I need a polarizer (and some black and white filters eg yellow, orange) that are compatible with the IVa center filter that I always use on my Schneider Super-Symmar 150mm f/5.6 XL, and my 90/5.6 SA XL.
According to BHphoto, here are the 4a CF specs:
Let's start with the polarizing filter -- how can I find a filter this large -- and will a threaded one vignette with extreme moves? I use mostly extreme rise for architecture.This filter has a front accessory thread of 112mm and uses a 115mm push-on lens cap (SCLC115).
Is a glass polarizer less likely to scratch than a "plastic/acrylic" version? I am thinking that all I need in a linear polarizer, not circular.
For the filter holder, the CF is quite thin -- how can I attach it.
ps: I prefer to filters at my front lens element (not rear).
Paul
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