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01-02-2019, 09:23 AM - 1 Like   #46
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Based on a somewhat quick look, your copy of the K is looking pretty good...the FA slightly disappointing by comparison.

01-02-2019, 09:57 AM   #47
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Here is a shot I made when I first got my Rokinon 20mm. The only other glass I own that I can compare it with is a Polar (Samyang) 18-28mm lens I got new some 25 years ago and my DA 12-24 that I can use on my K1 from 18mm or so. Much better than the old Samyang and, it seems, just a bit better than the DA. All in all I am pretty happy with the lens. Hopefully it will get a better workout this year than last.
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01-02-2019, 10:41 AM   #48
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I've had a couple of K and M series primes in the past, I'm definitely not knocking them.
Unfortunately I don't have them anymore.
I never had a 20mm prime before the samyang/ Rokinon so I can't compare.
I can only speak for what I've tried myself, and for me, although the contrast may not be quite what we are used to from pentax glass, it is very easily remedied in post.
01-02-2019, 02:49 PM   #49
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QuoteOriginally posted by Ash Quote
I admire your good lady: stopped down she performs very well.
Thank you, I usually run her at F/8.0, but I notice in those examples it was from F/5.6 up to F/22.0...

01-02-2019, 02:55 PM - 2 Likes   #50
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QuoteOriginally posted by texandrews Quote
Based on a somewhat quick look, your copy of the K is looking pretty good...the FA slightly disappointing by comparison.
Yes, but remember I have done no post processing. None whatsoever. Corrections for distortion and CA/PF will bring the FA20-35 up nicely. At this juncture, I wish to say that post processing is almost a necessity if you are serious about your photography. I just decided to not do it in this circumstance to make sure I was not accused of bias.

---------- Post added 03-01-19 at 09:52 AM ----------

QuoteOriginally posted by Kerrowdown Quote
Thank you, I usually run her at F/8.0, but I notice in those examples it was from F/5.6 up to F/22.0...
Running her at f8 would make sense - the FA20mm is optically the same and is not different. I would use this lens at f2.8 if I intended to crop the bottom and top using a 16:9 ratio.
01-02-2019, 07:56 PM   #51
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QuoteOriginally posted by Wild Mark Quote
Yes, but remember I have done no post processing. None whatsoever. Corrections for distortion and CA/PF will bring the FA20-35 up nicely. At this juncture, I wish to say that post processing is almost a necessity if you are serious about your photography. I just decided to not do it in this circumstance to make sure I was not accused of bias.

---------- Post added 03-01-19 at 09:52 AM ----------



Running her at f8 would make sense - the FA20mm is optically the same and is not different. I would use this lens at f2.8 if I intended to crop the bottom and top using a 16:9 ratio.
It makes sense to me to compare unprocessed images. However, those from the older lenses can be improved in processing as well. Unless there are correction profiles for the newer lenses that are more effective.

---------- Post added 01-02-2019 at 08:05 PM ----------

QuoteOriginally posted by Kerrowdown Quote
Thank you, I usually run her at F/8.0, but I notice in those examples it was from F/5.6 up to F/22.0...
Since the A20 is supposed to have the same optics as the FA20, I was wondering about the the distortion issue mentioned concerning the FA. Did you do correct any distortion in the images you posted from the A20?
01-04-2019, 02:57 PM - 1 Like   #52
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QuoteOriginally posted by DSLRnovice Quote
Did you do correct any distortion in the images you posted from the A20?
I'm certainly can't remember doing anything too clever, with me it's just usually a little converging verticals correction, due to pilot error on my part.
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