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ludoo
Joined: 18 Sep 2009 Posts: 1397 Location: Milan, Italy
Expire: 2011-12-05
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Posted: Thu Feb 18, 2010 11:52 pm Post subject: Cleaning glass |
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ludoo wrote:
I just finished removing fungus from the newly arrived SCM Takumar 55 1.8, using Mal1905's excellent guide. The problem is that as walways, I am unable to properly clean the glass surfaces: whatever I do I can see translucent streaks on the coating, and/or smudges.
Searching on google, I found this guide that seems well done, so tomorrow I'll dismount the lens again and try to soak the element in distilled water+wetting agent, then clean them with acetone (that's assuming I find some pure one).
Any other things I should try? How do you clean lens elements?
Last edited by ludoo on Fri Feb 19, 2010 12:20 am; edited 1 time in total |
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Attila
Joined: 24 Feb 2007 Posts: 57840 Location: Hungary
Expire: 2021-11-18
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Posted: Fri Feb 19, 2010 12:19 am Post subject: |
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Attila wrote:
Not all lens surface cleanable successfully, some of them unclean-able even with strongest chemicals. If you can't clean with acetone I am afraid it will not work with anything else too. _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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indianadinos
Joined: 06 Jul 2008 Posts: 1310 Location: Toulouse, France
Expire: 2011-12-05
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Posted: Fri Feb 19, 2010 12:38 am Post subject: Re: Cleaning glass |
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indianadinos wrote:
Hi,
ludoo wrote: |
(that's assuming I find some pure one). |
Good luck ...
ludoo wrote: |
Any other things I should try? How do you clean lens elements? |
Have you tried some cold cream ? I use Avene's one (but you can use whatever brand is available in your nearest store), some Zippo fluid with q-tips for removing the cream, and finally some optical cleaning fluid to remove the Zippo fluid deposits ...
Hope this helps, but keep in mind that, as Attila said, not all lenses may be successfully cleaned ...
Cheers _________________ Please visit my blogs Shooting with a Pentax K10D / FF Visions
Takumar: 24/3.5, 28/3.5, 35/2, 35/3.5, 50/1.4, 55/1.8, 85/1.8, 105/2.8, 120/2.8, 135/3.5, 150/4, 200/4
Pentax-K: M28/2.8, K28/3.5, M50/1.4, A50/1.7, M50/4 Macro, K85/1.8, K105/2.8, K135/2.5, M200/4, M70-150/4
Zeiss: Flektogon 20/2.8, 20/4, 35/2.4, 35/2.8, Tessar 50/2.8, Pancolar 50/1.8, Biotar 58/2, Sonnar 135/3.5, Sonnar 180/2.8
Meyer: Primagon 35/4.5, Domiplan 50/2.8, Oreston 50/1.8, Primoplan 58/1.9, Trioplan 100/2.8, Orestor 100/2.8, Orestor 135/2.8
Schacht/Steinheil: Travenar 90/2.8, Travenon 135/4.5, Quinar 135/2.8, Quinar 135/3.5
Russian: MIR 37B, Industar 50/3.5, Helios 44M & 44M-2, Jupiter 37A
P6: Flektogon 50/4, Biometar 80/2.8, Orestor 300/4
Nikkor: Nikkor-O 35/2, Micro 55/3.5, Nikkor-S 50/1.4, Nikkor-Q 135/2.8
Fuji: EBC 28/3.5, EBC 55/3.5 Macro, EBC 135/2.5
Misc Lenses: Kiron 105/2.8 Macro, Tamron SP90/2.5
... and a few other Vivitar, Tamron, Sigma and Soligor lenses ...
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mo
Joined: 27 Aug 2009 Posts: 8982 Location: Australia
Expire: 2016-07-30
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Posted: Fri Feb 19, 2010 1:19 am Post subject: |
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mo wrote:
Can I ask what about just the edges of the lens...I mean I have some lenses that I do not want to take out and clean the whole lens just where it meets the glass and metal rim there seems to be a bit of debris would lighter fluid and a Q tip do the trick?
