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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 20 Jun 2017 (Tuesday) 05:00
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Canon 5DSR Focusing screen scratched!

 
tomstephens89
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Jun 20, 2017 05:00 |  #1

Hi all,

It appears that the focusing screen on my 5DSR is badly scratched.

I have been doing some research and only find mixed answers on weather this part is user replaceable. Some say yes, some say no. And I don't know which part id need to buy anyway!

Might have to be a trip to the Canon repair centre :-(

Anyone else been in a similar boat?

Tom


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joeseph
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Jun 20, 2017 05:15 |  #2

$30... http://www.ebay.com …60318?hash=item​4d4906bd9e (external link)

instructions: http://www.focusingscr​een.com/work/5d3en.htm (external link)

sorted...


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rrblint
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Jun 20, 2017 10:17 |  #3

Curious as to how it got scratched.


Mark

  
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tomstephens89
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Jun 20, 2017 10:43 as a reply to  @ rrblint's post |  #4

I saw some marks and specs through the viewfinder so took out my lens tissues and some optical cleaning fluid and cleaned the mirror then the focus screen. Unfortunately I didnt realise how delicate and soft it is so my nail caught it a bit, plus the pressure of my finger tip through the tissue alone has scratched it.

Think its just as easy I book it in with the Canon repair centre for a new screen rather than ordering one from the states and attempting to fit it myself. Have it in for a full clean at the same time.

Tom


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Jun 20, 2017 12:31 |  #5

Screens are easier to clean if they are removed and handled gently, with distilled water and nano fiber cloth. Less likely to damage this way vs being in a hard to reach spot and you get both sides this way.


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tomstephens89
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Jun 21, 2017 08:28 |  #6

So I took it to Canon in Elstree this morning and as soon as I got there, took it off my hands, then returned it to me 10 minutes later with a new focus screen and viewfinder.

No charge either!

Thats what i call service!


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Jun 21, 2017 08:35 |  #7

tomstephens89 wrote in post #18383394 (external link)
So I took it to Canon in Elstree this morning and as soon as I got there, took it off my hands, then returned it to me 10 minutes later with a new focus screen and viewfinder.

No charge either!

Thats what i call service!

I understand that they gave you a new focus screen and that's great. But what in the world did you mean by a new viewfinder?


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Jun 21, 2017 08:50 |  #8

mwsilver wrote in post #18383399 (external link)
I understand that they gave you a new focus screen and that's great. But what in the world did you mean by a new viewfinder?

Well I think I heard him right, he either said new focus screen and viewfinder or new focus screen and gave the viewfinder a clean.

Either way, it looked pretty grimy and dusty before and now its crystal clear.


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Jun 21, 2017 10:20 |  #9

  • Literally what happened: "They replaced my damaged focusing screen with a brand new one at no charge"
  • Figuratively speaking, what happened: "I brought in my camera and walked out 10 minutes later with a camera 'with a brand new (unmarred) viewfinder'

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Jun 21, 2017 11:09 |  #10

Nice outcome!


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Jun 21, 2017 12:32 |  #11

tomstephens89 wrote in post #18382690 (external link)
Unfortunately I didnt realise how delicate and soft it is so my nail caught it a bit, plus the pressure of my finger tip through the tissue alone has scratched it.

"how delicate and soft it is"
...Thank you for providing a painful personal testimony proving the reality of what many of us try to warn on POTN !


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Jun 21, 2017 20:27 |  #12

Just because something is soft and delicate, it doesn't mean it shouldn't be handled, just that it is to be handled with care.


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Jun 21, 2017 20:37 |  #13

tomstephens89 wrote in post #18382690 (external link)
I saw some marks and specs through the viewfinder so took out my lens tissues and some optical cleaning fluid and cleaned the mirror then the focus screen.

I have always thought that DSLR mirrors (and SLR mirrors before them) were front surface mirrors and so should never be touched, just blown off with a bulb blower, and maybe brushed lightly with a very soft brush. Is that not correct? Are they tough enough for lens tissue and cleaning fluid?


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Jun 21, 2017 20:48 |  #14

bpalermini wrote in post #18383899 (external link)
I have always thought that DSLR mirrors (and SLR mirrors before them) were front surface mirrors and so should never be touched, just blown off with a bulb blower, and maybe brushed lightly with a very soft brush. Is that not correct? Are they tough enough for lens tissue and cleaning fluid?

They are tough enough to be wiped gently with a micro fiber towel. I have never used any lens solution on any mirrors. Just a very soft micro fiber towel and barely any pressure at all should be enough to clean anything off the mirror. ALWAYS use a blower to blow off anything loose first. I also then brush them off once with the MFT in one direction after that, then the gentle cleaning.


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Jun 22, 2017 06:44 |  #15

The reason I attempted to clean it myself with a rather 'bull in china shop method' being lens tissues, fluid and fingertip... Was because I can and have confidently wet cleaned sensors before, so I figured... Bahhhh focusing screen is nothing...

How wrong I was.... The sensor is battleship hard compared to this thing. :lol:


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Canon 5DSR Focusing screen scratched!
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