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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15679
Expire: 2014-01-07
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Posted: Sun Nov 01, 2015 12:25 pm Post subject: C Mount adapter issue |
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iangreenhalgh1 wrote:
Hi folks
With both my G3 and GF3 I am having an issue where c mount adapters won't work - it gives me a black screen and I can't take a picture, but as soon as I remove the adapter from the camera, it works again.
Seems to me that the adapter is pushing down the electrical pins in the bottom half of the camera and due to this the camera won't function properly.
So is there a workaround for this? Am I going to have to get the Dremel out and grind a trough into the adapter so it clears the pins? _________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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walter g
Joined: 20 Feb 2010 Posts: 2463 Location: NC, USA
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Posted: Sun Nov 01, 2015 11:15 pm Post subject: |
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walter g wrote:
Ian, check the hole for the lock pin. The lock pin has to fully release .
Sometimes on c mount adapters the hole isn't deep enough or shaped wrong. _________________
Main cameras
Panasonic G5,Nikon J1,Pentax Q10,Sony Nex 6
Minolta MC W SI 2.5/28, MD 2.8/28, MC W SG 3.5/28, MC Celtic 3.5/28, MC W HG 2.8/35, MD Celtic 2.8/35, QE 4/35, Rokkor X 2/45, MC Rokkor X PG 1.4/50, MC Rokkor X PG 1.7/50, MD Rokkor X 1.7/50, MD 2/50, MC Rokkor PF 1.7/55, MC Rokkor PF 1.9/55, Auto Tele Rokkor PG 2.8/135, MC Tele Rokkor QD 3.5/135, TC 4/135, MC Celtic 4/200, MC Tele Rokkor PE 4.5/200
MD 28-70 f3.5-4.8, MD Macro 35-70 f3.5, Md 70-210 f4, MD Rokkor X 75-200 f4.5, MD 100-200 f5.6
Nikon Nikkor 4/20, O Auto 2/35, S Auto 1.4/50..... Miranda Auto 2.8/28, Auto 2.8/35, Auto 1.4/50, Auto EC 1.4/50, Auto 1.8/50, Auto EC 1.8/50,Auto 1.9/50, Auto 3.5/135
Various Soligor,Sun,Fujita,Komura,Spitatone, etc. Lenses
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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15679
Expire: 2014-01-07
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Posted: Sun Nov 01, 2015 11:41 pm Post subject: |
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iangreenhalgh1 wrote:
The hole in this one is all the way through. The issue starts before you've even rotated the lens at all to lock it. _________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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visualopsins
Joined: 05 Mar 2009 Posts: 10688 Location: California
Expire: 2025-04-11
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Posted: Mon Nov 02, 2015 12:07 am Post subject: |
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visualopsins wrote:
A piece of electrical tape (or layer of paint) on adapter to insulate? _________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ 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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walter g
Joined: 20 Feb 2010 Posts: 2463 Location: NC, USA
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Posted: Mon Nov 02, 2015 1:53 am Post subject: |
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walter g wrote:
iangreenhalgh1 wrote: |
The hole in this one is all the way through. The issue starts before you've even rotated the lens at all to lock it. |
What issue? Do you feel abnormal dragging?
If you mount an adapter and lens with the camera on, the screen wont show an image until the adapter locks.
You will only get an image if the lock pin on the camera fully releases.
If the hole on the adapter is missdrilled it binds the pin.
Please post a pic of both sides of the adapter. _________________
Main cameras
Panasonic G5,Nikon J1,Pentax Q10,Sony Nex 6
Minolta MC W SI 2.5/28, MD 2.8/28, MC W SG 3.5/28, MC Celtic 3.5/28, MC W HG 2.8/35, MD Celtic 2.8/35, QE 4/35, Rokkor X 2/45, MC Rokkor X PG 1.4/50, MC Rokkor X PG 1.7/50, MD Rokkor X 1.7/50, MD 2/50, MC Rokkor PF 1.7/55, MC Rokkor PF 1.9/55, Auto Tele Rokkor PG 2.8/135, MC Tele Rokkor QD 3.5/135, TC 4/135, MC Celtic 4/200, MC Tele Rokkor PE 4.5/200
MD 28-70 f3.5-4.8, MD Macro 35-70 f3.5, Md 70-210 f4, MD Rokkor X 75-200 f4.5, MD 100-200 f5.6
Nikon Nikkor 4/20, O Auto 2/35, S Auto 1.4/50..... Miranda Auto 2.8/28, Auto 2.8/35, Auto 1.4/50, Auto EC 1.4/50, Auto 1.8/50, Auto EC 1.8/50,Auto 1.9/50, Auto 3.5/135
Various Soligor,Sun,Fujita,Komura,Spitatone, etc. Lenses
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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15679
Expire: 2014-01-07
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Posted: Mon Nov 02, 2015 2:30 am Post subject: |
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iangreenhalgh1 wrote:
No, you always get an image, even when there is no lens on the camera and the pin isn't depressed. It is when the adapter touches the electrical pins that the image cuts out.
