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philslizzy
Joined: 07 Aug 2012 Posts: 4747 Location: Cheshire, England
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Posted: Thu Nov 15, 2012 9:03 pm Post subject: testing m42 - nikon lensed adapter |
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philslizzy wrote:
I use a lensed adapter with my screw lenses. There have been posts about these adapters. I tested my Helios 44-2 58mm f2.
Taken on a Nikon d3200 First photo is a straight shot, the rest are 100% crops.
full frame:
I think even one stop down makes a difference. The corner blur is not too noticeable on longer lenses.
I think they're worth the money. I have three different makes and they all perform to the same standard
edit: I mention this as you may be wondering. The contrast on the f4 pic was tweaked in photoshop for a reason known only by my subconcious, and only it knows why I didnt change the rest. |
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kds315*
Joined: 12 Mar 2008 Posts: 16497 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Fri Nov 16, 2012 8:22 am Post subject: |
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kds315* wrote:
Depends what you expect. For most it should be OK to use such adapters, very critical pixelpeepers
certainly should better stay away from using such. But sometimes there is actually no choice to get
a certain lens mounted to a Nikon body otherwise. I use it too from time to time and it worked for me. _________________ Klaus - Admin
"S'il vient a point, me souviendra" [Thomas Bohier (1460-1523)]
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
https://www.flickr.com/photos/kds315/albums my albums using various lenses
http://photographyoftheinvisibleworld.blogspot.com/ my UV BLOG
http://www.travelmeetsfood.com/blog Food + Travel BLOG
https://galeriafotografia.com Architecture + Drone photography
Currently most FAV lens(es):
X80QF f3.2/80mm
Hypergon f11/26mm
ELCAN UV f5.6/52mm
Zeiss UV-Planar f4/60mm
Zeiss UV-Planar f2/62mm
Lomo Уфар-12 f2.5/41mm
Lomo Зуфар-2 f4.0/350mm
Lomo ZIKAR-1A f1.2/100mm
Nikon UV Nikkor f4.5/105mm
Zeiss UV-Sonnar f4.3/105mm
CERCO UV-VIS-NIR f1.8/45mm
CERCO UV-VIS-NIR f4.1/94mm
CERCO UV-VIS-NIR f2.8/100mm
Steinheil Quarzobjektiv f1.8/50mm
Pentax Quartz Takumar f3.5/85mm
Carl Zeiss Jena UV-Objektiv f4/60mm
NYE OPTICAL Lyman-Alpha II f1.1/90mm
NYE OPTICAL Lyman-Alpha I f2.8/200mm
COASTAL OPTICS f4/60mm UV-VIS-IR Apo
COASTAL OPTICS f4.5/105mm UV-Micro-Apo
Pentax Ultra-Achromatic Takumar f4.5/85mm
Pentax Ultra-Achromatic Takumar f5.6/300mm
Rodenstock UV-Rodagon f5.6/60mm + 105mm + 150mm
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Aanything
Joined: 27 Aug 2011 Posts: 2201 Location: Piacenza, Italy
Expire: 2014-05-30
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Posted: Fri Nov 16, 2012 12:35 pm Post subject: |
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Aanything wrote:
All the lensed adapters I tried (minolta MD to Minolta AF, Nikon to sony AF, some others) had this behavior:
almost unusable wide open due to glow, highlight softness and aberrations, acceptable from 1-1 and a half stops down.
Then there are better and worse ones, but none was acceptable wide open with none of the lenses I tried them with.
Anyway, since you don't often need wide open and focus at infinity together, having a glassed and a not glassed adapter can be a good (though a bit uncomfortable) solution. _________________ C&C and editing of my pics are always welcome
Samples from my lenses
My gear
My Flickr |
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Attila
Joined: 24 Feb 2007 Posts: 57840 Location: Hungary
Expire: 2021-11-18
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Posted: Fri Nov 16, 2012 3:46 pm Post subject: |
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Attila wrote:
Aanything wrote: |
All the lensed adapters I tried (minolta MD to Minolta AF, Nikon to sony AF, some others) had this behavior:
almost unusable wide open due to glow, highlight softness and aberrations, acceptable from 1-1 and a half stops down.
