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09-03-2015, 12:36 PM   #31
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I spent all of last week comparing my 10 different 50mm Pentax manual focus lenses on my K3 camera.

The Revuenon 55mm f/1.2 was my sharpest lens! My Pentax 50mm A 1.7 won the best overall (color, contrast, sharpness, etc.). My Pentax 50mm M 1.4 was among the poorest performers.

I did not include my SMC Pentax-DA* 55mm F1.4 SDM in this shoot out. If I had, I suspect it would have beaten them all as this one terrific lens!

09-03-2015, 01:06 PM   #32
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QuoteOriginally posted by Cuthbert Quote
I think the A lenses have a better coating (they definitely look more "red" than the Ms), my A 50mm f1.4 is better than the M f1.4. It also have a nice bid dots bokeh the M lens doesn't have.
I dunno. the bokeh (very subjective) looks really nervous to me. Of course we all have different tastes but generally creamy and smooth is coveted more these days than the harsher outline bokeh.
09-03-2015, 04:42 PM   #33
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QuoteOriginally posted by tuco Quote
I dunno. the bokeh (very subjective) looks really nervous to me. Of course we all have different tastes but generally creamy and smooth is coveted more these days than the harsher outline bokeh.
These shots were taken at f1.4 and from very close distance with the foreground very far away. For me I like it a lot, but I assume you prefer this kind of bokeh:




Given by a Canon 50mm f1.4 S.S.C.

On the other side this is the famous Nikkor 50mm f2:



Not that special to me.

This is the K55 mm f2:

09-03-2015, 10:22 PM   #34
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QuoteOriginally posted by Cuthbert Quote
These shots were taken at f1.4 and from very close distance with the foreground very far away. For me I like it a lot, but I assume you prefer this kind of bokeh:
Yes, especially for an environmental portrait lens. I think people look better with a smooth, less distracting backgrounds in general. Perhaps if you want to create a mood of nervousness and tension with a busy background like that would be appropriate. But that's my 2 cents worth.

I've noticed generally with ringed bokeh it outlines the edges of complex foliage making for less than a smooth out of focus background while yet render smoothy with more solid objects in the background.

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