what are the glasses for?

M

mad_boy

Guest
dear members,

I am looking for a 35mm summicron for my M6TTL (0,85 viewfinder).
The older versions have the glasses (brille) with it.
This seems cumbersome and heavy, and they seem to come off as well.
Could you help me with the answers to the following questions:
- What is the use of these glasses?
- Can you use the lens with out them?

Mad_boy
 
The goggles are for the M3 version of the lens. They change the 50mm framelines to 35mm and enable the lens to be focussed correctly. The cam on the M3 version has a different slope than those on other 35mm M lenses, so the rangefinder will not focus the lens correctly without the goggles. The goggles look heavier than they really are. My 35mm Summaron has goggles, and I think they're kinda kewl.
 
Thanks Richard,

So if I understand right for my M6 TTL I must fit the goggles.
Correct?

Mad_boy
 
Correct. Without the goggles you would have to guess the focus. The rangefinder won't work correctly without the optical correction provided by the goggles.
 
Ummm... I could be wrong but as you are talking about using the lens on the M6, I think that
you can use the lens without the goggles. The M6 does have framelines for the 35mm.
The goggle are only good for the Lens if you were to use the lens on the M3, as Richard stated the M3 does not have the framelines for the 35mm.
Mike.
 
mtokue said:
Ummm... I could be wrong but as you are talking about using the lens on the M6, I think that
you can use the lens without the goggles. The M6 does have framelines for the 35mm.
The goggle are only good for the Lens if you were to use the lens on the M3, as Richard stated the M3 does not have the framelines for the 35mm.
Mike.
Click to expand...
That's partly the reason for the goggles. However, that's not all. If you remove the goggles and try to use it on the M6, the rangefinder will not focus the lens properly. At infinity it will be okay, but the closer you try to focus, the more innacurate it will be. For example, use the rangefinder to try to focus on an object 2m away. If you now look at the focussing dial on the lens, you will see that it is not even close to being focussed on 2m.
 
Thanks guys,

It may personal, but I do not like the goggles.
Hence now I need to find out from which version (serial no.) onwards
Lenses can be used on the M6 TTL without the goggles.

Does any of you know by heart?

Regards,

Mad_Boy
 
No clue, but you don't need to go for Leica glass necessarily. There are a couple of choices (all goggleless), like the CV Pancake (f2.5), and the Ultron and Nokton lenses (f1.7 and f1.2 respectively). There's also the Konica Hexanon f2.

If your heart is set on Leica, you'll have to look for Canadian Summicrons instead of Summarons... IIRC, these were built after the Summaron, pretty much to be a standard 35mm lens for Leicas. Now, I've seen Summarons without goggles, but I'd be wary about them because their design demands their use.

Good luck in your search!
 
If your heart is set on Leica, you'll have to look for Canadian Summicrons instead of Summarons.
Click to expand...
I beg to differ, Francisco. There are Summarons which do not use goggles. The goggled versions were designed for the M3 before there were any other M Leicas. The non-goggled M-mount Summarons were specifically designed for the M2 but will work on any M camera. (Of course, screwmount Summarons are also non-goggled and will work on any Leica M with an adaptor.)
 
The first 35 mm without "goggles" were built as soon as the M2 (which has 35 mm framelines) came out. That was in 1958. Leica built both versions side by side for a period of time.I don't know when the last ones with goggles were built, but I would guess sometime in the early seventies, as the M4 replaced the M3 in 1967.
 
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