I have used the micro fiber cloth but it just can't get into the fine gap/edge of the front or back lens and they don't really need to be taken apart fully. _________________ Moira, Moderator
Fuji XE-1,Pentax K-01,Panasonic G1,Panasonic G5,Pentax MX
Ricoh Singlex TLS,KR-5,KR-5Super,XR-10
Lenses
Auto Rikenon's 55/1.4, 1.8, 2.8... 50/1.7 Takumar 2/58 Preset Takumar 2.8/105 Auto Takumar 2.2/55, 3.5/35 Super Takumar 1.8/55...Macro Takumar F4/50... CZJ Biotar ALU M42 2/58 CZJ Tessar ALU M42 2.8/50
CZJ DDR Flektogon Zebra M42 2.8/35 CZJ Pancolar M42 2/50 CZJ Pancolar Exakta 2/50
Auto Mamiya/Sekor 1.8/55 ...Auto Mamiya/Sekor 2/50 Auto Mamiya/Sekor 2.8/50 Auto Mamiya/Sekor 200/3.5 Tamron SP500/8 Tamron SP350/5.6 Tamron SP90/2.5
Primoplan 1.9/58 Primagon 4.5/35 Telemegor 5.5/150 Angenieux 3.5/28 Angenieux 3,5/135 Y 2
Canon FL 58/1.2,Canon FL85/1.8,Canon FL 100/3.5,Canon SSC 2.8/100 ,Konica AR 100/2.8, Nikkor P 105/2.5
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ludoo
Joined: 18 Sep 2009 Posts: 1397 Location: Milan, Italy
Expire: 2011-12-05
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Posted: Fri Feb 19, 2010 7:31 am Post subject: Re: Cleaning glass |
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ludoo wrote:
indianadinos wrote: |
Have you tried some cold cream ? I use Avene's one (but you can use whatever brand is available in your nearest store), some Zippo fluid with q-tips for removing the cream, and finally some optical cleaning fluid to remove the Zippo fluid deposits ... |
That's exactly what I did. If I angle the lens towards the light I can see translucent streaks. |
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unclemack
Joined: 21 Jun 2009 Posts: 51 Location: UK frozen north
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Posted: Fri Feb 19, 2010 2:57 pm Post subject: |
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unclemack wrote:
To clean into the edge of the glass I use the stick of a Q-tip cut to a shallow angle and a microfibre cloth. Slightly moisten the cloth & use the point of the Q-tip to push it gently into the corners, then repeat with a dry part of the cloth.
For cleaning elements I use 4 or 5 small tupperware type containers. The first bath is detergent, where a clean wet microfibre cloth is used - gently! - to wipe the glass, followed by distilled water baths holding only the edges of the glass. After the last bath the glass is clean. I dry it fast with a filtered air-line. This avoids any marks whatever.
