AstrHori 10mm f/8 Review

Alright, let's talk about the AstrHori 10mm f/8. This is a super niche lens. It's a 10mm prime for Leica M mount, which is insanely wide, and it's a fully manual, all-metal little tube. It costs about $89, which is basically pocket change in the Leica world.

It's built for one thing: getting that ultra-wide look on a budget. There's no autofocus, no stabilization, and the aperture is fixed at f/8. You're buying a very specific, simple tool here.

Performance is a mixed bag, but you kinda know what you're getting. The 10mm focal length is the star. It's perfect for huge landscapes or tight interior shots where you want to get everything in the frame. But that f/8 aperture is a major limitation. You need a lot of light, and forget about any background blur or bokeh. The optical quality percentile ranking is, frankly, brutal at the 1st percentile. Expect some softness and distortion, especially in the corners. It's a fun lens for the effect, not for clinical sharpness.

For $89, it's hard to call this a bad value if you know what you're buying. You're getting a unique ultra-wide perspective for less than the cost of a good lens filter. But 'value' depends on your needs. If you need sharpness, speed, or autofocus, this lens has zero value for you. It's a toy or a creative experiment, not a workhorse.

This lens doesn't really compete with the others on the list like the Viltrox 35mm f/1.7 or the Meike 55mm f/1.8. Those are fast, autofocus lenses for different jobs. A better comparison is against other ultra-wide manual lenses, like a 7Artisans 12mm f/2.8. That lens gives you a faster aperture for low light and better bokeh potential, but it's also more expensive. The AstrHori is cheaper and wider, but you pay for it with that slow f/8. It's a trade-off between width, speed, and price.

Buy this lens if you're a Leica shooter who wants to play with an ultra-wide angle for fun, and you don't mind manual everything. It's a great cheap experiment for landscapes or artistic shots in good light. Do not buy this if you need sharp images, shoot in low light, or want any kind of convenience. It's a one-trick pony, and that trick is being very, very wide on a budget.