View previous topic :: View next topic |
Author |
Message |
kuato
Joined: 10 Feb 2015 Posts: 47
|
Posted: Thu Apr 06, 2017 5:45 pm Post subject: Meyer Gorlitz aperture adjustment (Trioplan, Primoplan) |
|
|
kuato wrote:
I'm servicing a Primoplan 75mm and having the same issue with the aperture out of place. Posting this here hoping someone has encountered this and can assist.
Bernard wrote: |
Hi there,
Need help. I have just purchased a Meyer Optik Gorlitz Trioplan 100mm f2.8 red V (M42) from eBay.
The aperture arrow on the barrel does not align to its respective values.
I decided to take the lens apart and fix it however I am stuck at the aperture barrel section and unable proceed further. I have taken some pictures of it.
Aperture placeholder A : I am unable to remove the retaining screw as the screw head is on the other side. Therefore i cannot remove the Aperture placeholder A.
Aperture placeholder B : I have removed the screw but unable to unscrew/pull the barrel apart.
Does anyone knows how to open this up?
Thanks !
|
|
|
Back to top |
|
|
visualopsins
Joined: 05 Mar 2009 Posts: 10463 Location: California
Expire: 2021-06-22
|
Posted: Tue Sep 05, 2017 6:41 pm Post subject: |
|
|
visualopsins wrote:
You fix already? Please tell us how? _________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony A7Rii, Spotmatics II, F, and ESII, Nikon P4
M42 Asahi Optical Co., Lenses:
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
Other lenses:
Carl Zeiss Jena Flektogon 2.4/35
SMC PENTAX 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 (51BB), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto
|
|
Back to top |
|
|
kuato
Joined: 10 Feb 2015 Posts: 47
|
Posted: Tue Sep 05, 2017 7:02 pm Post subject: |
|
|
kuato wrote:
I wasn't able to figure out how to remove the aperture barrel, so I just (very carefully) soaked the aperture in naphtha and wiped the blades a number of times until I got all the oil out. It was a slow and tedious process, but it did the job. |
|
Back to top |
|
|
visualopsins
Joined: 05 Mar 2009 Posts: 10463 Location: California
Expire: 2021-06-22
|
Posted: Tue Sep 05, 2017 7:45 pm Post subject: |
|
|
visualopsins wrote:
So we still don't know how to realign the rings to make scale read correct? _________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony A7Rii, Spotmatics II, F, and ESII, Nikon P4
M42 Asahi Optical Co., Lenses:
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
Other lenses:
Carl Zeiss Jena Flektogon 2.4/35
SMC PENTAX 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 (51BB), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto
|
|
Back to top |
|
|
Lightshow
Joined: 04 Nov 2011 Posts: 3669 Location: Calgary
|
Posted: Tue Sep 05, 2017 8:10 pm Post subject: |
|
|
Lightshow wrote:
What may have happened is that the aperture assembly has shifted in it's clocking(rotated), a loose set screw(s).
The aperture assembly is basically 3 parts, the basket(as I call it, is the 1st part)it basically holds all the blades(the 2nd part), and the disk(3rd part), parts 1 & 3 enclose the blades, one is typically fixed in position, the other is attached to the aperture ring either directly, or through some fancy arrangement that may include the aperture lever in auto lenses, the part that was meant to stay in place has likely shifted due to a loose set screw(s), you have to figure out which part(1 or 3) is stationary.
In this case it looks like "Placeholder B" is stationary, "Placeholder A" looks like it's directly attached to the aperture ring with a long screw, IME there is no adjustment here, in the last picture "Placeholder B" has it's "screw removed" I assume to free up "Placeholder B" to turn it clockwise? when looking at it from the rear.
Trying to figure out how a lens comes apart with vague pictures is like trying to solve a Rubik's Cube from pictures.
Submit your own pictures if you can. _________________ A Manual Focus Junky...
One photographers junk lens is an artists favorite tool.
My lens list
http://www.flickr.com/photos/lightshow-photography/ |
|
Back to top |
|
|
|
|
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
|