What Is This Cap For?

wjlapier

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I ordered this cap for my 5cm 1.4 lens fromm KEH and it didn't fit--it was listed as a screw-in cap for 43mm. The filters are Walz 43mm. The cap on the bottom of the stack is a Nippon Kogaku slip-on for 43mm. But the cap on top has threads and treads perfectly on the Walz filters. Any idea?
KogakuCap.jpg


Bill
 
The cap has threads on the inside of it! Notice the grooves around the top. The other correct 43mm slip-on filter doesn't have these grooves.
 
I think its a filter stacking cap. Basically, instead of carrying a lot of filter cases, you screw all the filters together and put caps on both ends. Throw the whole lot in a camera bag, and you are ready to go.
 
135 mm f3,5 all black.

135 mm f3,5 all black.

This is a screw caps who is fitted on 135 mm hood. And for precision is the caps for the first model of black135 mm f3,5 rf lens, the all black type...
If i can i will post a complete item, lens- caps- hood, photo.
Steve.
 
135 mm f3,5 all black.

135 mm f3,5 all black.

135allbk.jpg


I have take the photo from Pacificrimcamera, where you can find more photos and good explanation.
Steve.
 
Last edited:
That Makes Sense!

That Makes Sense!

I just check Rotoloni's book and you are right. The 135 takes a 43mm filter. For some reason I thought the filter size for the 135 would be bigger.
 
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