Does the Canon fisheye 15mm 2.8 lens have built in filters, or are they interchangeable like the Nikon?

-- Edward McBreen (ejphoto1@aol.com), December 30, 1999

Answers

The 15mm Fisheye takes 31mm drop-in filters through a slot at rear of lens elements

-- David Haigh (no1traumanurse@hotmail.com), April 21, 2000.