100mm 135mm 150mm 67 55mm 60mm 70mm 90mm 120mm 180mm 190m m 55mm 60mm 70mm 90mm 120mm 180m m 190mm DIGIT [...]

86 (Unit: m) Camera format Zoom position ISO 400 35mm 20mm 24 mm 28mm 35mm 50m m 70mm 85mm 645 35 mm 45mm 55mm 70m m 100mm 135mm 150mm 67 55mm 60mm 70m m 90mm 120m m 180 mm 190m m DIGIT AL 13mm 16mm 19mm 24mm 34mm 4 8mm 58mm 645D 2 5mm 30mm 35mm 43 mm 62mm 87mm 106mm f/stop f/1.2 3.5 - 35.0 5.4 - 53.3 5.9 - 58.3 6.5 - 65.0 7.5 - 75.0 8.4 - 83.3 9.0[...]

87 Optional Accessories A number of dedi cated accesso ries are avail able for thi s flash unit. TR Power Pack-3 External power sour ce which s upplies power from s ix C-size ba tteries. Off-camera Shoe Clip CL-10 Setting clip fo r using the AF540FGZ as a wireless sla ve flash. Hot Shoe Adapter F G Adapter f or using th e AF540FG Z as a sep arate f[...]

88 Specifications Ty p e Clip-on, TTL auto zoom flash unit with series control Guide No. (ISO 100) (ISO 200) Maximum 5 4 (ISO 100/m) . In manual mode, seve n-step adjus tment from M1/1 to M1/6 4. The focal leng ths in the table be low are for 35 mm si ngle lens refl ex cameras. (w hen using 35m m format cam era) *Wide-angle p anel us ed Focal Leng [...]

89 (ISO 400) Flash duration (1/2 pe ak each) (M1/1) flash: Approx. 1/1 200 sec. (TTL) Fastest duration time: Appr ox. 1/20000 sec. Recycling time/T ot al number of fl ashes Consecutive Discharge Approx. 2 frames/sec. for 50 times, at M 1/16 output (with using AA alkaline LR-6 batter ies) Flash Coverage Angle Auto zoom enabled with autofocus compati[...]

90 Flash modes P-TTL auto, TTL auto, auto, manual. Flash output compen sation In P-TTL mode, -3.0 t o +1.0 leve ls (0.5 step incremen ts) Flash output setting Wireless master , slave: (1/1 ➝ 2/3 ➝ 1/2 ➝ 1/3) Manual: (1/1 ➝ 1/2 ➝ 1/4 ➝ 1/8 ➝ 1/16 ➝ 1/32 ➝ 1/64) Flash sync mode Leading curtain sync, Trailin g curtain sync, Contrast [...]

91 W arranty Policy All PENT AX camera accessories purchased through authori zed bona fide photographi c distribution channels are guarant eed against defect s of material or workmanship for a period of twelve months from date of purchase. Service will be render ed, and defective p arts wi ll be replaced without cost to you within t hat period, pro[...]

92 This warranty policy does not affect customer’s statutory rig hts. The local warranty policies availabl e from PENT AX distributo rs in some countries can s upersede th is warranty policy . Therefore, we recommend th at you review the warranty card s upplied with your product at the time of purchase, or cont act the PENT AX distributor in your[...]

93 Information for Users on Collection and Di sposal of Old Equipment and Used Batteries Used electrical/electronic equipme nts and batteries must be treated separ ately and in accordance with legisla tion that requires proper treatme nt, recovery and recycling of these products. Following the implementat ion by member states, private households wi[...]

HOY A CORPORA TION PENT AX Imaging Systems Division 2-35-7, Maen o-cho, Itabashi-ku, T okyo 174-8639, JAP AN (http://www .pentax.jp ) PENT AX Europe Imaging Systems S.A.S. 1 12 Quai de Bezons, B.P . 204, 95106 Argenteuil Cedex, FRANCE (European Headquarters) (HQ - http://www.pentaxeurope. com) (France - http://www .pentax.fr) PENT AX Imaging System[...]