In over 20 years I've rarely needed to use any stronger solvent on glass. |
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mo
Joined: 27 Aug 2009 Posts: 8982 Location: Australia
Expire: 2016-07-30
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Posted: Fri Feb 19, 2010 7:46 pm Post subject: |
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mo wrote:
Thanks unclemack _________________ Moira, Moderator
Fuji XE-1,Pentax K-01,Panasonic G1,Panasonic G5,Pentax MX
Ricoh Singlex TLS,KR-5,KR-5Super,XR-10
Lenses
Auto Rikenon's 55/1.4, 1.8, 2.8... 50/1.7 Takumar 2/58 Preset Takumar 2.8/105 Auto Takumar 2.2/55, 3.5/35 Super Takumar 1.8/55...Macro Takumar F4/50... CZJ Biotar ALU M42 2/58 CZJ Tessar ALU M42 2.8/50
CZJ DDR Flektogon Zebra M42 2.8/35 CZJ Pancolar M42 2/50 CZJ Pancolar Exakta 2/50
Auto Mamiya/Sekor 1.8/55 ...Auto Mamiya/Sekor 2/50 Auto Mamiya/Sekor 2.8/50 Auto Mamiya/Sekor 200/3.5 Tamron SP500/8 Tamron SP350/5.6 Tamron SP90/2.5
Primoplan 1.9/58 Primagon 4.5/35 Telemegor 5.5/150 Angenieux 3.5/28 Angenieux 3,5/135 Y 2
Canon FL 58/1.2,Canon FL85/1.8,Canon FL 100/3.5,Canon SSC 2.8/100 ,Konica AR 100/2.8, Nikkor P 105/2.5
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ludoo
Joined: 18 Sep 2009 Posts: 1397 Location: Milan, Italy
Expire: 2011-12-05
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Posted: Sat Feb 20, 2010 5:01 pm Post subject: |
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ludoo wrote:
I managed to find some pure acetone at a paint store, and it's the absolute best thing to clean glass that I've ever tried: it dries so fast that it does not leave any smudges on the coating. I plunge a q-tip in the acetone bottle, and quickly wipe it on the glass. I'll try the detergent/water baths with my next lenses, but for already compromised glass acetone might be the only way.
Curiously enough, a while ago I asked cleaning tips to the company manufacturing precision optics where I bought a beamsplitter mirror, and their reply was to use acetone. |
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Esox lucius
Joined: 26 Aug 2008 Posts: 2441 Location: Helsinki, Finland
Expire: 2011-11-18
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Posted: Sat Feb 20, 2010 6:58 pm Post subject: Re: Cleaning glass |
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Esox lucius wrote:
ludoo wrote: |
I am unable to properly clean the glass surfaces: whatever I do I can see translucent streaks on the coating, and/or smudges.
Any other things I should try? How do you clean lens elements? |
I have successfully cleaned one lens using Eclipse sensor cleaning fluid. It is designed to evaporate without leaving residue, making it perfect for cleaning optics. |
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OM
Joined: 15 Jan 2010 Posts: 166 Location: Southern England
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Posted: Thu Mar 18, 2010 11:25 am Post subject: |
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OM wrote:
I use this on my refracting telescopes and camera lenses:
http://www.firstlightoptics.com/proddetail.php?prod=wonderfluid
I find it cleans well and leaves no streaks with pure cotton buds.
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visualopsins
Joined: 05 Mar 2009 Posts: 10463 Location: California
Expire: 2021-06-22
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Posted: Thu Mar 18, 2010 2:33 pm Post subject: |
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visualopsins wrote:
Acetone may dissolve older lens coating; beware very old lens with soft coating.
Eclipse fluid is pure "reagent grade methyl alcohol"; obtain in bulk (liter), inexpensive at chemical supply house.
Cold Cream contains mineral oil, a solvent, and surficants (detergents and wetting agents).
Joy brand dishwashing liquid soap leaves no residue; no spots on glassware or silverware.
Discofilm (used for sensor cleaning) might work on lenses; I have not tried it. _________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ 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
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PaulC
Joined: 23 Dec 2008 Posts: 2318
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Posted: Thu Mar 18, 2010 5:03 pm Post subject: |
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PaulC wrote:
CleanSafe optical cleaner and a lens cloth seems to me to be far, far better than Canon lens cleaner and scratchy papers, which just smear accidental fingerprints across the lens.
I think it is designed for spectacles but it describes itself as being for all coated optical surfaces, so I guess it is less risky than soap or cold cream. I thoroughly recommend it.
