Lee Foundation Kit is available at B&H

[Dr Croubie]

Do the adapters come in 86mm?
Just curious, because I've got some MF glass, a 50mm f/4 (is about as wide as a 24mm on FF), with 86mm threads. Step-rings down to 72mm or smaller don't vignette even on FF, but one day when I buy an MF body i'm going to invest in a good filter system too.
Or what's the next size above this kit?

[Richard Lane]

Do the adapters come in 86mm?
Just curious, because I've got some MF glass, a 50mm f/4 (is about as wide as a 24mm on FF), with 86mm threads. Step-rings down to 72mm or smaller don't vignette even on FF, but one day when I buy an MF body i'm going to invest in a good filter system too.
Or what's the next size above this kit?

It appears they do make an 86mm adapter.

http://www.bhphotovideo.com/c/produc...Ring_86mm.html

I know Lee makes a Custom 150mm filter holder for the Nikon 12-24mm f/2.8 lens, accepts the wider 150mm x 170mm filters

http://www.bhphotovideo.com/c/produc...older_Kit.html



There's also the Cokin Z-Pro Filter Holder for 49-96mm filter mounts, which takes 100mm x 150mm filters for some Medium Format:

http://www.bhphotovideo.com/c/product/387303-REG/Cokin_CBZ100_Z_PRO_Filter_Holder_Requires.html


and the Cokin X-Pro Filter Holder for 62-112mm filter mounts, which takes larger 130mm X 170mm filters for some MF:

http://www.bhphotovideo.com/c/produc..._Requires.html