Archived posting to the Leica Users Group, 2000/03/10

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Subject: Re: [Leica] Re: 50mm f1.5 Nokton question
From: Bmceowen@aol.com
Date: Fri, 10 Mar 2000 14:34:05 EST

In a message dated 3/10/00 12:05:47 PM, drodgers@nextlink.com writes:

>It's not the cost of lenses and bodies that bug me. It's the cost of all
>the little add-ons. As long as I'm venting I'll mention that I'm upset
>with
>the variations in filter sizes among all my M lenses. A fellow luger just
>told me over the phone that he just spent $500 for filters for his Leica
>lenses, and his lenses are all the latest. It looks like I'll probably
>end
>up doing the same. The filter size thing doesn't bother me too much,
>because I'd hate to see a lens made larger just to accomidate a standard
>filter. I'm certain that's easier to do in the SLR world, since lenses
>are
>larger to begin with.


I just recently dealt with the filter size issue. On the odd chance anyone 
will benefit from my experience I'll tell you what I did:

I have six Leica M lenses which are designed for four different filter sizes 
(15mm Cosina=no filter, 24mm ASPH=55mm, 35mm=39mm or Series 7 in hood, 
50mm=39mm, 90mm=49mm and 135mm=Series 7). I have settled on two filter sizes 
to accomodate all of the lenses (except the 15mm which doesn't take filters). 

I use 55mm filters on the 24mm ASPH and the 90mm Summicron (by way of a 49-55 
stepping ring). The 55mm filters just barely fit inside the hood of the 90mm. 
I could have also used the 55mm filters on the 135mm f2.8 by buying a Series 
7-55mm ring but I'm using series 7 on the 35mm and 50mm so I didn't see any 
point in buying that ring (though I probably will someday, if for no other 
reason than you can't get a CC30M in series 7).

I use Series 7 filters in the hood for the 35mm f2.0. I figure when I want to 
filter the 50mm summicron I'll just use the 35mm hood and the filters for it. 
The other option was to buy a set of 39mm filters for use on both the 35mm 
and 50mm but unless I went with 55mm on the 135mm that would have meant a 
third filter size.

Anyway, I cut my filter sizes in half by stepping up from the 49mm thread on 
the 90mm and by going with series 7 on the 35 and 50mm. Maybe there's somethin
g like this that you can do as well . . . 

Bob (NOW you tell me I shouldn't use filters) McEowen