The Canon EF 8-15mm f/4L USM Fisheye is a unique L-series zoom that transitions from circular fisheye at 8mm on full-frame to a full-frame-filling diagonal fisheye at 15mm. No other manufacturer has made a fisheye zoom with this range on full-frame.
Optically excellent for a fisheye — sharp across the frame at all settings with L-series quality. At 8mm on full-frame, a circular image floats in a black frame. Zooming to 15mm fills the full frame with 180-degree diagonal coverage. Ring USM AF is fast and quiet.
Canon EF mount with built-in gelatin filter holder at rear. No front filter thread — bulbous front element. L-series weather-sealed construction. Weighs 540g. Also provides 180-degree coverage on APS-C at approximately 10mm. Minimum focus distance 15cm.
Available used at professional prices. The circular-to-diagonal fisheye concept is unique — no other lens offers this flexibility. L-series build quality. Useful for creative, VR panorama, and astrophotography applications. Check for front element scratches — the bulbous glass is exposed.