Then there are better and worse ones, but none was acceptable wide open with none of the lenses I tried them with.
Anyway, since you don't often need wide open and focus at infinity together, having a glassed and a not glassed adapter can be a good (though a bit uncomfortable) solution. |
+1 use them only without glass and if need infinity use Nikon or medium format lenses, like Pentacon SIX and Tamrons. _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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philslizzy
Joined: 07 Aug 2012 Posts: 4747 Location: Cheshire, England
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Posted: Sat Nov 17, 2012 11:17 pm Post subject: |
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philslizzy wrote:
Kuri Bay wrote: |
Philslizzy,
This is interesting because the other day I had noticed this exact same 'foggy' effect when testing a recently acquired 55mm f/1.8 M42 lens (different brand). I was also using an M42-to-Nikon adapter that has an infinity focus lens.
I had not attributed the 'fogginess' to the M42/Nikon adapter at the time. I have seen no such effect with any other lens I have used on my adapter, but my 55mm f/1.8 lens is the lowest aperture M42 lens I have tested.
As with your test, my 55mm f/1.8 lens will sharpen up at about f/4.
Now I will have to try my lens again to see if the adapter is what was causing the issue.
Have you tried your lens with an M42-to-Nikon adapter that has no infinity focus lens, using a closer subject, to see if the infinity focus lens is actually the problem?
Have you seen this issue with other lenses mounted on your adapter?
My M42-to-Nikon infinity adapter is a fairly cheap brand, but I have seen no issues with any lens I have tried before, other than a slight added focal length. |
Re this and your later post:
The Helios lens doesnt have any softness issues, I've used the helios quite a lot without the adapter and there's no softness. I'll try it with a couple of other screw fit lenses and show it here.
The adapter i used in this test was my first, about £8 from China on ebay. I have 3 different and they are pretty consistent.
I expect with a full frame camera the edges will be very soft. I'll try a couple of shots on the Nikkormat. But on the APS-C sensor I'm happy with the results. I suppose if I was to require shallow depth of field for portraits etc the edges wouldnt matter so much anyway. |
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martinsmith99
Joined: 31 Aug 2008 Posts: 6943 Location: S Glos, UK
Expire: 2013-11-18
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Posted: Sun Nov 18, 2012 12:04 pm Post subject: |
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martinsmith99 wrote:
Nice test samples. Thanks for posting. _________________ Casual attendance these days |
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GaborF
Joined: 06 Nov 2012 Posts: 35
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Posted: Tue Nov 20, 2012 9:10 am Post subject: |
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GaborF wrote:
The helios thread has some images posted from Nikon camera, glassless M42 adapter and Helios 44-2
Wide open is usually softer, like this image:
(image deleted - please observe maximum upload size of 1600 wide)
Then you step it down and gain more sharpness and IQ, and then you are happy:
(image deleted - please observe maximum upload size of 1600 wide)
(Feel free to re-upload them at 1600 or go to the widescreen section of the forum)
Edited by Farside |
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philslizzy
Joined: 07 Aug 2012 Posts: 4747 Location: Cheshire, England
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Posted: Tue Nov 20, 2012 1:16 pm Post subject: |
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philslizzy wrote:
Ok so heres a test done this morning.
The First shot was taken with my Nikkor 18-55 at about 50mm, widest aperture f5.6 focused on the centre of the image
next is a series of shots taken with Helios and Pentacon lenses with and without adapters. I have included 50mm f1.8 nikkor as a control standard. These are 100% crops
The helios holds its own against the nikkor at just one stop down
at f5.6 theres almost no difference
I actually quite like the Pentacon softness, that would be great for dreamy portraits
My conclusion: Quality and softness? Depends what lens you use
BTW you can see the extra magnification that the adapter gives you.
I may try these on my full frame film camera |
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