RichL
Well-known
I am replacing the spotted beamsplitter in a range finder. Does anybody here know what Leitz' specs are for transmission/reflection? If not, can anybody here that has actually replaced their beamsplitter give me at least a ballpark idea of what I should be hunting for in the way of transmission?
Thanks much
Rich L
Thanks much
Rich L
Mr_Flibble
In Tabulas Argenteas Refero
Go for around 50/50. 75/25 will definitely not be helpful....ask me how I know. 
je2a3
je
Years ago I did beam splitter replacement on my Leica II and clones. Like Mr. F said, I used a 50/50 mirror from Edmund Scientific.
RichL
Well-known
Thank you both.
Found one for $15.95 at Edmund Scientific.
75/25 works fine in noonday desert sun does it?
Found one for $15.95 at Edmund Scientific.
75/25 works fine in noonday desert sun does it?
Mr_Flibble
In Tabulas Argenteas Refero
I get my beamsplitter material from surplusshed.com . They have 50/50 half-mirrors sometimes (like RIGHT NOW ) and for a lot less then Edmund Scientific. You will have to cut it down to the right size yourself though.
) and for a lot less then Edmund Scientific. You will have to cut it down to the right size yourself though.RichL
Well-known
Thanks, saw those earlier but the "seem to be" qualifier put me off. If you've them already though I guess I'll give them a try.
Mr_Flibble
In Tabulas Argenteas Refero
It should be fine. I fixed the RF of a Kodak Retina II model 142 with it (second time round...after using the 75/25 material first ).
).normclarke
normclarke
You'll need 65/35 for an M leica.
Best,
normclarke
Best,
normclarke
Particular
a.k.a. CNNY, disassembler
I have bought a beamsplitter mirror cut to size for Leica ltm from this seller:
http://myworld.ebay.com/nobbysparrow/
I'm looking forward to using je2a3's page as a reference when I do the work.
Normclarke, does 65% go to the viewfinder, and 35% to the rangefinder or visa versa?
http://myworld.ebay.com/nobbysparrow/
I'm looking forward to using je2a3's page as a reference when I do the work.
Normclarke, does 65% go to the viewfinder, and 35% to the rangefinder or visa versa?
RichL
Well-known
Thanks for the specs.
je2a3
je
Thanks for posting this link, I've purchased bits from this seller years ago and lost track!
normclarke
normclarke
CNNY,
I believe we may be at cross purposes here, my figures are for the beam splitter prism for an M camera. I think the S series body's had a different set up. The 35% is the transmission figure in the main prism.
Best,
normclarke.
I believe we may be at cross purposes here, my figures are for the beam splitter prism for an M camera. I think the S series body's had a different set up. The 35% is the transmission figure in the main prism.
Best,
normclarke.
jn053
Member
70/30 was the original spec for Leica screwmounts, according to DAG.