I'll make a little video showing what's happening. _________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15679
Expire: 2014-01-07
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Posted: Mon Nov 02, 2015 2:32 am Post subject: |
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iangreenhalgh1 wrote:
visualopsins wrote: |
A piece of electrical tape (or layer of paint) on adapter to insulate? |
I can certainly try that, good idea! _________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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SXR_Mark
Joined: 12 Jun 2010 Posts: 506 Location: England
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Posted: Mon Nov 02, 2015 5:14 pm Post subject: |
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SXR_Mark wrote:
walter g wrote: |
If you mount an adapter and lens with the camera on, the screen wont show an image until the adapter locks.
You will only get an image if the lock pin on the camera fully releases.
If the hole on the adapter is missdrilled it binds the pin.
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Yes, my guess is that this is what is happening. I have had this on a few adapters.
iangreenhalgh1 wrote: |
No, you always get an image, even when there is no lens on the camera and the pin isn't depressed. |
Exactly. the lock pin must not be in any way depressed (even by a small amount) for the image to show. So when you put the adapter on, but the lock pin doesn't extend fully into the notch, the image does not show. _________________ Olympus OM-D E-M1 for everything |
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Nordentro
Joined: 24 Jun 2010 Posts: 4710 Location: Lillehammer, Norway
Expire: 2015-01-29
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Posted: Mon Nov 02, 2015 7:15 pm Post subject: |
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Nordentro wrote:
I`ve had this issue to, and it was the pin _________________ Lars | Manuellfokus.no |
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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15679
Expire: 2014-01-07
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Posted: Mon Nov 02, 2015 10:10 pm Post subject: |
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iangreenhalgh1 wrote:
Hmm, I'm confused, the adapter has a hole all the way through for the pin and you don't get an image if the pin is in that hole or not - being a hole all the way through, you can see if the pin is engaged or not.
I was going to make a video but a neighbour had a fire in her kitchen so I ended up helping her out all day instead.
Hopefully tomorrow.
Thanks for the help. _________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15679
Expire: 2014-01-07
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Posted: Fri Nov 06, 2015 10:39 pm Post subject: |
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iangreenhalgh1 wrote:
Well, it works now. It was that damn pin. The adapter wasn't blocking it but the pin itself was somewhat sticky in it's movement. Wiggling it a bit seems to have freed it up and all is now fine.
Thanks for the help guys, much appreciated.
Fujinon-TV 1.4/50:
_________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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walter g
Joined: 20 Feb 2010 Posts: 2463 Location: NC, USA
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Posted: Sat Nov 07, 2015 1:57 am Post subject: |
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walter g wrote:
Slightly off topic, but I've tried two different adapters with my Fujinon TV 1/4 50.
The thin adapter I get 6 feet maximum focus distance at f1.4.
The adapter with the rim I get 10 feet at f1.4. _________________
Main cameras
Panasonic G5,Nikon J1,Pentax Q10,Sony Nex 6
Minolta MC W SI 2.5/28, MD 2.8/28, MC W SG 3.5/28, MC Celtic 3.5/28, MC W HG 2.8/35, MD Celtic 2.8/35, QE 4/35, Rokkor X 2/45, MC Rokkor X PG 1.4/50, MC Rokkor X PG 1.7/50, MD Rokkor X 1.7/50, MD 2/50, MC Rokkor PF 1.7/55, MC Rokkor PF 1.9/55, Auto Tele Rokkor PG 2.8/135, MC Tele Rokkor QD 3.5/135, TC 4/135, MC Celtic 4/200, MC Tele Rokkor PE 4.5/200
MD 28-70 f3.5-4.8, MD Macro 35-70 f3.5, Md 70-210 f4, MD Rokkor X 75-200 f4.5, MD 100-200 f5.6
Nikon Nikkor 4/20, O Auto 2/35, S Auto 1.4/50..... Miranda Auto 2.8/28, Auto 2.8/35, Auto 1.4/50, Auto EC 1.4/50, Auto 1.8/50, Auto EC 1.8/50,Auto 1.9/50, Auto 3.5/135
Various Soligor,Sun,Fujita,Komura,Spitatone, etc. Lenses
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visualopsins
Joined: 05 Mar 2009 Posts: 10688 Location: California
Expire: 2025-04-11
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Posted: Sat Nov 07, 2015 5:05 pm Post subject: |
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visualopsins wrote:
walter g wrote: |
Slightly off topic, but I've tried two different adapters with my Fujinon TV 1/4 50.
