Schneider Kreuznach Componon-S 100mm f/5.6 lens cap size?
I just got this enlarger lens but it came without a cap. It looks like it's 40mm threads, but can someone confirm this for me?
There are 2 different Schneider Componon-S 100mm f/5.6 lenses; the difference is the mounting threads on the rear. You'll need to verify which type you have: 39mm (Leica) Thread Mount, or 32.5mm thread mount. It's easiest to determine using the US Schneider Web Site & look at the pictures.
39mm mount: https://www.schneideroptics.com/ecom...D=176&IID=1977
32.5mm mount: https://www.schneideroptics.com/ecom...D=176&IID=1973
The front lens cap would be different for each.
If you got the 32.5mm mount, and it did not come with an adapter, it is available here: http://www.bhphotovideo.com/c/produc...ica_Mount.html
The front internal threads on the 39mm Leica mount are 43mm, so measure carefully. That's about 1/8 inch difference between the 2 sizes.
Schneider sells replacement lens caps--I'd call to make sure to get the right one; otherwise you could use a generic snap-in lens cap.
Also, if you want the detailed dimensions, you can go to the Schneider Kreuznach site and find a brochure that lists all the dimensions that are important. I didn't see that on the US site.
Do you want a front or rear cap? If you want a front cap, measure the outer diameter of the lens barrel and purchase accordingly.
BTW the lenscap on my 105 Componon-S is 59mm.