On Mar 3, 2006, at 11:42 PM, K.Takeshita wrote:
My initial post on this, which was based on the post by a Pentax lens
designer in Japan explicitly said that Pentax either give the
optical design
to Tokina or vice versa, but there is NO joint development of the
spec.
Component wise, either one packages other's optical design. Tokina's
statement is somewhat confusing to me, but they are also clear that
this is
not an OEM arrangement. So far, I do not think any optical specs were
"jointly" developed. It appears that they take either design. But
I can
confirm it later.
Thanks Ken :-) I think we got too many various sometimes misleading
informations related to Pentax future that it is often tough to
identify who what when how, especially that most of interesting info
is in Japanese and most of us don't speak it (I think the main
problem isn't language by itself but rather your alphabet - while
beautiful visually - difficult to understand by Western cultures -
thankfully some of us can read Cyryllic and texts in Russian ;-)
Anyway it is good to have you here :-)
I never said that DFA Macros were developed by Tokina. They were
developed
by Pentax, but FA Macros were so expensive to make and Pentax were
losing
money for each of those sold. I posted this info some months ago.
Their solution was to give the lens optical spec to Tokina, and
Tokina in
turn packaged it to produce the more competitive products while
keeping the
same performance (thus the change from metal barrel to plastic, for
one
thing? :-).
Sorry, its friday and I'm too tired after week :-) You are right, you
were writing that optical formulation was designed by Pentax
(including exclusive FREE). Anyway DFA 100 macro is really much
cheaper than older FA version at least here in Europe - it is now
cheaper than Nikon's and Minolta's equivalents but still at the same
price leevel as Canon's (how do they do it???).
Thanks again for all your help Ken :-)
--
Best regards
Sylwek
