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09-10-2013, 08:30 AM   #31
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DA* 50-135mm F2.8 or even DA* 200mm F2.8 for the bokeh.

09-11-2013, 11:34 AM   #32
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QuoteOriginally posted by wmf2012 Quote
Hi,

Any one use other brand such as canon or nikon as well?

any idea which lens from Pentax equal to Nikon 85mm 1.4G.

This Nikon lens is arguable world best lens for portrait.
Tried the SDM 55 for 2 years now. It is smaller than Nikon 1.4/85 and can provide OK shots, but focus precision on the K5 sucks.
I tried the 1.4/85 from Nikon one day and got more keepers than with the 55 SDM on K5. Any more questions? The only lens that would match the performance of the 1.4/85 from Nikon appears to be the 1.8/85 II from Nikon.
09-11-2013, 04:27 PM   #33
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QuoteOriginally posted by zapp Quote
Tried the SDM 55 for 2 years now. It is smaller than Nikon 1.4/85 and can provide OK shots, but focus precision on the K5 sucks.
I tried the 1.4/85 from Nikon one day and got more keepers than with the 55 SDM on K5. Any more questions? The only lens that would match the performance of the 1.4/85 from Nikon appears to be the 1.8/85 II from Nikon.
A camera body, not a lens does the autofocussing. The OP asked about a lens. What you've provided is marginally useful. You have provided information on how one Pentax lens (which may be a good copy, or may not) on one body, no mention of whether you've done any focus calibration (i.e. maybe your copy of the Pentax DA* 55 needs some micro calibration, and maybe your copy of the 1.4/85 from Nikon didn't, we don't know) or checked to see if you have any decentering. You don't mention what Nikon body you tried the Nikon lenses on, so we don't know what AF subsystem specs you're comparing, and you don't make it clear that you're comparing both AF systems and lenses in your post. What have you provided, exactly?
09-11-2013, 07:52 PM   #34
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QuoteOriginally posted by fanofcc Quote
I don't understand why you want to shot portrait with 85mm at f1.4 or f1.2. Do you want use your images in your passport or driving license?
QuoteOriginally posted by Giklab Quote
Wait what??
Total depth of field with an 85mm @ f/1.4 @ 5 ft for APS-C is only a little over 1/2 inch, with the range of critical sharpness being almost nil. Basically you are in the realm of special effects.


Steve

09-12-2013, 01:26 AM - 1 Like   #35
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QuoteOriginally posted by Aristophanes Quote
I use the DA 70 which is fantastic.
I find the rendering of the DA70mm f/2.4 to be a bit hard and clinical, the FA77 tends to be less contrasty which does wonders for portraits - though in the studio where you have control over lighting just about any lens will do well.


Pentax K10D - Pentax SMCP-FA77mm f/1.8 Limited.
09-12-2013, 02:56 AM   #36
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QuoteOriginally posted by LennyBloke Quote
Get ready for an avalanche of posts about the legendary A* and FA* 85mm f1.4's
You beat me too it.
09-12-2013, 04:57 AM   #37
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The DA 70/2.4 is my goto lens for portraits. As which is the "best" portrait lens the general consensus seems to be something in the 70 to 85mm range. it's probably a better use of time to work on your technique than debating this issue.

That being said I wouldn't mind an 85/1.4.

Tom G
09-12-2013, 05:26 AM   #38
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Listen to Doug (Digitalis). In the Pentax world the FA77 reigns supreme, even on APS-C. I sold my DA70 for exactly the reasons he described, and although I like the DA*55 very much, but it is more of a general purpose WR lens than a pure (although useful) portrait lens.

The depth of field of a 85/1.4 wide open is actually pretty extreme, and will rarely be useful for the vast majority of portraits.

09-12-2013, 07:35 AM   #39
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I really do recommend looking at photos taken at maximum aperture with these legendary lenses and I think you will find very few that make good photos (as stevebrot said, your near the realm of special effects), whichever lens you choose (and you won't go wrong with any of the Pentax offerings IMO) the aperture that suits portraits best will be stopped down at least one stop most of the time, and often a bit more.

I suspect you need to work out which lens has the "character" that you want, but it may not be easy - I have the DA*55, FA 77mm Ltd and the FA* 85mm and they are all superb in their own way.
09-12-2013, 10:24 AM   #40
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I know I'm like a broken record on this topic but I should a *lot* of portraits and my vote still goes to the Voigtlander Nokton 58mm 1.4. On APC it approximates to FL you're looking for. Shallow DOF, amazing bokeh, stunning sharpness, and a pleasure to use (if you're a fan of manual focusing).
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