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12-29-2019, 03:47 PM   #16
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Never having used the Tokina it is hard for me to make such a judgement. If you like the results then your decision is made.

I'll just repeat myself: Unless you really need f/2.8 then get the DFA 28-105.

12-29-2019, 03:54 PM   #17

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Maybe you can also consider 645 lenses with adapter
12-30-2019, 10:37 AM   #18
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QuoteOriginally posted by fsge Quote
Maybe you can also consider 645 lenses with adapter
let's be serious, speed and focus accuracy is a priority-listed at the beginning of the topic, and sharpness is essential throughout the frame, as well as across the range, i don't understand what you meant,

Last edited by mbukal; 12-30-2019 at 10:48 AM.
12-30-2019, 10:56 AM   #19
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I think the term "kit lens" is badly maligned. The Pentax-A 50mm f/1.7 that was kitted with my "Super Program" in 1983 was, and still is, a fine lens.

Frankly, I believe the term "film lens" is also maligned. Until a few years ago, lenses were rated according to how they rendered the center part of the image. Measured against that standard, I have found that many film era lenses, including that Pentax-A 50mm, and the more recent Pentax-FA 28-105mm, are just fine. If you want corner-to-corner sharpness, you will have to pay for it, both in money and in weight, but part of the pleasure of K-mount is discovering how well the older lenses render. In fact, the cry that preceded the K-1 was some form of "Let our film lenses be themselves", and that has not changed.

12-30-2019, 11:36 AM   #20
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weight - I'm used to it using the Tokina ATXPROSV / it was built like a tank /, I fell in love with the sharpness using Pentax F28 / 2.8 + F50 / 1.7 film lenses, I don't know for other sharpness because I used 90% only film lenses on K1 and 10% DFA lenses when I borrowed them on K1
mostly when I used DA12-24 / 4 + F28 / 2.8 + F50 / 1.7 + DA50-135 / 2.8 on apsc or F28 / 2.8 + F50 / 1.7 + DFA 70-200 / 2 , 8 on K1 I didn't notice any difference in sharpness on film or digital lenses because the sharpness was completely satisfying, for Tokina I have a compromise that doesn't matter when I shoot 90% of the family but is important in 10% when I shoot commercially so sometimes I only use F 28 / 2.8 + 50 / 1.7 than Tokina ATXPROSV 28-70 / 2.8, in this context I would like to have a discussion for help

an obvious difference in sharpness exists between DA 55-300 / 4-5,8 ED on apsc and FA 80-320 / 4,5-5,6 (sharper) on K1, as well as DA 17-70 / 4 (sharper) on apsc and Tokina ATXPROSV 28-70 / 2.8 on K1

Last edited by mbukal; 12-30-2019 at 11:51 AM.

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