AstrHori 6.5mm F2.0 6mm

A 192-degree circular fisheye with an f/2 aperture and 94th percentile bokeh, but optical quality lands in the 1st percentile. It's a fun creative toy at USD 116-129, not a serious lens. Manual focus only, no stabilization, and owners report real compatibility headaches.

Let's talk about that 192-degree circular angle. You get a full crystal ball image circle on APS-C, which is the entire reason this lens exists. The f/2 max aperture pulls in a lot of light, and with 9 aperture blades, the bokeh is genuinely smooth, one of the best in our database for this category. But the optical score is dead last. Sharpness falls off hard outside the center, and the distortion is extreme by design. Manual focus only, and the focus ring sits close to the mount, which makes precise adjustments awkward. Minimum focus distance is 200mm, so you can get close, but nailing focus at f/2 without autofocus is a real challenge.

Stacked against the Tamron 28-300mm f/4-7.1, the AstrHori is a one-trick pony while the Tamron is a do-everything zoom. The Sony 16-50mm f/3.5-5.6 OSS gives you stabilization and autofocus, both missing here. The 7Artisans 35mm F1.8 and Viltrox 56mm F1.7 are sharper, more practical primes with autofocus. But none of them can do a 192-degree circular image. If you want that specific look, the AstrHori is basically the only game in town at this price. If you want a lens that works for everyday shooting, every single competitor here beats it.

At USD 116 to USD 129 across 8 US listings, this is cheap enough to be an impulse buy for anyone curious about circular fisheye photography. The spread is only USD 13, so you're not saving much by hunting, but the lowest US listing at USD 116 is the one to grab if you're stateside. For that money you get a solidly built, fun lens that does one thing and does it with personality. Just don't expect it to replace anything in your kit.

The AstrHori 6.5mm F2.0 is a circular fisheye that throws a 192-degree image circle onto your APS-C sensor, and that's the whole pitch. It's a specialty lens, not a daily driver. The bokeh sits in the 94th percentile and the f/2 aperture ranks in the 92nd, which sounds great until you realize the optical quality overall lands in the 1st percentile. That's not a typo. This lens is a creative toy, and it knows it.

Skip this if you need a lens that works reliably for everyday shooting. The optical quality is the worst we've seen in this category, user sentiment is in the 16th percentile, and there's no autofocus, no stabilization, and no weather sealing. If you shoot on Canon mirrorless, owners report you'll need to set the camera to release shutter without a lens, which is a hassle. And if you're on full-frame, the small image circle will frustrate you. This is a specialty toy, not a workhorse.

The AstrHori 6.5mm F2.0 is a fun lens with real limitations. The 192-degree circular fisheye effect is genuinely cool, the f/2 aperture is impressive, and the bokeh is surprisingly good. But the optical quality is the worst in our database for this category, and user sentiment sits in the 16th percentile. Buy it if you want a creative toy for skate videos, travel oddities, or astro experiments. Don't buy it expecting a sharp, reliable lens.