[mst]

Except for the coma, quite an attractive lens:



http://www.opticallimits.com/nikon_ff/605-sigma8514ff



As to be expected, large portions of the review are identical to the one Klaus posted yesterday.



-- Markus

[Guest]

Would you recommend it over the Nikkor 85mm 1.4D?

[mst]

[quote name='Lomskij' timestamp='1301658187' post='7285']

Would you recommend it over the Nikkor 85mm 1.4D?

[/quote]



Yes.



Over the AF-S 85, too? No <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/wink.gif' class='bbc_emoticon' alt='' />



-- Markus

[Guest]

Does the 85f1.4 have significant focus shift and if so does auto focus adjust for such ?

[mst]

[quote name='you2' timestamp='1301660332' post='7289']

Does the 85f1.4 have significant focus shift and if so does auto focus adjust for such ?

[/quote]



Which one?



The Sigma? No and No.



The new Nikkor? Yes and No (IMO).



-- Markus

[Klaus]

[quote name='mst' timestamp='1301661092' post='7290']

Which one?



The Sigma? No and No.



The new Nikkor? Yes and No (IMO).



-- Markus

[/quote]



BTW, I was quite surprised that the Sigma had no significant focus shift. That's more an exception to the rule in this aperture class.

[Guest]

Thank you for the review!



May I ask you you to have a look at the photo attached? (f/1.4, OOC, just converted to JPEG in NX2)



I own the Sigma and use it with a D300. My only real issue with the lens is a huge amount of purple CAs that are often very visible when shooting with f/2 or faster.



Would you consider this as "normal behaviour" for this lens? I also have worse examples... Although you can usually get rid of the effect with Capture NX2 you often loose color information doing so.







Besides that on DX I have the impression that the borders a pretty good. Like the lens alot!



Thanks you,

Markus



EDIT: Just for the record: This is, how it looks after setting "Korrektur des Farblängsfehlers" to 75 in NX, and applying some sharpening and denoising.

[mst]

[quote name='markusw' timestamp='1301664566' post='7293']

Would you consider this as "normal behaviour" for this lens?[/quote]



Yes, a rather huge amount of CA and also Purple fringing is common with ultra fast primes.



In your sample, I'm not sure if this is fringing or simply "normal" LoCAs. I have the feeling the focus is a tad behind the bike. This would explain the magenta casts in front of the focal plane.



At very large apertures, it's rather difficult to find a subject flat enough to completely fit into the thin DOF.



However, I must admit that NX2 did a remarkable job in removing the magenta casts.



[quote name='markusw' timestamp='1301664566' post='7293']

Besides that on DX I have the impression that the borders a pretty good.[/quote]



They are a bit better, yes. A DX review is coming, too (both in Canon and Nikon mount).



-- Markus

[Yakim]

[quote name='mst' timestamp='1301661092' post='7290']

Which one?



The Sigma? No and No.



The new Nikkor? Yes and No (IMO).



-- Markus

[/quote]



You mean that the 85f1.4 AF-S has significant focus shift and you'd still recommend it over the Sigma? Why?

[Guest]

Thanks for the test, Markus (and Klaus, of course), great work. Results are just as I expected it. I'm looking forward to the AF-S review.



Christian