TTArtisan's ultra-wide for Sony APS-C — the manual 10mm f/2 fisheye-adjacent prime.
The TTArtisan 10mm f/2 is an ultra-wide prime for Sony E-mount APS-C cameras. At 10mm on APS-C, it provides a 15mm equivalent — extremely wide with some fisheye-adjacent characteristics depending on the specific optical design. The f/2 speed is fast for an ultra-wide, enabling astrophotography on APS-C.
Optical performance is basic but functional. The f/2 at 10mm on APS-C provides useful light gathering for night sky photography. Sharpness is acceptable in the centre. At this extreme width, distortion management is the key optical challenge. Build quality is solid metal. Manual focus — zone focusing is practical at this focal length.
Sony E mount, APS-C. Manual focus only — no electronics. Filter thread varies. Weight is approximately 200 grams — compact. No AF or EXIF. The extremely wide angle means depth of field is extensive — zone focusing at f/4 provides sharp images from near to infinity.
Available at very low prices. Check clean optics and focus. A budget entry to extreme ultra-wide APS-C photography. The f/2 enables basic astrophotography. The Laowa alternatives offer better distortion correction. Best for casual experimentation with extreme wide-angle perspectives at minimal cost.