DASM (9.10.2006, 23:08) писал:
MTF передается ?
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Хотелось бы из тушки тогда эту информацию "выудить"
![:)](http://www.penta-club.ru/forum/public/style_emoticons/default/smile.png)
А F серия вообще что-нибудь передает в тушку ? Если 100-ка не будет знать текщее фокусное - придется вводить каждый раз его ручками, если конечно есть желание использовать антитряс.
Ну в оригинале звучало как:
Цитата
...
It is because, starting with the FA series of lens, Pentax has
installed a chip which contains MTF (Modulation Transfer Function), D
Encoder and F Encoder information and new future functions for the next
generation of Pentax SLRs (can't discuss this). Modulation Transfer
Function is really bench tested information entered by our factories of
each individual lens' optical optimum performance at a specific
aperture. This information will then be relayed to a specific camera
body so as to take advantage of the best optical quality of that
particular FA lens at a predefined aperature.. This MTF information
can only be retrieved by the Pentax PZ-1 or Z-1 series of cameras
(Z-1,1p,1se). Other PZ series can not take advantage of the MTF
function, however, the affordable PZ series like the 20, 50P and 70 can
take advantage of the lens' built-in D encoder and F encoder
information.. The D encoder is actually information programmed on the
chip to relay focusing distance information to the PZ body, so the
camera body will use this focusing distance information to dynamically
adjust the multi-metering system to meter at that focusing distance and
not at infinity.. The F encoder information (Focal Length) is used to
transmit focal length information to the camera body and in turn, this
information will be used by the AF-500FTZ or AF-300FTZ to adjust to the
correct focal length for proper flash photography..
...
Pentax Canada Inc, Pentax Online (Vancouver Sales and Tech Support)
|Fidonet: David Poon 1:153/7091
|Internet: David.Poon@miramax.yonet.org
Начинаю понимать ход вашей мысли, важен даже не MTF а D-encoder...
Но в то же время у Дмитриева в схеме для KAF указано:
"D1 — basic lens-body digital transmission: lens focal length, distance to subject, selected f-stop, lens physical size (for calculating whether the lens will interfere with the built-in flash), possibly other information. "
А для KAF2:
"D2 — advanced lens-body digital transmission: MTF, focal length at which the lens has its minimal length, possibly other information"
Вопрос остаётся открытым...