On 2006-03-26, at 19:36, Dario Bonazza wrote:
1 - Provided that the D2 will sport KAF3 mount, capable to drive
USM lenses, my idea is that the D2 will include a rather weak AF
motor (at best, the same used in previous D-series, or maybe even a
weaker type), as it could be seen (by Pentax, not by me) as enough
to barely (in case of action shooting with longer lenses) drive
older lenses, while USM control will assure better performance with
top end lenses. I don't expect the D2 to be a true break (dropping
in-camera AF motor and only allowing USM lenses).
Well, I dont' expect it too, but on the other side Nikon D200 has
both - strong built-in motor and full SUM support. But if it would
have motor the same as in Dl - then it would be good for noise
levels. AF motor used in ist Dl is very quiet - no worse than
quietest motors in Nikon or Minolta bodies.
2 - Of course, if the D2 won't support USM, I expect it to have at
worst the same AF motor of the previous D-series, or maybe one with
higher torque, so that it can drive lenses faster than the previous
D-series do.
If it won't support USM, then it should have motor as strong as the
one in MZ-S and as quiet as the one in Dl ;-)
In any case, I'm expecting more data processing power, so that AF
speed will improve in certain circumstances, if not always. I don't
expect the D2 to be worse than the D2. However, I expect it to be a
good leap upward, not a giant one. I'm not so optimist to think
that Pentax will include BOTH more powerful AF motor and USM
support in the upcoming D2, as Paal thinks. However, I'd be happy
to be wrong and Paal to be right.
Yes, definitively - AF especially in low light must be at least as
good as it is in MZ-S at the same time being very sure regardless of
focusing motive thanks to cross sensors. On tkeade.de in description
od D2 they have written "very fast AF" - I hope it means both -
better low light performance and USM in lenses!
--
Best regards
Sylwek
