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Forum: Pentax DSLR Discussion 08-26-2009, 06:11 PM  
Front-back focusing issue
Posted By schmik
Replies: 10
Views: 3,291
This whole FF/BF thing is pet hate of mine!

Why bother buying a lens faster than 2.8 if it is useless at this F-stop? I also think that this where a lot 'soft wide open' comments come from. FF or BF not an inherent softness in the lenses.

The fact that the bodies now have the AF adjustment as part of the standard menus is like an admission of very lose tolerances in pentax QA. Either the body or all fast lenses should come with a test chart and instructions on how to use it.

I'm sure too many people stop down their fast lenses to compensate. I used to and i used to question what it was that i had paid for.

Fortunately, I now have a K7 so a can adjust the AF individually by lense. So far so good. AF (at the open end) is yeilding great results. At the moment i would not say that it is a gimmick.

BTW my experiences are based on the DA LTDs.... how the hell do people with FA LTDs or the FA 1.4 get along? Are these lenses even viable to use wide open? Or do you keep sending them back until you get a good one (assuming you have a body pre k20d)?

mike
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