The thin adapter I get 6 feet maximum focus distance at f1.4.
The adapter with the rim I get 10 feet at f1.4. |
shim to make adapter thicker _________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ 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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SXR_Mark
Joined: 12 Jun 2010 Posts: 506 Location: England
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Posted: Sat Nov 07, 2015 5:22 pm Post subject: |
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SXR_Mark wrote:
visualopsins wrote: |
walter g wrote: |
Slightly off topic, but I've tried two different adapters with my Fujinon TV 1/4 50.
The thin adapter I get 6 feet maximum focus distance at f1.4.
The adapter with the rim I get 10 feet at f1.4. |
shim to make adapter thicker |
That would make things worse (reduce maximum focus distance).
I machined the back of my Fujinon to get infinity focus.
Mark _________________ Olympus OM-D E-M1 for everything |
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visualopsins
Joined: 05 Mar 2009 Posts: 10688 Location: California
Expire: 2025-04-11
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Posted: Sun Nov 08, 2015 12:28 am Post subject: |
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visualopsins wrote:
SXR_Mark wrote: |
visualopsins wrote: |
walter g wrote: |
Slightly off topic, but I've tried two different adapters with my Fujinon TV 1/4 50.
The thin adapter I get 6 feet maximum focus distance at f1.4.
The adapter with the rim I get 10 feet at f1.4. |
shim to make adapter thicker |
That would make things worse (reduce maximum focus distance).
I machined the back of my Fujinon to get infinity focus.
Mark |
Oops! I was wrong...
_________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ 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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walter g
Joined: 20 Feb 2010 Posts: 2463 Location: NC, USA
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Posted: Sun Nov 08, 2015 12:39 pm Post subject: |
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walter g wrote:
SXR_Mark wrote: |
visualopsins wrote: |
walter g wrote: |
Slightly off topic, but I've tried two different adapters with my Fujinon TV 1/4 50.
The thin adapter I get 6 feet maximum focus distance at f1.4.
The adapter with the rim I get 10 feet at f1.4. |
shim to make adapter thicker |
That would make things worse (reduce maximum focus distance).
I machined the back of my Fujinon to get infinity focus.
Mark |
The other option is to unscrew the rear ring that holds the mount on, and glue the mount on.
Not sure which im going to do. _________________
Main cameras
Panasonic G5,Nikon J1,Pentax Q10,Sony Nex 6
Minolta MC W SI 2.5/28, MD 2.8/28, MC W SG 3.5/28, MC Celtic 3.5/28, MC W HG 2.8/35, MD Celtic 2.8/35, QE 4/35, Rokkor X 2/45, MC Rokkor X PG 1.4/50, MC Rokkor X PG 1.7/50, MD Rokkor X 1.7/50, MD 2/50, MC Rokkor PF 1.7/55, MC Rokkor PF 1.9/55, Auto Tele Rokkor PG 2.8/135, MC Tele Rokkor QD 3.5/135, TC 4/135, MC Celtic 4/200, MC Tele Rokkor PE 4.5/200
MD 28-70 f3.5-4.8, MD Macro 35-70 f3.5, Md 70-210 f4, MD Rokkor X 75-200 f4.5, MD 100-200 f5.6
Nikon Nikkor 4/20, O Auto 2/35, S Auto 1.4/50..... Miranda Auto 2.8/28, Auto 2.8/35, Auto 1.4/50, Auto EC 1.4/50, Auto 1.8/50, Auto EC 1.8/50,Auto 1.9/50, Auto 3.5/135
Various Soligor,Sun,Fujita,Komura,Spitatone, etc. Lenses
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