| Author |
Message |
    
Integrity
Tinkerer
Username: Integrity
Post Number: 1
Registered: 08-2008
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, August 21, 2008 - 02:00 pm: | 
|
I HAVE CANON A-1 BUT THE VIEWFINDER IS BLURRY, I NEED TO KNOW HOW TO CLEAN IT OR WHAT THE PROBLEM MIGHT BE, THANKS IN ADVANCE FOR YOUR HELP. |
Glenn
Tinkerer
Username: Glenn
Post Number: 406
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, August 21, 2008 - 03:21 pm: |
|
Your question is impossible to answer without additional information.
With a decent lens on the body and the focus set at infinity, do you get a sharp image but the image looks like it is being viewed through a veil or fog? If this is what happens, the problem is probably due to dirt film on the rear face of the prism and the inner face of the viewfinder lens. A simple way to check this is to remove the focus screen and the shine a light through the mirror box. If you then place the viewfinder lens about six inches away from you eye, you should be able to see the dirt etc. You will need to remove the top plate to clean the rear of the prism and inner surface of the finder lens.
Other causes are a damaged focus screen, or a viewfinder lens that has separated - it is made from two components joined by a synthetic balsam.
So please describe your problem in detail.
Other causes |
Rick_oleson
Tinkerer
Username: Rick_oleson
Post Number: 660
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, August 21, 2008 - 06:38 pm: |
|
Check to see if there is an eyesight-correction attachment on the viewfinder eyepiece. When I inherited my father's Nikkormat, it had an eyepiece correction lens that made it impossible for me to focus in the viewfinder, and since it was screwed on and looked like part of the camera it took me a while to figure out what the problem was. |
Glenn
Tinkerer
Username: Glenn
Post Number: 407
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, August 22, 2008 - 06:07 pm: |
|
Rick,
Thanks. You saved me having to repost the part of the last paragraph, that I seem to have somehow consigned elsewhere!
In case Tom does not know, the A Series correction lenses just slide onto the black viewfinder frame - just slide upwards to remove. The attachment does tend to look like it is a permanent part of the camera to the uninitiated.
Glenn |
