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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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 Posted: Mon Jul 18, 2011 6:05 pm Post subject: Old film bodies - 5D mirror? |
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martyn_bannister wrote:
I have a couple or three old film bodies cluttering up my garage, including a couple of Canon 1000F's, the ubiquitous Zenit's, Praktica's etc.
Anyone know if the Canon 5D mirror happens to be the exact same size as the mirror in a film slr? I'm not brave enough to take it out to measure it!
Might be an inexpensive way of shaving a mirror - if it works then great, if it doesn't then it's only an old film slr mirror ruined 
There's a thought - what about the focus screen????? |
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LucisPictor
Joined: 26 Feb 2007
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| Posted: Mon Jul 18, 2011 6:33 pm Post subject: |
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LucisPictor wrote:
Hard to tell, what I do know is that "measuring" a lens rear part with a film EOS does not mean that it works on a 5D!
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kansalliskala
Joined: 19 Jul 2007
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Location: Southern Finland countryside
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| Posted: Mon Jul 18, 2011 7:15 pm Post subject: |
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kansalliskala wrote:
At least EOS 300 hits mirror with Mir 1B.
Blackout .. aargh, did the battery die .. 
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martyn_bannister
Joined: 23 May 2010
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| Posted: Mon Jul 18, 2011 8:01 pm Post subject: |
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martyn_bannister wrote:
| LucisPictor wrote: |
| Hard to tell, what I do know is that "measuring" a lens rear part with a film EOS does not mean that it works on a 5D! |
What I was thinking was to take the mirror out of an old slr and use it in the 5D (having shaved it first), if I could find one that was the same size |
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LucisPictor
Joined: 26 Feb 2007
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Location: Oberhessen, Germany / Maidstone ('95-'96)
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| Posted: Mon Jul 18, 2011 8:15 pm Post subject: |
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LucisPictor wrote:
It's not only the size, it also needs to be as thick as the 5D one. Kinda risky.
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ManualFocus-G
Joined: 29 Dec 2008
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Location: United Kingdom
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| Posted: Mon Jul 18, 2011 8:47 pm Post subject: |
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ManualFocus-G wrote:
Dangerous ground! There is another mirror there too for AF which can get broken quite easily I believe. Stan (Trifox) should be able to help, he's shaved his 5D and 5D II 
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lEo.
Joined: 08 Apr 2009
Posts: 35
Location: Toronto, Canada
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| Posted: Mon Jul 18, 2011 11:12 pm Post subject: |
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lEo. wrote:
I can use Exakta lenses safely on EOS3 without mirror hit.
I think the mirror sizes vary among different generations of camera bodies.
Last edited by lEo. on Mon Jul 18, 2011 11:23 pm; edited 1 time in total |
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Attila
Joined: 24 Feb 2007
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| Posted: Mon Jul 18, 2011 11:16 pm Post subject: |
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Attila wrote:
| ManualFocus-G wrote: |
| Dangerous ground! There is another mirror there too for AF which can get broken quite easily I believe. Stan (Trifox) should be able to help, he's shaved his 5D and 5D II |
and Koji , Orio also safest way to order a spare mirror from Canon and save it after.
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peterqd
Joined: 28 Feb 2007
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| Posted: Tue Jul 19, 2011 12:15 am Post subject: |
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peterqd wrote:
| ManualFocus-G wrote: |
| Dangerous ground! There is another mirror there too for AF which can get broken quite easily I believe. Stan (Trifox) should be able to help, he's shaved his 5D and 5D II |
I don't think it's a good idea to swap the mirror for an old one, unless you never want to use AF again. The 5D mirror is 2 way - it reflects only about 75% of the light to the focussing screen, the other 25% goes through the mirror to the AF sensor.
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muddus
Joined: 27 May 2011
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Location: Suomi
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| Posted: Tue Jul 19, 2011 3:54 am Post subject: |
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muddus wrote:
I have an old 06 .. number 5DC a mirror to give some sound when brushing Distagon 35 / 2,8. Sounds when the image up and the camera is in an upright position. It is so disgusting that I no longer use the Distagon.
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ZoneV
Joined: 09 Nov 2009
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Location: Germany
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| Posted: Tue Jul 19, 2011 7:01 am Post subject: |
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ZoneV wrote:
Probably I can help. At home I have the measures of the 5D mirror.
Last saturday the mirror of my 5D went off.
I thought some months earlier about shaving my mirror (FD 85/1.2 FD 20/2.8 and some other lenses would be happy), now it it probably a good starting point to do that
At the moment I have glued the mirror with Gaffa tape in place, to test my new converted FD 24/1.4L.
But I am thinking about different ways:
a) Simply visit the Canon repair shop - probablsy I have to wait very long to get the camera back.
b) Glue the mirror with some fast glue - but Canon will no longer repair / adjust the fast fix.
c) Shaving the mirror - and the mirror frame, and glue afterwards
d) Use a real mirror - not only this ~ 50% transmission thing (probably with shaving it).
Version d) is the most appealing for me at the moment.
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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Tue Jul 19, 2011 8:29 am Post subject: |
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martyn_bannister wrote:
Hmmm, I hadn't thought about the 75% reflectivity to allow the AF sensor some light. I had just sort of assumed that the AF sensor was somewhere in the mirror/prism/viewfinder path. This totally rules out any old SLR mirror which will, of course, be 100% reflective!
Let me look up home much a new mirror costs............
Nope, found this page, which has put me right off the idea straight away!!! |
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