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10-15-2015, 01:51 AM   #46
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FA 31 and FA77 are my sharpest (if focus correctly)
for non Ltd, my old Helios 58mm f2 is crazy sharp at the center (color soup at the corner )

10-15-2015, 02:44 AM   #47
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Assuming similar apertures and leaving out my macro lens, my two sharpest lenses are the DA *55 and the FA 77 limited. If I shoot at f8, all of my lenses are sharp.
10-15-2015, 09:57 AM   #48
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This is as run of the mill as you can get:
Pentax 16-45mm f4
SMC Takumar 135mm f2.5
10-15-2015, 10:06 AM   #49
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QuoteOriginally posted by hjoseph7 Quote
SMC Takumar 135mm f2.5
Nothing run of the mill in either of your choices. This one in particular.

10-15-2015, 03:16 PM   #50
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QuoteOriginally posted by redcat Quote
for non Ltd, my old Helios 58mm f2 is crazy sharp at the center (color soup at the corner )
Haha, yeah, I remember reading some test of 50-60mm primes, and Helios at f8 in the centre had the highest sharpness, beating modern glass. But wide open or at the edges? Not so good.
Similarly the Industar 50-2 - stop down, centre? Its great, and has next to no CA, so it looks nice. But edges? Uff, never get truly sharp, even on APSC
10-15-2015, 03:55 PM   #51
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QuoteOriginally posted by Na Horuk Quote
But wide open or at the edges? Not so good.
My copies are decent sharp wide open on cropped camera if focusing with LV. Actually, all of vintage manual lenses are sharp with LV and precise focusing, imo.
It's a pain in the neck however.
10-15-2015, 06:44 PM   #52
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Of the lenses I own, my Samyang-made Bower 35mm f/1.4 probably stands atop the heap. Its razor sharp, even at f/1.4. The trick is being able to find subjects being that sharp with that thin of a depth of field is actually useful for.
10-15-2015, 06:58 PM   #53
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QuoteOriginally posted by Dewman Quote
I'd ask that we leave out the dedicated macro lenses, because they're specifically designed for that razor-edged sharpness. I guess what I'm asking is, what's your favorite "run of the mill" PENTAX lenses as far as every day shooting.... close-focus, landscape, still-life, etc.


I know what you're thinking already. What the heck is a "run-of-the-mill lens?" Let's say the M, A, F and FA series of lenses just for the sake of discussion. Do you have any particular favorites?


Here's mine: (As you will notice, I don't include any of the "Limited," or * lenses because they don't fit within my budget. So, I suppose that's why I asked about "run-of-the-mill" lenses.)


1. DA 50mm f:1.8
2. M 50mm f:1.7
3. M 100mm f:2.8
4. M 75-150mm
5. A 70-210mm
6. FA 35-70mm
7. FA 70-210


This is perhaps too broad of a subject, but.... just felt like starting some dialogue on the subject and see how my list compares to that of other Pentaxians.

If comparing to center sharpness only, the latest DA version lenses, even 18-135 can beat any old FA lens due to digital optimization.


However, if returning to overall sharpness including edge&corner,FA 31 and Tokina 90 macro really shine. My own test is that Tokina 90 > DA 50 ~ FA 31

11-01-2015, 12:35 PM   #54
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My sharpest lens non macro is the FA77. Including macro you add the DA35. This one seems to have better corners at f/2.8 than the FA31, and more contrast too. My other lenses are sharp, but not necessarily as sharp as the first 2, or need to be closed down more.

Optimized for digital or not, I don't fee like the DA17-70, DA35 f/2.4 or DA18-135 can match the FA77 or DA35 ltd, even on the center. Resolution figure may be similar on reviews, but contrast and overal real life results are another thing.
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