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ForenSeil
Joined: 15 Apr 2011
Posts: 2726
Location: Kiel, Germany.
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 Posted: Sun Sep 09, 2012 1:39 am Post subject: Is there a way to make focus/aperture rings more stiff? |
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ForenSeil wrote:
Anyone experience with that?
I've bought a Jupiter-8 in good condition but it's not easy to to handle as the rings (especially the aperture ring) a somewhat easy to move. Any Idea? I thought about relubing and adding some artificial candle wax.
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I'm not a collector, I'm a tester 
My camera: Sony A7+Zeiss Sonnar 55/1.8
Current favourite lenses (I have many more):
A few macro-Tominons, Samyang 12/2.8, Noritsu 50.7/9.5, Rodagon 105/5.6 on bellows, Samyang 135/2, Nikon ED 180/2.8, Leitz Elmar-R 250/4, Celestron C8 2000mm F10
Most wanted: Samyang 24/1.4, Samyang 35/1.4, Nikon 200/2 ED
My Blog: http://picturechemistry.own-blog.com/
(German language) |
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Oreste
Joined: 08 Sep 2012
Posts: 451
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| Posted: Sun Sep 09, 2012 2:00 am Post subject: |
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Oreste wrote:
Stiffer? Maybe talk to a technician |
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themoleman342
Joined: 21 Oct 2007
Posts: 2190
Location: East Coast (CT), U.S.A.
Expire: 2013-01-24
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| Posted: Sun Sep 09, 2012 2:12 am Post subject: |
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themoleman342 wrote:
Just use a thicker, heavier grade grease. Just has to have the properties of any good helical grease - no separation under hot/cold conditions. |
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visualopsins
Joined: 05 Mar 2009
Posts: 10961
Location: California
Expire: 2025-04-11
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| Posted: Sun Sep 09, 2012 2:32 am Post subject: |
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visualopsins wrote:
Adjust quantity/viscosity of focus ring grease. Usual problem is too much grease makes ring difficult to turn.
Aperture ring maybe mechanics is loose; tighten screws. Worn is more difficult; shims maybe help.
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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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Lightshow
Joined: 04 Nov 2011
Posts: 3666
Location: Calgary
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| Posted: Sun Sep 09, 2012 6:38 am Post subject: Re: Is there a way to make focus/aperture rings more stiff? |
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Lightshow wrote:
| ForenSeil wrote: |
Anyone experience with that?
I've bought a Jupiter-8 in good condition but it's not easy to to handle as the rings (especially the aperture ring) a somewhat easy to move. Any Idea? I thought about relubing and adding some artificial candle wax. |
Are you talking about the preset ring with the detent's? or the smooth one?
The smooth one typically moves quite easily, the other could be worn down or lose, at any rate, adding thicker grease will help.
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JohnBar
Joined: 21 Jun 2012
Posts: 581
Location: Liverpool
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| Posted: Sun Sep 09, 2012 9:10 am Post subject: |
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JohnBar wrote:
To stiffen a focus ring, use RC Model Servo grease on the helicoid. Cost for a small tube is a few coins on ebay.
Servo grease will not seperate under 200 deg C
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ForenSeil
Joined: 15 Apr 2011
Posts: 2726
Location: Kiel, Germany.
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| Posted: Mon Sep 10, 2012 2:29 am Post subject: |
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ForenSeil wrote:
The ring doesn't have any detents
| JohnBar wrote: |
To stiffen a focus ring, use RC Model Servo grease on the helicoid. Cost for a small tube is a few coins on ebay.
Servo grease will not seperate under 200 deg C |
Thx for the tip!
_________________
I'm not a collector, I'm a tester
My camera: Sony A7+Zeiss Sonnar 55/1.8
Current favourite lenses (I have many more):
A few macro-Tominons, Samyang 12/2.8, Noritsu 50.7/9.5, Rodagon 105/5.6 on bellows, Samyang 135/2, Nikon ED 180/2.8, Leitz Elmar-R 250/4, Celestron C8 2000mm F10
Most wanted: Samyang 24/1.4, Samyang 35/1.4, Nikon 200/2 ED
My Blog: http://picturechemistry.own-blog.com/
(German language) |
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