The Canon 8-15mm f/4 EF L USM is a wide-angle fisheye zoom for the Canon EF mount, part of the professional L series and driven by an Ultrasonic Motor for autofocus. It covers the unusual range from a circular fisheye image at 8mm to a full-frame diagonal fisheye at 15mm on full-frame EF bodies, aimed at photographers needing both effects in a single lens.

UK auction data for this lens is thin: a single hammer result of £320 was recorded in November 2025, so the median, low and high all sit at that figure as of today. Because that price is a saleroom hammer (wholesale, before commission) rather than a retail figure, dealer asking prices and clean private-sale values typically run higher, and a single data point should be treated as indicative rather than a firm guide to what the lens is worth.