What Is This Cap For?

[wjlapier]

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?

Bill

 

[ferider]

It should also screw into the lens (like a filter), if it screws on the filter, no ?

 

[wjlapier]

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.

 

[trittium]

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.

 

[Stefcuoz]

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.

 

[Stefcuoz]

135 mm f3,5 all black.

135 mm f3,5 all black.

I have take the photo from Pacificrimcamera, where you can find more photos and good explanation.
Steve.

 

[wjlapier]

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.