Using a Step-up (down?) ring for 60mm IR filter on 58mm nocti?

[ryan_peck]

I have an early 50mm Noctilux that i'm using on my M8. I ordered a 60mm IR filter as one of the pair

offered free and I'm looking for your thoughts on the best way to put it on my 58mm filter-sized lens. Is

there any reason I can't or shouldn't just try to find a step-up ring?

 

any thoughts much appreciated.

thanks

ryan

[harrisonp]

It's 2mm haha don't even worry about it just put a step up ring on it

[wai_leong_lee]

That is the wise choice. 2filter.com sells step-up rings if you need.

[fjords]

yehh, but your lens shade 12519 will no longer fit.

[roger_dunham]

I found a 58mm Heliopan Uv/IR filter for my Noctilux . It will not be exactly the same IR

transmission as the Leica filter but this is less critical on the 50mm.

[guy_mancuso]

You might be able to actually take the glass from the 60mm which will be smaller than 60mm

and try and find a 58mm filter that may fit it inside. i did this with a 62mm B+W and fit it in a

60mm for my 75 lux. My take some experimenting to get the right empty 58mm filter holder.

Some companies mount differntly .

 

Also agree with Roger it won't have the same transmission as the leica filter but there is no

cyan cast to deal with on the 50mm focal length , if anything you may just have a slight

global color change from a leica one which in raw is jsut a small tweak