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riverfour
Joined: 21 Jan 2011
Posts: 32
Location: Plano, TX
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 Posted: Mon Feb 07, 2011 6:15 pm Post subject: Any good advice to avoid tiny particles in lens cleaning? |
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riverfour wrote:
I have recently cleaned some lenses. I used lense cleaning liquid to clear some oily haze on lens glass in a lens rear group, and dried it with lens paper. I used blower to blow off the major dusts or particles. However, after putting the rear lens group together, I checked the lens by using a flashlight. There were still quite a few tiny particles. Are there better ways to avoid tiny particles during lens cleaning. I know we are not living in a super clean environment like the lens assembly line. I wonder how the camera shop in the marketplace does it to avoid dusts.
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Canon EOS 5D Mark II with 24-105mm f4L;
Canon EOS 5D;
Yashica: YUS 28mm 1:2.8, DSB 50mm 1:1.9, YUS 135mm 1:2.8, Yashinon DS 50mm 1:1.9 M42, Yashinon DS 50mm 1:1.4 M42, ML 42-75mm 1:3.5-4.5, ML 70-210mm 1:4.5,
ML 70-210mm 1:4.5-5.6, MC 28-80mm 1:3.9-4.9, ML 70-150mm 1:4; ML 35-135mm 1:3.5-4.5;
Vivitar:MC 80-200mm 1:4.5 CY, 300mm 1:5.6 M42, 85-205mm 1:3.8 M42, 300mm 1:5.5 M42, 200mm 1:3.5 Preset M42, 70-210mm 1:3.5-5.6 CY, 19-35mm 1:3.5-4.5 CY, 35-135mm 1:3.5-4.5 N/AIS, 35-135mm 1:3.5 M42; Asahi SMC Takumar 200mm 1:4 M42; Soligor 35-140mm MC 1:3.5 CY; Beroflex 500mm 1:8 CY; Makinon MC 24-50mm 1:3.3-4.5 CY; Rokinon 28-200mm 1:3.8-5.6 CY; Bushnell 35mm 1:2.8 M42; Focal 200mm 1:4.5 Preset M42; Focal 135mm 1:2.8 M42; Focal 135mm 1:2.8 Preset M42; Mitakon MC 28-135mm 1:3.8-5.2 PK |
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LucisPictor
Joined: 26 Feb 2007
Posts: 17633
Location: Oberhessen, Germany / Maidstone ('95-'96)
Expire: 2013-12-03
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| Posted: Mon Feb 07, 2011 6:42 pm Post subject: |
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LucisPictor wrote:
There is always some dust in the air.
What some guys do is to repair lenses in the bathroom, after having washed the dust out of the air with a shower. A normal shower will generate tiny water drops in the surrounding air. Once they hovered down to the floor, they have taken most of the dust particles with them.
I have never tried that. And you should have a good timing: too late and dust is up again, too early and you enclose some of those tiny drops inside you lens!
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visualopsins
Joined: 05 Mar 2009
Posts: 10543
Location: California
Expire: 2025-04-11
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| Posted: Mon Feb 07, 2011 8:13 pm Post subject: |
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visualopsins wrote:
check blower for dust inside  cover blower air intake with a pec pad.
initial dusting use blower outside area used for re-assembly.
pec pad micro-fibers used for cleaning remove all dust particles.
check with flashlight during assembly
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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 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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Arkku
Joined: 28 Feb 2007
Posts: 1416
Location: Helsinki, Finland
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| Posted: Mon Feb 07, 2011 9:22 pm Post subject: |
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Arkku wrote:
Easiest solution: Stop worrying, it has no effect on photos. |
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wupdigoj
Joined: 18 Mar 2010
Posts: 85
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| Posted: Mon Feb 07, 2011 9:38 pm Post subject: |
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wupdigoj wrote:
| Arkku wrote: |
| Easiest solution: Stop worrying, it has no effect on photos. |
+1. Some dust will have no effect at all |
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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: Mon Feb 07, 2011 9:41 pm Post subject: |
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peterqd wrote:
I don't use a blower. Why blow dust around around the room? I bought a small nozzle which fits on the end of the vacuum cleaner hose and it sucks the dust off the lens and up the tube, with a little help from a very soft squirrel-hair artist's water-colour brush.
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Attila
Joined: 24 Feb 2007
Posts: 57849
Location: Hungary
Expire: 2025-11-18
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| Posted: Mon Feb 07, 2011 9:47 pm Post subject: |
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Attila wrote:
| Arkku wrote: |
| Easiest solution: Stop worrying, it has no effect on photos. |
+1
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Attila
Joined: 24 Feb 2007
Posts: 57849
Location: Hungary
Expire: 2025-11-18
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| Posted: Mon Feb 07, 2011 9:48 pm Post subject: |
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Attila wrote:
| peterqd wrote: |
| I don't use a blower. Why blow dust around around the room? I bought a small nozzle which fits on the end of the vacuum cleaner hose and it sucks the dust off the lens and up the tube, with a little help from a very soft squirrel-hair artist's water-colour brush. |
Excellent idea
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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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goombles
Joined: 08 Apr 2010
Posts: 136
Location: UK
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| Posted: Mon Feb 07, 2011 9:53 pm Post subject: |
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goombles wrote:
Sounds sad, but has anyone tried earthing themselves when cleaning?
