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10-18-2010, 12:17 PM   #16
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QuoteOriginally posted by Pentaxor Quote
from the images that I saw, I believe it's sharper and has more contrast compared to the Rokinon. this is from wide open to smaller apertures. although the Rokinon is sharp from wide open, it doesn't improve a lot nor by much when stop down. in other words, it doesn't get as sharper as much as other 85mm lenses do. the M85 for example trumps it from F2 and worse onwards. the J-9 catches up slightly at f2.8 and beats it at f4 and f5.6. although inspite of that shortcoming, the Rokinon's has very high transmission and is really a bright lens. but the great thing about it is it's buttery smooth bokeh that blends well with it's shallow DOF. personally, I prefer the Rokinon's bokeh better than what I have seen with the Sigma, although the Sigma has excellent bokeh as well. this must be due to the difference on the approach of both lenses preferring which area to focus on.
I've owned the M85/2 and wasn't all that impressed, except for the bokeh.

I own the Nikon 85/1.8 and like it a lot, but the Rokinon is sharper at 1.4 than the Nikon is at 1.8. Here's a couple 100% crops from the Rokinon at f/1.4:




It does get quite a lot sharper still as you stop down to about f/8 or so. Maybe I got a better copy than you, I dunno. I just know I'm probably going to sell my Nikon lens. :P

10-18-2010, 12:24 PM   #17
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Damn, I'll be looking for this - I though I saw a price of 1400us$ and was kind of annoyed - I have a samyang 85/1.4 but for my usage really need the AF (moving kids). 900 isn't to bad..
10-18-2010, 12:37 PM   #18
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Seeing that the Rokinon for all of its perks, is gathering dust, relative to my usage of DA40, 70, FA77, 50, DFA100, etc. I for one, will not be discounting the usefulness of AF.

How soon we all forget. The basis for this demand (in Pentax, at least) is the relative rarity and expense of the FA 85mm 1.4. Zeiss was a rare luxury, but only in the same way you'd overpay for an A* 85mm 1.4. I'd even go as far as to say Zeiss knew this was curtains for them with Sigma launching another lens that would compete for Pentax user marketshare.

Zeiss was interesting for a moment, but seeing my non use of my manual focus 85mm, I'm tempted to offend a few and say that $1400 manual focus 85mm 1.4's on Pentax are borderline obsolete. (And I'm rather glad about that). Key operative price (before all of you 85mm Tak users get riled up).

The only thing that would really make this a horse race is if Rokinon comes out with their own 85mm 1.4 AF lens. Even with screw-drive AF, I'd be in for one if it were under $600. As things are, the Sigma offering looks to be the definitive go-to new kid on the block -lens. Can't wait for some Pentax reviews.
10-18-2010, 12:47 PM   #19
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QuoteOriginally posted by deadwolfbones Quote
I've owned the M85/2 and wasn't all that impressed, except for the bokeh.

I own the Nikon 85/1.8 and like it a lot, but the Rokinon is sharper at 1.4 than the Nikon is at 1.8. Here's a couple 100% crops from the Rokinon at f/1.4:




It does get quite a lot sharper still as you stop down to about f/8 or so. Maybe I got a better copy than you, I dunno. I just know I'm probably going to sell my Nikon lens. :P
Yes, it is sharper than the Nikon 85/1.8. the Nikon even gets a kicking from the FA77 wide open. what I meant sharper is that it doesn't get very sharp the way that other 85mm lenses gets when they stop down. Rok at f4 is not as good a M85 at f4 and J-9. and so forth and so on as they stop down further. the increase in sharpness is just not that high.

as far as the Nikon 85 is concerned, go on and sell it. I myself still prefer the Rok over it for portraiture. and for that, I'm happy for you.

10-18-2010, 12:50 PM   #20
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QuoteOriginally posted by Pentaxor Quote
Yes, it is sharper than the Nikon 85/1.8. the Nikon even gets a kicking from the FA77 wide open. what I meant sharper is that it doesn't get very sharp the way that other 85mm lenses gets when they stop down. Rok at f4 is not as good a M85 at f4 and J-9. and so forth and so on as they stop down further. the increase in sharpness is just not that high.
I own or have owned all of these lenses and my (subjective) impression is that the Rokinon is just as sharp at f/4-f/8 (if not sharper) as the M85 and Nik85/1.8, and DEFINITELY sharper than the Jupiter 9, which is a bokeh lens and nothing more IMO. The FA77 is pretty sharp wide open and razor sharp stopped down. None of the others come close.
10-18-2010, 01:12 PM   #21
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QuoteOriginally posted by deadwolfbones Quote
The FA77 is pretty sharp wide open and razor sharp stopped down. None of the others come close.
...Unless you add DA70 to the mix, which is sharper corner to corner
10-18-2010, 01:44 PM   #22
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QuoteOriginally posted by writeb Quote
...Unless you add DA70 to the mix, which is sharper corner to corner
Was talking about the ones mentioned by pentaxor.

Though tbh I also owned the DA70 and while I loved it it didn't touch the sharpness I've seen from my FA77 stopped down.
10-19-2010, 04:17 PM   #23
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Couple of early reviews of the Sigma 85mm f/1.4

10-19-2010, 04:46 PM   #24
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QuoteOriginally posted by Winder Quote
Hey, cool, that first review is from a former Pentaxian, maxwell1295. He moved on last year to shoot another system--lookin' good!
10-19-2010, 04:59 PM   #25
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doesn't the DA* 55 cost about the same and is effectively what used to be an 85mm FOV?
10-19-2010, 05:20 PM   #26
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QuoteOriginally posted by Pablom Quote
doesn't the DA* 55 cost about the same and is effectively what used to be an 85mm FOV?
DA* 55 actually costs a lot less.
10-19-2010, 07:34 PM   #27
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QuoteOriginally posted by deadwolfbones Quote
DA* 55 actually costs a lot less.
Yes, the same with the Sigma 50/1.4. the images are itching me to get one today, but sadly isn't available yet.
10-19-2010, 08:39 PM   #28
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QuoteOriginally posted by Pablom Quote
doesn't the DA* 55 cost about the same and is effectively what used to be an 85mm FOV?
Yes, but for portrait work 85mm-135mm is great to work with and the 85mm = 128mm on an APS-C.

I have been using the Sigma 50mm f/1.4 and it is a very good lens. All reports seem to indicate that the 85mm possible a little sharper, but a little more prone to CA in high contrast situations.
10-19-2010, 09:29 PM   #29
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QuoteOriginally posted by Winder Quote
Yes, but for portrait work 85mm-135mm is great to work with and the 85mm = 128mm on an APS-C.

I have been using the Sigma 50mm f/1.4 and it is a very good lens. All reports seem to indicate that the 85mm possible a little sharper, but a little more prone to CA in high contrast situations.
I'm not sure which 85mm lens doesn't display CA problems unless they are APO. the only way to avoid such is stopping down. but at f1.4, that is enough room to get the CA down without having to go on much smaller apertures. I think at f2 or f2.8, you should had probably taken care of that already.

with regards to CA and using the lens at wider apertures, I think there were posts that the CA of the Sigma is not that quite bad as it seems and can be easily corrected during post process.
10-20-2010, 06:17 AM   #30
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QuoteOriginally posted by Pentaxor Quote
the Zeiss is $400-$500 more. now that's a lot, especially for an MF. I can get a used FA* 85/1.4 for much less or the new Sigma for much lesser.

Sorry for the late reply . I think there are ebay sellers for the Zeiss 85mm selling the lens for less than US$1,000, sans shipping. Or there was about 1/2 a year ago, anyway. Can try your luck there!
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