Samyang's ultra-wide for Sony APS-C — the manual 10mm f/2.8 for landscape and astrophotography.
The Samyang 10mm f/2.8 NCS CS is an ultra-wide manual-focus prime from Samyang for Sony E-mount APS-C cameras, providing a 15mm full-frame equivalent field of view. NCS (Nano Crystal coating) reduces flare and ghosting, and CS (Crop Sensor) confirms the APS-C image circle designation.
The lens delivers 10mm (15mm equivalent on APS-C) at f/2.8 maximum aperture with NCS coating for flare suppression, fully manual focus and aperture operation, Sony E-mount coupling without electronic communication, and an APS-C-only image circle. Build quality is a mix of metal barrel and plastic internals.
At 10mm on APS-C the Samyang provides an extremely wide field of view suited to interior photography, landscape, and environmental contexts where maximum foreground inclusion is the goal. The NCS coating is a meaningful improvement over uncoated ultra-wides for shooting near light sources. Manual focus is practical at 10mm where hyperfocal distance is reached at close apertures.
Check focus ring smoothness. Inspect NCS-coated front element for any cleaning marks — the coating is valuable and damage reduces flare suppression. Verify aperture ring detents. Test for vignetting at f/2.8 on APS-C bodies. Confirm no electronic contacts limit EXIF recording on the Sony body.