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sceptic
Joined: 01 Jun 2013 Posts: 255
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Posted: Tue Apr 22, 2014 11:50 am Post subject: Bokina (Viv S1) vs Nikkor-P 105/2.5 Sonnar quick test |
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sceptic wrote:
Owning both of these highly regarded lenses, I thought I´d pit them against each other, to see what differences one could find between them. What I tried to test/compare was: sharpness, bokeh and flare resistance (knowing beforehand that the Bokina is quite poor in this regard), wide open and at f/5.6. The camera (Fuji X-E1) was mounted to a tripod and a bare flash was set to camera left firing into the ceiling for bounce lighting. Flash output was set manually and was equal for both lenses (of course increased for the f/5.6 shots as compared to the f/2.5 ones). Shutter speed was set at 1/125 for all shots. Ambient light was constant (clear sky) for all the shots. The camera was moved back for the Nikkor shots, to get the same framing (almost, anyway). The "model" was chosen for her uncanny ability to sit perfectly still for endless stretches of time...
Here are the results:
Bokina wide open by scepticswe, on Flickr
Bokina @ 5.6 by scepticswe, on Flickr
Nikkor 105/2.5 wide open by scepticswe, on Flickr
Nikkor 105/2.5 @ 5.6 by scepticswe, on Flickr
Finally, 100 % crops of the doll's right eye:
Bokina vs Nikkor 105/2.5 by scepticswe, on Flickr
To me, there is no clear winner. The Bokina "wins" on better sharpness wide open (stopped down they´re pretty much equal) and nicer bokeh stopped down (the Nikkor's six-bladed aperture shows quite well). The Nikkor handles flare much better though, despite being only single coated. Vivitar's VMC is really the Bokina's weakest link, IMHO. _________________ Sony A7R and wildly varying flora of lenses |
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simbon4o
Joined: 19 Dec 2011 Posts: 390 Location: Bulgaria
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Posted: Tue Apr 22, 2014 5:17 pm Post subject: |
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simbon4o wrote:
It will be very interesting to see this battle between bokina and AIS nikkor 105 2.5 which is better than the old one. The bokina wins from now in sharpness but bokeh... it will be interesting _________________ 10-300мм 4.0 - 1.2 - 4.5 NIKON&Sony bodies / Sony 10-18, Pentax 28 2.8 II, CZJ 35 2.4, Nikkor DX 35 1.8, Samyang 35 1.4, KMZ 50 1.7, FDn 50 1.2 L, Nikkor 55 2.8, Rokkor 58 1.2, Soligor 85 1.8 Preset, Samyang 85 1.4, Canon FDn 85 1.2 L, Tokina AT-X 90 2.5, Canon FDn 135mm 2.0, Nikkor 180 2.8 ED, Tair 300 4.5
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aoleg
Joined: 22 Feb 2008 Posts: 1389 Location: Berlin, DE
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Posted: Wed Apr 23, 2014 8:02 am Post subject: Re: Bokina (Viv S1) vs Nikkor-P 105/2.5 Sonnar quick test |
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aoleg wrote:
sceptic wrote: |
To me, there is no clear winner. The Bokina "wins" on better sharpness wide open (stopped down they´re pretty much equal) and nicer bokeh stopped down (the Nikkor's six-bladed aperture shows quite well). The Nikkor handles flare much better though, despite being only single coated. Vivitar's VMC is really the Bokina's weakest link, IMHO. |
A nice test. While I generally agree with your conclusion (the macro lens should be well sharper at this distance than the non-macro Nikkor), your wide open shot taken with the Nikkor appears slightly misfocused. I can tell by the shape of the white reflection in your model's eye. Also, wide open contrast appears a little higher with the Nikkor. _________________ List of lenses |
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sceptic
Joined: 01 Jun 2013 Posts: 255
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Posted: Wed Apr 23, 2014 2:41 pm Post subject: |
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sceptic wrote:
You may very well be right, thanks for noticing. I'll reshoot when I get the time. It would be interesting to try the Tokina AT-X version, to see how better coatings affect the result. _________________ Sony A7R and wildly varying flora of lenses |
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simbon4o
Joined: 19 Dec 2011 Posts: 390 Location: Bulgaria
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Posted: Wed Apr 23, 2014 5:49 pm Post subject: |
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simbon4o wrote:
А very deep hood improves the vivitar performance a lot. And yes the nikkor's file is a little miss focused. The real test for those will be portrait shot from bigger distance than this one, with more stiff to show the bokeh. And other test - something on very close distance like macro - than you will see the resolution of the vivitar. At portrait distance you have to test them on at least 24mp crop sensor to see any difference in sharpness but when you shoot macro the lens with more sharpness in reserve will show it. I think that I am going to get 105 2.5 AIS for portraits and keep the bokina for macro. They both are great lenses for their purposes. _________________ 10-300мм 4.0 - 1.2 - 4.5 NIKON&Sony bodies / Sony 10-18, Pentax 28 2.8 II, CZJ 35 2.4, Nikkor DX 35 1.8, Samyang 35 1.4, KMZ 50 1.7, FDn 50 1.2 L, Nikkor 55 2.8, Rokkor 58 1.2, Soligor 85 1.8 Preset, Samyang 85 1.4, Canon FDn 85 1.2 L, Tokina AT-X 90 2.5, Canon FDn 135mm 2.0, Nikkor 180 2.8 ED, Tair 300 4.5
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