Hello
I was reading the LF BBS and noticed a gentleman owned a 0.45 heliopan center we ighted ND filter. I would like to find one. I am using a Schneider Angulon 90mm on 6 x 17 and am noticing (as one would expect) light fall off at f32 (min apetu re). A SA90XL 5.6 would be great but I have to find that second job yet.
Does anyone know where to get such a filter? Do they come in differing levels of transmissibility change as you approach the circumfrence? I live in Australia a nd i havent found one yet...! I have had a look on at the Heliopan site but no n o avail....any thoughts or experiences??
Ps please dont tell me to get another lens!!
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