Schneider-Kreuznach Center-Filter for 90mm f8 darkroom with QD socket

with QD socket

so it's not a perfect fit

8 OSS is a compact portrait lens for APS-C format Sony E mount cameras

Included is a clean Hasselblad 80mm f2

Schneider-Kreuznach Center-Filter for 90mm f8 darkroom with QD socketThis Schneider Kreuznach Center Filter is a specialized filter designed for use with large format wide angle lenses. This filter has a 1. 5 stop neutral density effect in the centre, with a radial clearing to the edges: effectively, it darkens the centre of the image to bring its exposure closer to the edge exposure, reducing the effect of vignetting. The Center Filter is designed for use with 90mm lenses (this one is designated for the 90mm f8 in