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Fbonito
Tinkerer
Username: Fbonito
Post Number: 1
Registered: 02-2012
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, February 13, 2012 - 03:42 am: | 
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hello,
i was given have a kiev 88 with a split focus sreen, this screen seamed to be not very bright, i then realised that it was mounted backwards, with the matte finish on top.
http://static.photo.net/attachments/bboard/00M/00Mtpw-39058384.jpg
after a search i came the matte side of the screen needs to be turned down, in the direction of the mirror.
but i can't focus 100% with the split image, for example to the infinity.
the screen has a metal frame, matte glass with the split magnifying glass, a frame spacer and a clear glass with a grid.
what is the correct position of these elements?
should the convex part of the magnifying glass be to top or bottom?
can anyone check on their kiev, or hasselblad, how the focus screen is mounted?
thanks everyone |
Thepurush
Tinkerer
Username: Thepurush
Post Number: 14
Registered: 01-2012
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, February 13, 2012 - 08:17 am: |
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Yes the convex side is toward mirror. |
Fbonito
Tinkerer
Username: Fbonito
Post Number: 2
Registered: 02-2012
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, February 13, 2012 - 08:20 am: |
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here is a top and bottom view of the screen
http://s3.amazonaws.com/data.tumblr.com/tumblr_lzc6o8z92k1qi49yxo1_1280.jpg?AWSA ccessKeyId=AKIAJ6IHWSU3BX3X7X3Q&Expires=1329231212&Signature=TgJB8bxdHJLg9Jt3tHy 5WJ5vcBM%3D
thepurush, the problem is that i can get the 100% infinity focus this way... |
Fbonito
Tinkerer
Username: Fbonito
Post Number: 3
Registered: 02-2012
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, February 13, 2012 - 08:40 am: |
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here is a top and bottom view of the screen
http://26.media.tumblr.com/tumblr_lzc6o8z92k1qi49yxo1_500.jpg
thepurush, the problem is that i can get the 100% infinity focus this way... |
Fbonito
Tinkerer
Username: Fbonito
Post Number: 4
Registered: 02-2012
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, February 13, 2012 - 05:52 pm: |
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well i figure it out now...
it seems that the mirror is slightly misaligned causing the focus not to be 100% in the split focus...
but if i use the focus screen down side up i can get a very good focus...
kiev 88 temper...
i will have to keep it like that until i get the mirror aligned
thanks for all your help |
Glenn
Tinkerer
Username: Glenn
Post Number: 967
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, February 14, 2012 - 02:46 pm: |
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No you will not! The important plane of focus is the film plane, not the eye piece. Until you have the mirror properly aligned, the screen correctly installed and the focus in the film plane checked with a piece of ground glass, the camera is nothing more than a paper weight. |
