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03-18-2015, 03:50 PM   #31
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QuoteOriginally posted by Stavri Quote
Had set the aperture to Auto, the DA* 55 shot at 1/30 the -F 50 shot at 1/50. It seems the older FF is brighter.
No it is not, it clearly needed that 1/10th ot 1/20th more time to have the same exposure. DA is 55mm and F is 50 mm - to keep this comparison meaningful you also might want to come closer with F50 - otherwise the detail resolved will be worse ( it is 10% shorter focal length so you need to compensate for that).

03-21-2015, 04:34 AM   #32
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Honestly Stavri you made your point that the winner are not the lenses but the photographer. Great composition, accurate focussing and shoot to the strength of your gear if what give you the best pictures.

You would notice still that theses shoot are say acceptably sharp and the second cat photo look great but none are really sharp. This is due to the apperture and performance of both lenses as such apperture. This is partially the reason for me I find the apperture in question a bit useless. If you use theses lenses for snapshoots/candid I would really advice against such wide apperture with not much sharpness, most out of focus anyway and lot of optical issues that disappear when stopping down.

I wonder how an FA77, FA43, a sigma/samyang/pentax 85mm f/1.4 would have handled the shoot and in general even keeping the same subject/framing etc how the current FA50/DA55 would have handled the shoot at say f/2 or f/2.8. Appertures that I find more usefull and important than f/1.4 or f/1.6 honestly.

More interrestingly maybe how would the DA50 f/1.8 would have done at f/1.8 counting it is the cheapest prime in pentax land with DA35 f2.4 ?

I highly suspect the DA50 f/1.8 has not much to fear against the FA50 f/1.4 except maybe in build quality. It may indeed far better due to modern coating and being designed for digital.
03-21-2015, 08:58 AM   #33
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QuoteOriginally posted by Nicolas06 Quote
Honestly Stavri you made your point that the winner are not the lenses but the photographer. Great composition, accurate focussing and shoot to the strength of your gear if what give you the best pictures.

You would notice still that theses shoot are say acceptably sharp and the second cat photo look great but none are really sharp. This is due to the apperture and performance of both lenses as such apperture. This is partially the reason for me I find the apperture in question a bit useless. If you use theses lenses for snapshoots/candid I would really advice against such wide apperture with not much sharpness, most out of focus anyway and lot of optical issues that disappear when stopping down.

I wonder how an FA77, FA43, a sigma/samyang/pentax 85mm f/1.4 would have handled the shoot and in general even keeping the same subject/framing etc how the current FA50/DA55 would have handled the shoot at say f/2 or f/2.8. Appertures that I find more usefull and important than f/1.4 or f/1.6 honestly.

More interrestingly maybe how would the DA50 f/1.8 would have done at f/1.8 counting it is the cheapest prime in pentax land with DA35 f2.4 ?

I highly suspect the DA50 f/1.8 has not much to fear against the FA50 f/1.4 except maybe in build quality. It may indeed far better due to modern coating and being designed for digital.
I won't give up Nicolas until say that the -F 50 is almost as good as the DA* 55..
03-21-2015, 09:18 AM   #34
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QuoteOriginally posted by Stavri Quote
I won't give up Nicolas until say that the -F 50 is almost as good as the DA* 55..
That would really please you isn't it?

03-21-2015, 09:34 AM   #35
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QuoteOriginally posted by Nicolas06 Quote
That would really please you isn't it?
It's personal to me, I sold my F 50/1.7 a lens I loved deeply to finance the F50/1.4. I want its loss to mean something goddammit!!

Last edited by Stavri; 03-21-2015 at 09:54 AM.
03-21-2015, 10:43 AM   #36
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QuoteOriginally posted by Stavri Quote
It's personal to me, I sold my F 50/1.7 a lens I loved deeply to finance the F50/1.4. I want its loss to mean something goddammit!!
I understand... Would not bet on the F50 f/1.4 to be better than the F50 f/1.7 through. Many say it is more the contrary, except bellow f/1.7.

Wanna share your opinion? Wasn't it a too great loss?
03-21-2015, 11:44 AM   #37
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All 50mm lenses are pretty sharp, I'm sure even if you put M 50mm f1.7 in the mix it would be difficult to tell them apart. The biggest difference won't be in sharpness in the centre of the frame, but in the edges, in CA, bokeh, colours.. a lot of this gets washed out if WB and other corrections are set to Auto. And also features like QS, WR, lens hood and distance scales and aperture ring (rarity these days)
And I think OP did well in proving that the F 50mm is a pretty great lens and delivers a lot for its price. The DA* 55mm costs much more, and definitely delivers something, but its up to the photographer to decide if this is "worth it"

Its similar to comparing DA 35mm f2.4 and FA 31mm ltd. DA 35mm is pretty sharp and comes at a great price. Many (most?) photographers will not need anything more. But there are still reasons to look at the FA 31mm and apparently enough people have decided that it is worth the price difference.


Last edited by Na Horuk; 03-22-2015 at 08:51 AM.
03-22-2015, 08:07 AM   #38
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QuoteOriginally posted by Nicolas06 Quote
I understand... Would not bet on the F50 f/1.4 to be better than the F50 f/1.7 through. Many say it is more the contrary, except bellow f/1.7.

Wanna share your opinion? Wasn't it a too great loss?
I shared my feelings about the F50/f1.7 in a dark and dingy corner of the forum....where no one could hear me

Last edited by Stavri; 03-22-2015 at 10:49 AM.
03-23-2015, 09:55 AM   #39
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#1 is the FA 50
#2 is the DA*55
03-23-2015, 09:58 AM - 1 Like   #40
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QuoteOriginally posted by Pavel_Zhelev Quote
#1 is the FA 50
#2 is the DA*55
It's the other way around sir, we unveiled the results here
03-23-2015, 05:54 PM   #41
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Thanks Stavri
03-25-2015, 02:59 PM   #42
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I was shocked at the amount of PF my 55 displayed at times but it is easily fixed. It does have much nicer OOF rendering than the 50 f/1.7 overall but it's real weakness is the slow AF. What's the use of all that extra weight due to slow motors? And it also can be made to flare quite extravagantly. More fun to be had with an A50 f/1.2 methinks
03-25-2015, 03:31 PM   #43
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I think Hague considers the implementation of SDM motor as crimes against photography...frankly I'd rather have the option of converting my Da* 55 to screw drive...
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