Used Sigma 10mm f/2.8 EX DC HSM Diagonal Fisheye for Sale — From £124

£124.00 Low price

£550.99 High price

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1 New this week

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Great for: landscape astro general

Sigma's diagonal fisheye for Canon APS-C — the 10mm f/2.8 filling the frame with 180-degree coverage.

The Sigma 10mm f/2.8 EX DC HSM Diagonal Fisheye is a diagonal fisheye for Canon EF-S mount APS-C cameras. At 10mm on APS-C, it fills the entire frame with a 180-degree diagonal field of view. Unlike circular fisheyes, the image fills the rectangular sensor. HSM provides quiet autofocus — unusual for a fisheye. The EX designation indicates professional build.

As a diagonal fisheye, extreme barrel distortion curves straight lines dramatically. Sharpness is good across the frame. The f/2.8 speed enables astrophotography. HSM motor provides fast, quiet AF with full-time manual override. The EX build quality is solid. The fisheye effect creates dramatic, immersive images that no rectilinear lens can produce.

Canon EF-S mount, APS-C. No front filter thread — small protruding front element. Weight is approximately 475 grams. Build quality is solid EX professional grade. HSM motor differentiates this from many manual-focus-only fisheye alternatives. The autofocus is genuinely useful for casual fisheye shooting where manual focus is inconvenient.

Available at moderate prices. Check front element and AF. The HSM AF capability is the key differentiator versus manual-focus fisheyes. Good for creative photography, astrophotography with fisheye perspectives, and 360-degree panorama stitching where software corrects the distortion. The Samyang 8mm f/2.8 is the budget manual alternative.