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Cameras: Canon 7D, Olympus OM-2n, Spotmatic SPII
M42: Sonnar 135/3.5, Flektogon 35/2.4, SMC Takumar 50/1.4, SMC Takumar 55/1.8, SMC Takumar 35/3.5
Tamron: SP 90/2.5 Macro |
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riverfour
Joined: 21 Jan 2011
Posts: 32
Location: Plano, TX
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| Posted: Tue Feb 08, 2011 7:30 am Post subject: |
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riverfour wrote:
Thank you all for the suggestions. I think the idea to suck the dust away is worthy trying.
_________________
Canon EOS 5D Mark II with 24-105mm f4L;
Canon EOS 5D;
Yashica: YUS 28mm 1:2.8, DSB 50mm 1:1.9, YUS 135mm 1:2.8, Yashinon DS 50mm 1:1.9 M42, Yashinon DS 50mm 1:1.4 M42, ML 42-75mm 1:3.5-4.5, ML 70-210mm 1:4.5,
ML 70-210mm 1:4.5-5.6, MC 28-80mm 1:3.9-4.9, ML 70-150mm 1:4; ML 35-135mm 1:3.5-4.5;
Vivitar:MC 80-200mm 1:4.5 CY, 300mm 1:5.6 M42, 85-205mm 1:3.8 M42, 300mm 1:5.5 M42, 200mm 1:3.5 Preset M42, 70-210mm 1:3.5-5.6 CY, 19-35mm 1:3.5-4.5 CY, 35-135mm 1:3.5-4.5 N/AIS, 35-135mm 1:3.5 M42; Asahi SMC Takumar 200mm 1:4 M42; Soligor 35-140mm MC 1:3.5 CY; Beroflex 500mm 1:8 CY; Makinon MC 24-50mm 1:3.3-4.5 CY; Rokinon 28-200mm 1:3.8-5.6 CY; Bushnell 35mm 1:2.8 M42; Focal 200mm 1:4.5 Preset M42; Focal 135mm 1:2.8 M42; Focal 135mm 1:2.8 Preset M42; Mitakon MC 28-135mm 1:3.8-5.2 PK |
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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: Tue Feb 08, 2011 10:26 am Post subject: |
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peterqd wrote:
| goombles wrote: |
| Sounds sad, but has anyone tried earthing themselves when cleaning? |
I'm not that fussed about dust specks on the external surfaces of lenses, and I know dust doesn't make any appreciable difference to the image quality. But some people buying lenses think it's important so for that reason I do like to keep things as clean as possible internally.
I think that sounds a very sensible idea and I'm going to try it! 
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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Tue Feb 08, 2011 7:14 pm Post subject: |
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martyn_bannister wrote:
| Arkku wrote: |
| Easiest solution: Stop worrying, it has no effect on photos. |
+1
Most, if not all, lenses are not hermetically sealed, so will inevitably get dust inside. Zooms are the worst, but primes also. |
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Lloydy
Joined: 02 Sep 2009
Posts: 7785
Location: Ironbridge. UK.
Expire: 2022-01-01
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| Posted: Tue Feb 08, 2011 11:43 pm Post subject: |
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Lloydy wrote:
| Arkku wrote: |
| Easiest solution: Stop worrying, it has no effect on photos. |
I eventually took this lens apart and got the dead fly out, but it hasn't improved the lens any.
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aleksanderpolo
Joined: 24 Jan 2010
Posts: 684
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| Posted: Wed Feb 09, 2011 12:17 am Post subject: |
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aleksanderpolo wrote:
| Lloydy wrote: |
| I eventually took this lens apart and got the dead fly out, but it hasn't improved the lens any. |
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Attila
Joined: 24 Feb 2007
Posts: 57849
Location: Hungary
Expire: 2025-11-18
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| Posted: Wed Feb 09, 2011 12:57 am Post subject: |
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Attila wrote:
| aleksanderpolo wrote: |
| Lloydy wrote: |
| I eventually took this lens apart and got the dead fly out, but it hasn't improved the lens any. |
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+10 I have also some lens with bug, one sonnar was dusty inside and you can see foot steps of bugs too. I sold this lens describe bug, dusts and returned from buyers this is fungus Still with me no time to clean and sell it again.
_________________
-------------------------------
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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calvin83
Joined: 12 Apr 2009
Posts: 7554
Location: Hong Kong
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| Posted: Wed Feb 09, 2011 3:42 am Post subject: |
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calvin83 wrote:
| Attila wrote: |
| aleksanderpolo wrote: |
| Lloydy wrote: |
| I eventually took this lens apart and got the dead fly out, but it hasn't improved the lens any. |
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+10 I have also some lens with bug, one sonnar was dusty inside and you can see foot steps of bugs too. I sold this lens describe bug, dusts and returned from buyers this is fungus Still with me no time to clean and sell it again. |
+11. I sold a lens with a yellow bug inside. Never receive complain about image quality from buyer.
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