Best ND filters for Leica M lenses

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Hello,

 

I'm trying to figure out what the best approach is for filters to use with my Leica Summicron 50 and Summilux 35. So I have two different sizes 39mm and 46mm and was thinking of investing in a set of filters with a holder. Lee has the seven5 system which is a big pricey. Just wondering what other solutions others are happy with. I like the idea of the screw on filters but I'd have to buy two sets for the different sizes which seems like I'd start carrying a lot more around with me. 

 

Thanks in advance for any advice.

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For involved tripod/landscape use, Lee75 or Cokin etc. is the best solution with varying options on cheaper clone-adapters, alternative glass manufacturers etc.

But I'm guessing you mean a screw-on ND filter for handheld use? For enabling wider apertures in brighter conditions or slower shutter speeds?

With maybe just the occasional tripod use and not with Graduated filters?

 

You can use a 39>46mm step-up ring. It means forgoing the screw on Summilux hood, though you could add an aftermarket 46mm screw on hood to the front of the filter.

46mm is a fairly standard Leica filter size, B+W and Heliopan are probably the two most popular manufacturers.

 

39mm is also a fairly standard size too of course, do you see other lenses/filter sizes in your future? 46mm is probably a reasonable size to start with, it would be my choice.

Differing filter sizes are a pain, I've baulked at adding 60mm ND and B+W filters for the 75mm Summilux as I already have a great set of 46mm and 49mm ones.

I still have some 55mm and 39mm ones too, I just keep them all now in the event I might need them at some point.