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gunjamed
Joined: 18 May 2019
Posts: 4
Location: Singapore
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 Posted: Sat May 18, 2019 5:10 am Post subject: Canon FD 35mm f/3.5 disassembly |
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gunjamed wrote:
Hi guys, I'm new to this forum and it's my first post. Appreciate any help that i can get.
I've recently gotten an FD 35mm f/3.5 breechlock lens that has haze in it. I've tried looking on google but it seems not a lot of people have this lens.
Was wondering how i can remove the nameplate? It seems like the only way to do it is to unscrew it. Is that correct? |
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fdlenses
Joined: 15 Mar 2017
Posts: 57
Location: Germany
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| Posted: Sun May 19, 2019 11:24 am Post subject: |
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fdlenses wrote:
Do you have a "FD 35mm 1:3.5" (chrome nose, no "S.C." marking) or a "FD 35mm 1:3.5 S.C." lens? Both are breech lock lenses.
For the chrome nose version I can confirm that the name plate screws out. For the "S.C." version I don't know for sure. But with other breech lock "S.C." lenses (e.g. FD 50mm 1:1.8 S.C., FD 28mm 1:2.8 S.C.) the name plate is clipped and glued.
Smartphone repair toolkits offer a handy selection of plastic tools for prying out name plates. I have had success breaking loose the glue by turning the name plate with a rubber wrench (requires quite some force). Applying a drop or two of a solvent (e.g. Naphtha or Windex) between the name plate and the filter thread may also help.
Be aware that cleaning inner lens elements is a delicate job. The coating of inner lenses is a lot softer than the outer elements' coatings and is scratched very easily even by a very gentle wipe. During disassembly mark the original position of all parts. |
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gunjamed
Joined: 18 May 2019
Posts: 4
Location: Singapore
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| Posted: Sun May 19, 2019 4:13 pm Post subject: |
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gunjamed wrote:
I believe mine is the chrome nose version as it does not have any S.C. marking.
Okay now that i know it screws out, what is the best way for me to do it? I tried doing it by hand but obviously the plate is very tightly screwed in. Do i have to go out and buy some rubber mat and put some plastic tube on it? Is there a better way?
Thanks in advance. |
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visualopsins
Joined: 05 Mar 2009
Posts: 10543
Location: California
Expire: 2025-04-11
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| Posted: Sun May 19, 2019 4:26 pm Post subject: |
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visualopsins wrote:
Welcome gun jammed
Yes, rubber dam with plastic tube, or rubber sink plug, or proper tool such as 
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Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
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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 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)
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Sciolist
Joined: 29 Mar 2017
Posts: 1445
Location: Scotland
Expire: 2021-04-16
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| Posted: Sun May 19, 2019 5:10 pm Post subject: |
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Sciolist wrote:
| gunjamed wrote: |
I believe mine is the chrome nose version as it does not have any S.C. marking.
Okay now that i know it screws out, what is the best way for me to do it? I tried doing it by hand but obviously the plate is very tightly screwed in. Do i have to go out and buy some rubber mat and put some plastic tube on it? Is there a better way?
Thanks in advance. |
Is there a pair of rubber washing-up gloves under the kitchen sink? Put them on, put a thumb either side of the name ring and turn anti-clockwise.
Then later purchase some proper tools per visualopsins.
If nothing works (you shouldn't be forcing anything), you can usually drop some wd40 between the name ring and the lens barrel. That's where the threads are. Do not spray the wd40 in. I spray into the cap then dip a Q-tip in to it, and roll that around the edge of the name ring. Were talking very small amounts. Give it a couple of days to work through, trying from time to time. |
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gunjamed
Joined: 18 May 2019
Posts: 4
Location: Singapore
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| Posted: Sun May 19, 2019 5:59 pm Post subject: |
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gunjamed wrote:
Alright thank you for the advice, i will try it and will get back to you guys. Unfortunately it's 2am here and will try tomorrow when there is more daylight. |
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Gardener
Joined: 22 Sep 2013
Posts: 950
Location: USA
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| Posted: Mon May 20, 2019 6:47 pm Post subject: |
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Gardener wrote:
If it's a breech-lock mount lens the name plate should be threaded. However, every once in a while I run into a Canon on which the name plate simply won't budge, no matter what I do. |
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gunjamed
Joined: 18 May 2019
Posts: 4
Location: Singapore
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| Posted: Wed May 22, 2019 3:18 pm Post subject: |
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gunjamed wrote:
this thing is not budging at all! rubber gloves didn't do the trick, i have a cylinder which is a good size for the name plate and it also wouldn't budge! I'm wondering if this thing would move at all
#1
this is the lens, am i mistaken on what i said above? |
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kiddo
Joined: 29 Jun 2018
Posts: 1123
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| Posted: Mon Jun 03, 2019 12:47 am Post subject: |
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kiddo wrote:
I've got a 135 nFD which there was no way to remove that same front ring. Finally, I made to little holes with Dremel on the opposite sides. This lens was in bad shape ,so I didn't care much. Try with wd40 for some days, might need some patience , if still don't work , with a soldering iron tip ,try to heat it up, might loose finally. It's a nice lens, so better treat it with patience. |
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kiddo
Joined: 29 Jun 2018
Posts: 1123
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| Posted: Mon Jun 03, 2019 12:50 am Post subject: |
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kiddo wrote:
Regarding the haze, if normal cleaning won't take it if, might try cerium oxide. I've read about a guy (profesional ) that is using it like the last alternative to remove haze. I'll try to get some asap, and test it. |
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