Originally posted by bjolester Thank you all very much for your advice!
I purchased part of a Lee 100 system for my 67ii system second hand. So far I have got two adapters, the standard 67mm and the standard 82mm adapter. Lee also makes wide angel adapters for most lens dimensions, which fixes the filter system a few millimeters onto the lens. The wide angle adapters are more expensive than the standard adapters (of course...). So the variables for the Pentax 67 45mm f4 lens with the Lee 100 system, with regards to vignetting, are two different adapters and how many slots one decides to have on the filter holder. Maybe the easiest thing is to just shot a film and see how it turnes out
Regards
Bjørn
I am using the Lee system on a 45mm as well. I ended up getting the wide angle adapter from "the filter dude" on ebay. I'm not really into knock off stuff but I mean come on, its a metal ring, so i took the $25 risk and it works just fine as well is a quality crafted ring.
I'm assuming your 67mm standard ring is for a 105mm? If so that lens is telephoto enough to not vignette on a standard ring.
Just go run a test roll through it, take some shots with open sky, thats where you will notice vignetting most easily. I'd think you would be fine with standard rings as people are shooting with 15mm (full frame 35) lenses with the Lee 100 kit.
I have yet to come across a situation where I wanted to stack more than 2 filters.