SUMMARY
The Thypoch Simera 75mm f/1.4, an all-metal manual focus lens for Leica M mount, delivers sharp center detail wide open on full-frame cameras like the Nikon Zf. While corners lag initially, the lens achieves corner-to-corner sharpness by f/4. On Fujifilm APS-C bodies, the lens appears softer wide open, requiring an f/2 aperture to match the Zf's f/1.4 performance. The lens exhibits focus breathing and lacks weather sealing, requiring caution in wet conditions. It offers a de-clickable aperture for video use and a 60 cm minimum focus distance.
TAKEAWAYS
Sharp center performance wide open on full-frame, softens on APS-C.
All-metal build with de-clickable aperture for video.
Focus breathing and lack of weather sealing are drawbacks.
Achieves corner-to-corner sharpness by f/4 on full-frame.