[LRFlex] Re: Filter Puzzlement

"Merritt, Robert" <Robert.Merritt@xxxxxxxxxx> wrote:

> Hi all -- yesterday I received a very nice looking 135/2.8 Elmarit R, 2 cam.  
> As far as I can tell, it's the second 
> version, with 55mm filter threads (and 55 is inscribed sideways right next 
> the the "m" for meters on the 
> focusing scale).  I say "as far as I can tell" because while it came with a 
> Leica 55mm lens cap, that cap clearly 
> doesn't quite fit -- it's just a bit too wide for it to fit all the way on.  
> And, I tried screwing in a standard 55mm 
> filter and it will not go in.  So what gives?  Does "E55" mean something 
> other than "55"?  Here I was thinking I 
> didn't have to deal with series filters and could use a standard filter size.

Nick, this is a Series VII filter lens.  E55 didn't start until after 3-cam.  
You can get a 54mm-to-55mm step-up ring if you don't want to use Series 
filters.  The sideways 55 next to the "m" is the deviation of the true focal 
length from the nominal 135mm.  I think this means 140.5mm.  Deviation like 
this is normal but most manufacturers don't tell you about it.


Doug Herr
Birdman of Sacramento
http://www.wildlightphoto.com
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