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Eriksen
Joined: 15 Nov 2016 Posts: 153
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Posted: Mon Jul 15, 2019 12:20 pm Post subject: Leaking light in adapter flange. |
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Eriksen wrote:
With some adapters and manual lenses the light is leaking around the flange. Are there any simple step to do in order to prevent this? |
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marcusBMG
Joined: 07 Dec 2012 Posts: 1304 Location: Conwy N Wales
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Posted: Mon Jul 15, 2019 1:16 pm Post subject: |
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marcusBMG wrote:
There's been some discussion of this on PF specifically with reference to M42 lenses with a mount that isn't very wide:
https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/302385-preventing-m42-adapter-light-leaks-dust-ingress-easy-solution.html _________________ pentax ME super (retired)
Pentax K3-ii; pentax K-S2; Samsung NX 20; Lumix G1 + adapters;
Adaptall collection (proliferating!) inc 200-500mm 31A, 300mm f2.8, 400mm f4.
Primes: takumar 55mm; smc 28mm, 50mm; kino/komine 28mm f2's, helios 58mm, Tamron Nestar 400mm, novoflex 400mm, Vivitar 135mm close focus, 105mm macro; Jupiter 11A; CZJ 135mm.
A classic zoom or two: VS1 (komine), Kiron Zoomlock... |
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DConvert
Joined: 12 Jun 2010 Posts: 902 Location: Essex UK
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Posted: Mon Jul 15, 2019 1:54 pm Post subject: |
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DConvert wrote:
Simply wrapping some dark cloth around the adapter/rear of the lens will probably work.
A more permanent solution may be possible but will depend on the adapter.
Light leakage can be an issue with Pentax 110 adapters, with light getting in where the lens release lever passes through the adapter. It's not normally an issue for me but has appeared when dark filters are being used. |
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D1N0
Joined: 07 Aug 2012 Posts: 2491
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Posted: Mon Jul 15, 2019 2:01 pm Post subject: |
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D1N0 wrote:
Put a hair tie around it _________________ pentaxian |
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Sciolist
Joined: 29 Mar 2017 Posts: 1445 Location: Scotland
Expire: 2021-04-16
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Posted: Mon Jul 15, 2019 2:22 pm Post subject: |
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Sciolist wrote:
Luckily, the problem I had was just with a cheap adapter. Lenses were fine. I used electrical tape until I bought something with tighter tolerances. It worked fine. |
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philslizzy
Joined: 07 Aug 2012 Posts: 4748 Location: Cheshire, England
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Posted: Mon Jul 15, 2019 9:22 pm Post subject: |
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philslizzy wrote:
I have had the same problem with a Minolta/Sony A adaptor, light was getting in through the lens release lever. I have wrapped electrical tape around it and the problem has disappeared. _________________ Hero in the 'messin-with-cameras-for-the-hell-of-it department'. Official. |
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kiddo
Joined: 29 Jun 2018 Posts: 1121
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Posted: Tue Jul 16, 2019 1:09 am Post subject: |
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kiddo wrote:
I'm using electrical tape also, but the one without glue on it, it's more elastic and it's easy to remove |
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SkedAddled
Joined: 19 Oct 2008 Posts: 1427 Location: Michigan, USA
Expire: 2021-08-12
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Posted: Tue Jul 16, 2019 1:51 am Post subject: |
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SkedAddled wrote:
If you were to describe exactly where you feel the light leak is occurring,
any one of us may be able to better advise you.
I see mention of electrical/electrician's tape already, but how about what's frequently
named 'hockey tape' here in the US, or Gaffer's tape?
A black cloth tape, it sticks very well to itself, but does not tend to leave residues
of adhesive. If it's a situation where a wrap around the outside of a lens/adapter
fitting would seal the light, then two tight wraps around it may be all that's needed. _________________ Craig
Of course I'm all right! Why? What have you heard!?
Canon Digital EOS 5D Mk IV, EOS 50D, Powershot S3 iS
Vivitar 28 f/2.8 OM - Zuiko 50 f/1.8 OM - Tamron SP 28-80 f/3.5 AD2[Favorite!] - Hanimar 135 f/3.5 M42 - Soligor 135 f/2.8 T4 - Tamron SP 60-300 f/3.8 AD2 - Soligor 75-260 f/4.5 M42 - Soligor 400 f/6.3 T4 - Soligor 500 f/8 T2 Cat + Matched 2X TC - Addiction Growing!
This is us -- We drive these -- We're named these |
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kds315*
Joined: 12 Mar 2008 Posts: 16544 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Tue Jul 16, 2019 6:06 am Post subject: |
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kds315* wrote:
Had that too, especially when doing low light, high ISO shooting. Used aluminum foil and rubber bands... _________________ Klaus - Admin
"S'il vient a point, me souviendra" [Thomas Bohier (1460-1523)]
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
https://www.flickr.com/photos/kds315/albums my albums using various lenses
http://photographyoftheinvisibleworld.blogspot.com/ my UV BLOG
http://www.travelmeetsfood.com/blog Food + Travel BLOG
https://galeriafotografia.com Architecture + Drone photography
Currently most FAV lens(es):
X80QF f3.2/80mm
Hypergon f11/26mm
ELCAN UV f5.6/52mm
Zeiss UV-Planar f4/60mm
Zeiss UV-Planar f2/62mm
Lomo Уфар-12 f2.5/41mm
Lomo Зуфар-2 f4.0/350mm
Lomo ZIKAR-1A f1.2/100mm
Nikon UV Nikkor f4.5/105mm
Zeiss UV-Sonnar f4.3/105mm
CERCO UV-VIS-NIR f1.8/45mm
CERCO UV-VIS-NIR f4.1/94mm
CERCO UV-VIS-NIR f2.8/100mm
Steinheil Quarzobjektiv f1.8/50mm
Pentax Quartz Takumar f3.5/85mm
Carl Zeiss Jena UV-Objektiv f4/60mm
NYE OPTICAL Lyman-Alpha II f1.1/90mm
NYE OPTICAL Lyman-Alpha I f2.8/200mm
COASTAL OPTICS f4/60mm UV-VIS-IR Apo
COASTAL OPTICS f4.5/105mm UV-Micro-Apo
Pentax Ultra-Achromatic Takumar f4.5/85mm
Pentax Ultra-Achromatic Takumar f5.6/300mm
Rodenstock UV-Rodagon f5.6/60mm + 105mm + 150mm
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