Old, soft coatings on inner surfaces that weren't designed to be cleaned? Who knows? No guarantees! _________________ View or buy my photos at:
http://shutterstock.com/g/paulcowan |
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OM
Joined: 15 Jan 2010 Posts: 166 Location: Southern England
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Posted: Thu Mar 18, 2010 5:33 pm Post subject: |
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OM wrote:
I think cold cream is used just to remove fungus - I'm not sure it should be used for cleaning lenses...unless I'm mistaken...? |
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peterqd
Joined: 28 Feb 2007 Posts: 7448 Location: near High Wycombe, UK
Expire: 2014-01-04
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Posted: Thu Mar 18, 2010 8:46 pm Post subject: |
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peterqd wrote:
A camera repair guy in London the other day told me he uses Coca-Cola. He dabs it on and wipes it off with newspaper or soft toilet tissue. I guess he uses a clean bit - I mean with no ink on it!
Whaddaya think? It does have a secret recipe after all _________________ Peter - Moderator |
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ludoo
Joined: 18 Sep 2009 Posts: 1397 Location: Milan, Italy
Expire: 2011-12-05
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Posted: Thu Mar 18, 2010 8:53 pm Post subject: |
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ludoo wrote:
peterqd wrote: |
A camera repair guy in London the other day told me he uses Coca-Cola. He dabs it on and wipes it off with newspaper or soft toilet tissue. I guess he uses a clean bit - I mean with no ink on it!
Whaddaya think? It does have a secret recipe after all |
Forget SMC, sugar coating is better. |
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OM
Joined: 15 Jan 2010 Posts: 166 Location: Southern England
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Posted: Thu Mar 18, 2010 9:01 pm Post subject: |
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OM wrote:
peterqd wrote: |
A camera repair guy in London the other day told me he uses Coca-Cola. He dabs it on and wipes it off with newspaper or soft toilet tissue. I guess he uses a clean bit - I mean with no ink on it!
Whaddaya think? It does have a secret recipe after all |
I wouldn't let him near my lenses... |
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indianadinos
Joined: 06 Jul 2008 Posts: 1310 Location: Toulouse, France
Expire: 2011-12-05
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Posted: Thu Mar 18, 2010 11:32 pm Post subject: |
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indianadinos wrote:
Hi,
OM wrote: |
I think cold cream is used just to remove fungus - I'm not sure it should be used for cleaning lenses...unless I'm mistaken...? |
I use it to remove fungus and some cleaning marks, although not all cleaning marks seem to be removed by it ...
Cheers _________________ Please visit my blogs Shooting with a Pentax K10D / FF Visions
Takumar: 24/3.5, 28/3.5, 35/2, 35/3.5, 50/1.4, 55/1.8, 85/1.8, 105/2.8, 120/2.8, 135/3.5, 150/4, 200/4
Pentax-K: M28/2.8, K28/3.5, M50/1.4, A50/1.7, M50/4 Macro, K85/1.8, K105/2.8, K135/2.5, M200/4, M70-150/4
Zeiss: Flektogon 20/2.8, 20/4, 35/2.4, 35/2.8, Tessar 50/2.8, Pancolar 50/1.8, Biotar 58/2, Sonnar 135/3.5, Sonnar 180/2.8
Meyer: Primagon 35/4.5, Domiplan 50/2.8, Oreston 50/1.8, Primoplan 58/1.9, Trioplan 100/2.8, Orestor 100/2.8, Orestor 135/2.8
Schacht/Steinheil: Travenar 90/2.8, Travenon 135/4.5, Quinar 135/2.8, Quinar 135/3.5
Russian: MIR 37B, Industar 50/3.5, Helios 44M & 44M-2, Jupiter 37A
P6: Flektogon 50/4, Biometar 80/2.8, Orestor 300/4
Nikkor: Nikkor-O 35/2, Micro 55/3.5, Nikkor-S 50/1.4, Nikkor-Q 135/2.8
Fuji: EBC 28/3.5, EBC 55/3.5 Macro, EBC 135/2.5
Misc Lenses: Kiron 105/2.8 Macro, Tamron SP90/2.5
... and a few other Vivitar, Tamron, Sigma and Soligor lenses ...
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