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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Hasselblad FE 2.8/300 Sa, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Hasselblad FE 2.8/300 Sa one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of Hasselblad FE 2.8/300 Sa. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of Hasselblad FE 2.8/300 Sa should contain:
- informations concerning technical data of Hasselblad FE 2.8/300 Sa
- name of the manufacturer and a year of construction of the Hasselblad FE 2.8/300 Sa item
- rules of operation, control and maintenance of the Hasselblad FE 2.8/300 Sa item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Hasselblad FE 2.8/300 Sa alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Hasselblad FE 2.8/300 Sa, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Hasselblad service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Hasselblad FE 2.8/300 Sa.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Hasselblad FE 2.8/300 Sa item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
LENSES www .hasselblad.com 1/2 Document ID: 3021003/0610 CLOSE FOCUS RANGE DA T A: Minimum distance object to film 2.50 m Corresponding distance object to front lens 2.20 m Maximum image scale 1: 6.9 Corresponding area of coverage 38 x 38 cm Corresponding exposure reduction 0 f-stop TELE-SUPERACHR OMA T FE 2.8/300 Sa 1 00 80 60 40 20 0 0 10 20 30 [...]
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Page 2
T o convert meter s into feet, multiply by 3.281. T o convert meter s into inches, multiply by 39.37 LENSES www .hasselblad.com 2/2 Document ID: 3021003/0610 Depth-of-field in meters f/2.8 f/5.6 f/11 f/22 ∞ 500 - ∞ 260 - ∞ 130 - ∞ 65 - ∞ 100 85 - 125 70 - 160 60 - 400 40 - ∞ 50 45 - 55 42 - 62 37 - 80 30 - 200 30 28.5 - 31.7 27 - 34 25[...]
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Page 3
LENSES www .hasselblad.com 3/2 Document ID: 3021003/0610 CLOSE FOCUS RANGE DA T A: Minimum distance object to film 2.50 m Corresponding distance object to front lens 2.20 m Maximum image scale 1: 4 Corresponding area of coverage 22 x 22 cm Corresponding exposure reduction 0 f-stop TELE-SUPERACHR OMA T FE 2.8/300 Sa + APO-MUT AR 1.7XE 1 00 80 60 40[...]
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Page 4
T o convert meter s into feet, multiply by 3.281. T o conver t meters into inches, multiply b y 39.37 LENSES www .hasselblad.com 4/2 Document ID: 3021003/0610 Depth-of-field in meters f/2.8 f/5.6 f/11 f/22 ∞ 900 - ∞ 460 - ∞ 230 - ∞ 115 - ∞ 100 90 - 112 82 - 130 70 - 180 55 - 800 50 47.5 - 53 45 - 56 41 - 65 35 - 90 30 29 - 31 28.2 - 32 2[...]