Summar 50/2 - Continental Aperture marks - help, please

[TheHub]

I just got a Summar 50/2 today. The aperture numbers are "Continental numbers" I was told (pre-WWII standard.)

The numbers are: 12,5 - 9 - 6,3 - 4,5 - 3,2 - - - 2,2 - 2

Does the correspond to: 22 - 11 - 16 - 8 - 5.6 - 4 - 2.8 - 1.4 ?


I've tried searching but I cannot seem to find any information on this. Any help appreciated 🙂

Is there anything else I should know about this lens? I read that it's easily scratched so I have a filter on it. Anything else?

 

[rogue_designer]

no - they correspond to just what they are marked... it's just a preference about where they fall.

they are still whole stops between them, I think. (except 2.2 and 2... obviously)

 

[erikhaugsby]

Nope. f/2 is f/2, f/9 is f/9 and etc. If you want f/4, you would have to guess by placing the selector in between f/3.2 and f/4.5.

Some say the lens is a dog, others love its signature.

 

[Film dino]

There's useful info on the older aperture & shutter speed scales here-
http://www.ozdoba.net/leica/leica_schraub_home_e.html#allg

http://www.ozdoba.net/leica/schraub_altezeit_e.html


David

 

[TheHub]

There's useful info on the older aperture & shutter speed scales here-
http://www.ozdoba.net/leica/leica_schraub_home_e.html#allg

http://www.ozdoba.net/leica/schraub_altezeit_e.html

Ahh, that's what I was looking for, thanks 🙂

It's going to be interesting shooting with this lens ...

 

[TheHub]

WOW, what a beautiful lens. 😱 I can't wait to put some color film through it. 🙂

 

[Xmas]

I just got a Summar 50/2 today. The aperture numbers are "Continental numbers" I was told (pre-WWII standard.)

The numbers are: 12,5 - 9 - 6,3 - 4,5 - 3,2 - - - 2,2 - 2

Does the correspond to: 22 - 11 - 16 - 8 - 5.6 - 4 - 2.8 - 1.4 ?


I've tried searching but I cannot seem to find any information on this. Any help appreciated 🙂

Is there anything else I should know about this lens? I read that it's easily scratched so I have a filter on it. Anything else?

TheHub

A lens hood helps...

Noel