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+--- Thread: Well... (/showthread.php?tid=430)
Well... - mst - 01-23-2017
Since you mentioned the swirly bokeh twice now: do you have links to examples? Not asking because of any doubt, but because I didn't follow other reviews or field reports about the lens (intentionally... I try to remain unbiased about lenses I haven't reviewed yet).
-- Markus
Well... - Brightcolours - 01-23-2017
Sure
, here are a few examples:https://www.flickr.com/photos/michaeldoering/31788577581/in/pool-nikon105mmf14/
https://www.flickr.com/photos/146991168@N08/30666258043/in/pool-nikon105mmf14/
https://www.flickr.com/photos/michaeldoering/31231561256/in/pool-nikon105mmf14/
https://www.flickr.com/photos/michaeldoering/30297425933/in/pool-nikon105mmf14/
https://www.flickr.com/photos/michaeldoering/22750478348/sizes/l
https://www.flickr.com/photos/eternal_ray/30101556813/in/pool-nikon105mmf14/
https://www.flickr.com/photos/michaeldoering/30040952391/in/pool-nikon105mmf14/
http://cdn-4.nikon-cdn.com/e/Q5NM96RZZo-fTYlSZPBjlMhlFa1VHARsAM_UXbQi64w5OWhD_DiFhuDuMWvafsT__IvZtRJljn72nsthT-j02Q==/Photography/20064_sample-photo_05.jpg
Well... - mst - 01-23-2017
Thanks!
-- Markus
Well... - JJ_SO - 01-23-2017
Remaining unbiased is an illusion, Markus :lol:
Well... - Rover - 01-23-2017
Quote:Wanna bet the Mitakon 85mm f1.2 vignettes more than the new Samyang 85mm f1.2 because of that?No bets against the obvious - I can see that this is going to be the case. Again, I don't really care about MF lenses so I haven't been researching these, but if Photozone is ever going to review one of those, I'm going to read the article, if only out of pure curiosity.
Well... - davidmanze - 01-23-2017
Quote:The heavy vignetting (and swirly bokeh) are both because of the narrow F-mount. A lovely lens nonetheless.Oh how ironic the world can be, while we're talking about large aperture F mounts.
Lenstips review of the Mitakon 85mm F1.2 in the Nikon mount... the Mitakon's vigneting..I quote:
"Employing the maximum relative aperture you have to take into account the loss of 45% of light (−1.73 EV) in the frame corners. It is not a low value but still the Mitakon is better than the Canon which lost as much as 51% of light. By f/1.4 the vignetting decreases to 40% (−1.49 EV). Once again that value is quite high but you should remember that the huge Otus by f/1.4 lost as much as 56% of light!"
Out bayoneted the Nikon F mount? No........ how's that for a rabbit out of the hat-trick?
Well... - davidmanze - 01-23-2017
Quote:Haha, well, it's probably safe to assume that it's not a zoom lens... sorry, dave
-- Markus
Hey I guessed it first time..
Background bushes seem to be the 105's Achilles heel;
https://www.dpreview.com/forums/thread/4063454
Behind the sundial.
Well... - JJ_SO - 01-23-2017
About that "swirly bokeh": After seeing from the same photographer this here
https://www.flickr.com/photos/michaeldoering/31026682503/in/pool-nikon105mmf14/
I start suspecting what other lenses would have done with the swirly background while try to getting that sharpness level
smooth bokeh and super sharpness are contradictory. In doubt, I prefer to have a sharper lens as more blur can be added (within limits) in post.If "necessary", I can get a "swirly" bokeh even from a 56/1.2 APD
![[Image: i-BQMs7xC-X2.jpg]](https://photos.smugmug.com/photos/i-BQMs7xC/0/X2/i-BQMs7xC-X2.jpg)
Well... - Brightcolours - 01-23-2017
Quote:Oh how ironic the world can be, while we're talking about large aperture F mounts.I think you are not taking into account lens design? The Canon lens is a very old design, going back to the end of the 1970's. That the current Canon with basically the same design, just a bit bigger back element, vignets a lot, it still vignets less than the smaller mount diameter Canon FD relatives. There is more than one variable in vignetting.
Lenstips review of the Mitakon 85mm F1.2 in the Nikon mount... the Mitakon's vigneting..I quote:
"Employing the maximum relative aperture you have to take into account the loss of 45% of light (−1.73 EV) in the frame corners. It is not a low value but still the Mitakon is better than the Canon which lost as much as 51% of light. By f/1.4 the vignetting decreases to 40% (−1.49 EV). Once again that value is quite high but you should remember that the huge Otus by f/1.4 lost as much as 56% of light!"
Out bayoneted the Nikon F mount? No........ how's that for a rabbit out of the hat-trick?
The 55mm f1.2 lenses I have (you have) also a lot.
So yes, the 105mm f1.4 Nikkor vignets a lot due to the narrow mount's design limits. The Samyang 85mm f1.2 Vignets less than the Mitakon due to the wider mount diameter.
Well... - JJ_SO - 01-24-2017
Quote: Hey I guessed it first time..
Background bushes seem to be the 105's Achilles heel;
https://www.dpreview.com/forums/thread/4063454
Behind the sundial.
Well, it's a bit abusing the lens. Being portrait specialist, I think the best proportions in distance for headshots are different from the ones we see in the picture. I don't want to defend an insanely priced product of China, but with some effort you can find weak spots in each lens design.