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assaf
Joined: 02 Mar 2010
Posts: 26
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 Posted: Tue Aug 03, 2010 3:22 pm Post subject: Can you identify this lens mount, about 30mm diameter? |
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assaf wrote:
Possibly a Sony camcorder mount (the lens says for S.V. Color).
Can it be adapted to m4/3?
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Panasonic DMC-G1, DMC-GF1
m4/3: 14-45/3.5-5.6, 20/1.7
Konica AR: Konica Hexanon 50/1.7, Konica Hexanon 40/1.8, Vivitar 135/2.8, Vivitar 200/3.5
M42: CZJ Pancolar 50/1.8 Zebra, Helios 44M 58/2
Minlota MD: Minolta 28/2.8
C: Cosmicar 12.5/1.9
wishlist: Fast zoom
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visualopsins
Joined: 05 Mar 2009
Posts: 11012
Location: California
Expire: 2025-04-11
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| Posted: Fri Aug 06, 2010 4:47 am Post subject: |
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visualopsins wrote:
Hi assaf, please tell us if the mount is screw-on or bayonet? If a screw-on type, could it be the 1-inch C-mount, 1-inch = 25.4mm? Posting a photo would help.
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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calvin83
Joined: 12 Apr 2009
Posts: 7560
Location: Hong Kong
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| Posted: Fri Aug 06, 2010 4:58 am Post subject: |
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calvin83 wrote:
Probably an add-on lens for camcorder. A photo would help.
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assaf
Joined: 02 Mar 2010
Posts: 26
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| Posted: Sun Aug 08, 2010 12:06 pm Post subject: |
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assaf wrote:
It's a screw mount.
It has a hollow tube about 15mm deep until the back element
On the outside (the lens cap sits on this) there are only two threads. The outside diameter is quite bigger than the 1" c-mount. At least 2-3mm bigger.
On the inside there are many threads, maybe this is a female connector. Looking inside the tube it's hard to tell but it looks like i can see some glue. Maybe this part was glued on a different mount?
I'll try to get some photos.
_________________
Panasonic DMC-G1, DMC-GF1
m4/3: 14-45/3.5-5.6, 20/1.7
Konica AR: Konica Hexanon 50/1.7, Konica Hexanon 40/1.8, Vivitar 135/2.8, Vivitar 200/3.5
M42: CZJ Pancolar 50/1.8 Zebra, Helios 44M 58/2
Minlota MD: Minolta 28/2.8
C: Cosmicar 12.5/1.9
wishlist: Fast zoom
flickr |
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visualopsins
Joined: 05 Mar 2009
Posts: 11012
Location: California
Expire: 2025-04-11
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| Posted: Sun Aug 08, 2010 12:40 pm Post subject: |
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visualopsins wrote:
Does lens have aperture diaphragm inside?
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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assaf
Joined: 02 Mar 2010
Posts: 26
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| Posted: Sun Aug 08, 2010 3:30 pm Post subject: |
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assaf wrote:
Yes. The lens goes from f/2.5 to f/22 and fully closed.
It is a "Minolta TV Zoom Rokkor 4Vx20 1:2.5 20-80mm for S.V. Color"
_________________
Panasonic DMC-G1, DMC-GF1
m4/3: 14-45/3.5-5.6, 20/1.7
Konica AR: Konica Hexanon 50/1.7, Konica Hexanon 40/1.8, Vivitar 135/2.8, Vivitar 200/3.5
M42: CZJ Pancolar 50/1.8 Zebra, Helios 44M 58/2
Minlota MD: Minolta 28/2.8
C: Cosmicar 12.5/1.9
wishlist: Fast zoom
flickr |
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assaf
Joined: 02 Mar 2010
Posts: 26
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| Posted: Sun Aug 08, 2010 3:52 pm Post subject: |
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assaf wrote:
The inside of the tube, with something that could be a thread, and the depth until the back element
From the side, you can see the very short outer thread
I wonder what would happen if I remove these little screws...
_________________
Panasonic DMC-G1, DMC-GF1
m4/3: 14-45/3.5-5.6, 20/1.7
Konica AR: Konica Hexanon 50/1.7, Konica Hexanon 40/1.8, Vivitar 135/2.8, Vivitar 200/3.5
M42: CZJ Pancolar 50/1.8 Zebra, Helios 44M 58/2
Minlota MD: Minolta 28/2.8
C: Cosmicar 12.5/1.9
wishlist: Fast zoom
flickr |
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visualopsins
Joined: 05 Mar 2009
Posts: 11012
Location: California
Expire: 2025-04-11
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| Posted: Sun Aug 08, 2010 6:44 pm Post subject: |
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visualopsins wrote:
Found this Click here to see on Ebay; that you? 
Description says c-mount but in second photo mount is clearly bigger than others that are c-mount.
May be a lens for older camcorder with separate camera & recorder like Nikon S-100.
The larger-than-c thread & slower f/2.5 lead me to believe the image circle is larger than c-mount; have you tried hand-holding lens to camera to check? If that works, with an accurate measurement of the thread & thickness needed for infinity focus on 4/3, an adapter can be made, perhaps from a 4/3 extension tube.
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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assaf
Joined: 02 Mar 2010
Posts: 26
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| Posted: Wed Aug 11, 2010 6:28 am Post subject: |
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assaf wrote:
Not me, but it's the same lens.
I think I saw somewhere a Sony lens with the same specs attached to a Sony camcorder, but I can't find it anymore.
I tried the hand holding, but only saw the image when my hand is practically on the mount. It is pretty small - much smaller than my 35mm lens - but I haven't compared it to m4/3 yet.
If it is a camcorder lens then I would not have high hopes for a big image circle or resolution.
_________________
Panasonic DMC-G1, DMC-GF1
m4/3: 14-45/3.5-5.6, 20/1.7
Konica AR: Konica Hexanon 50/1.7, Konica Hexanon 40/1.8, Vivitar 135/2.8, Vivitar 200/3.5
M42: CZJ Pancolar 50/1.8 Zebra, Helios 44M 58/2
Minlota MD: Minolta 28/2.8
C: Cosmicar 12.5/1.9
wishlist: Fast zoom
flickr |
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