N°108096 · Family detail
SamyangMirror·CANON EF-M mount
Samyang Reflex 300mm F/6.3 ED UMC CS / Rokinon Reflex 300mm F/6.3 ED UMC CS
Specifications01
MountCANON EF-M
Focal length300mm
Max aperturef/6.3
TypeMirror · Telephoto · Prime
Weight318 g
Physical length74 mm
Min focus distance90 m
Summary02
Reflex/mirror telephoto lens with a fixed 300mm focal length and f/6.3 maximum aperture, intended for distant subjects on Canon EF-M mount. It uses a mirror-based optical design for compact size.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Canon EF-M mount has a flange distance of 18 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- Native lenses set the aperture, and often the focus, electronically. On a plain adapter they do not work. Use an electronic adapter made for this pair; for many pairs nobody makes one. Fully manual lenses are the exception.
- Nikon ZAdapter · 2 mm
Covers APS-C: it can vignette on a full-frame sensor.
- Canon EF-MNative
No plain adapter reaches infinity focus on: Sony E, Canon RF, Fujifilm X, L-Mount, Micro Four Thirds, Fujifilm G (GFX), Canon EF, Nikon F.
Sources03
dpreview.comVisit ↗
Other Mounts03
This lens family is also indexed in 7 other mounts.
CANON EFView lens
Samyang Reflex 300mm F/6.3 ED UMC CS / Rokinon Reflex 300mm F/6.3 ED UMC CS
CANON EF-SView lens
Samyang Reflex 300mm F/6.3 ED UMC CS / Rokinon Reflex 300mm F/6.3 ED UMC CS
FUJIFILM XView lens
Samyang Reflex 300mm F/6.3 ED UMC CS / Rokinon Reflex 300mm F/6.3 ED UMC CS
MICRO 4/3View lens
Samyang Reflex 300mm F/6.3 ED UMC CS / Rokinon Reflex 300mm F/6.3 ED UMC CS
MINOLTA/SONY AView lens
Samyang Reflex 300mm F/6.3 ED UMC CS / Rokinon Reflex 300mm F/6.3 ED UMC CS
NIKON F DXView lens
Samyang Reflex 300mm F/6.3 ED UMC CS / Rokinon Reflex 300mm F/6.3 ED UMC CS
SONY EView lens
Samyang Reflex 300mm F/6.3 ED UMC CS / Rokinon Reflex 300mm F/6.3 ED UMC CS