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chudy128314
Joined: 09 Oct 2015
Posts: 321
Location: Wrocław, Poland
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 Posted: Mon Nov 14, 2016 10:26 am Post subject: Meyer-Optik TRIOPLAN 100/2.8 projection lens + Sony A7R |
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chudy128314 wrote:
I've had very little time for my conversion projects, but finally I've found some  . It's Trioplan 100/2.8 from a projector, I converted it to M42 mount using dedicated step-up ring and focusing helicoid:
It performs just as you should expect - lots of bubbles, some glow, rather mild sharpness and low contrast.
Sony A7R, no post-processing besides resizing (although strong in-camera contrast boost was engaged).
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kds315*
Joined: 12 Mar 2008
Posts: 16541
Location: Weinheim, Germany
Expire: 2021-03-09
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| Posted: Mon Nov 14, 2016 2:04 pm Post subject: |
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kds315* wrote:
_________________
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"S'il vient a point, me souviendra" [Thomas Bohier (1460-1523)]
http://www.macrolenses.de for macro and special lens info
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https://www.flickr.com/photos/kds315/albums my albums using various lenses
http://photographyoftheinvisibleworld.blogspot.com/ my UV BLOG
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CERCO UV-VIS-NIR f1.8/45mm
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Steinheil Quarzobjektiv f1.8/50mm
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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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56 DIN
Joined: 24 Apr 2010
Posts: 1656
Location: Germany Erbach /ODW
Expire: 2021-11-18
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| Posted: Mon Nov 14, 2016 4:28 pm Post subject: |
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56 DIN wrote:
haha... your single teddy got afraid with all the bubbles, so you gave him a friend....
about bubblemania - I have the impression, that these bubbles are smaller than the ones from photo lens?
I know it depends on background light, distance, etc, but still it think that
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NEX & manual lenses
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miran
Joined: 01 Aug 2012
Posts: 1364
Location: Slovenia
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| Posted: Mon Nov 14, 2016 4:47 pm Post subject: |
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miran wrote:
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Attila
Joined: 24 Feb 2007
Posts: 57849
Location: Hungary
Expire: 2025-11-18
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| Posted: Tue Nov 15, 2016 6:09 am Post subject: |
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Attila wrote:
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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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chudy128314
Joined: 09 Oct 2015
Posts: 321
Location: Wrocław, Poland
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| Posted: Tue Nov 15, 2016 7:38 am Post subject: |
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chudy128314 wrote:
| 56 DIN wrote: |
about bubblemania - I have the impression, that these bubbles are smaller than the ones from photo lens?
I know it depends on background light, distance, etc, but still it think that |
I always thought that the size of bubbles was only a result of focal length, aperture and distance. Could anybody provide any theoretical deliberation? |
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