A light and ultra-thin fixed-aperture fisheye lens, this Leica M-mount AstrHori 10mm f/8 Lens stretches the frame with its 180° field of view, making it ideal for photographers looking for quirky, distorted perspectives or expansive landscapes. This APS-C manual prime lens produces crisp and vibrant images, thanks to its five-element structure that includes three extra-low dispersion elements to minimize distortion and chromatic aberration. The lens is lightweight and durable with an all-metal build and multicoated design for clarity.
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Key Features
- APS-C | f/8
- 15mm Full Frame Equivalent
- Fixed Aperture Wide-Angle Prime
- Manual Focus Design
A light and ultra-thin fixed-aperture fisheye lens, this Leica M-mount AstrHori 10mm f/8 Lens stretches the frame with its 180° field of view, making it ideal for photographers looking for quirky, distorted perspectives or expansive landscapes. This APS-C manual prime lens produces crisp and vibrant images, thanks to its five-element structure that includes three extra-low dispersion elements to minimize distortion and chromatic aberration. The lens is lightweight and durable with an all-metal build and multicoated design for clarity.
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AstrHori 10mm f/8 II for Leica M Overview
AstrHori 10mm f/8 II for Leica M Specs
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AstrHori 10mm f/8 II for Leica M Reviews
Love the size, results are better than expected but there are issues.
By William
Rated 3 out of 5
Date: 2026-02-02
There are two versions of this lens: this one is in a Leica M mount and is fixed focus, the other comes in E/X/L/M43 and has a focus helicoid. I decided on Leica M because I use M43 OM and APS-C/FF Sony bodies as well as a Leitz-Minolta CL film camera. I already own adapters for Leica M lenses so I picked this version, also it was $20 cheaper. Focus seems set at about 3m/10' so is fine for quick, snap shots. Still reasonably sharp at about 1m/3', but drops off significantly closer than that. The version with a focus ring would be superior for anything closer. It is an aps-c design, so there are significant dark corners when tried on FF, although it produces a very nice square image crop on FF. Haven't shot any film with the CL yet, but plan on trying soon as it makes for an incredibly small combo. Was pleasantly surprised to find that the rear element clears the swinging meter arm in the CL. While it isn't quite as wide an image on MFT as on APS-C, the corners are definitly better. Optically, this is the main drawback. I also have the LAOWA 4mm/2.8 which has a significantly wider field of view and better corner resolution. But the LAOWA is much larger and also much more expensive. If I were to make a decision today, knowing what I know from using it, I would have paid the extra $20 and ordered the lens in MFT mount to gain the focus ring. The only real advantage is the even smaller size or if you own a M body camera that allows for an APS-C crop.
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