The black Samyang Reflex 300mm f/6.3 ED UMC CS Lens Canon EF-Mis a mirror lens designed specifically for use on Canon EOS EF-M mount cameras. The lens' Cassegrain design enables it to achieve a 480mm 35mm-equivalent focal length perspective within a compact and lightweight lens design that is significantly smaller than a traditional 300mm lens. It features a fixed f/6.3 aperture and manually focuses as closely as 2.95'.

One extra-low dispersion element and the inherent mirror construction of the lens work to eliminate chromatic aberrations while providing notable image sharpness and clarity. Furthermore, the UMC (Ultra Multi Coated) coating has been applied to reduce surface reflections, lens flare and ghosting while also contributing to improved overall contrast.

Canon EF-M Mount/APS-C Format    480mm (35mm Equivalent)    Fixed f/6.3 Aperture    Catadioptric Telephoto Lens    UMC Multi-Layer Anti-Reflective Coating    One Extra-Low Dispersion Glass Element    Manual Focusing as Close as 2.95'

Mirror lens designed specifically for Canon EOS EF-M mount cameras.

Catadioptric system with Cassegrain design helps to reduce the overall size of the lens while still providing a 35mm-equivalent focal length of 480mm.

One extra-low dispersion element and a UMC coating are integrated into the lens construction to improve sharpness and clarity as well as enhance the overall image contrast.

Related Questions and Answers

Q: 1. Hello - Will this lens fit a Fujifilm X-M1 ?

A: Yes. As long as you buy the Fuji version.

Q: 2. Is this lenses all manual (focus and iris)? Can it be used with BlackMagic 2.5k mount MFT?

A: The BlackMagic Cinema MFT mount camera requires use of manual focus and manually adjustable aperture lenses. The black Rokinon Reflex 300mm f/6.3 ED UMC CS Lens will mount on the camera but will not allow you to adjust the aperture of the lens as this lens has a fixed aperture of f6.3. The benefit of the camera using the MFT mount is the availability of adapters which will allow one to mount various manual focus/manual aperture lenses to the camera.

Q: 3. Can this use with tel converter?

A: Hi, teleconverters work best with lenses with a maximum aperture of f/2.8; this lens has a maximum aperture of f/6.3, so, although you could mount the lens to a teleconverter, there would be no autofocus or auto exposure.

Q: 4. I am really newbie to photography , just to confirm , this lens fits right to sony A6000 ?

A: Yes this will fit a Sony A6000.

Q: 5. Is this lens compatible with a LUMIX g85?

A: The manual focus Rokinon Reflex 300mm f/6.3 ED UMC CS Lens for Micro Four Thirds Mount (Black) is compatible with the Panasonic Lumix G85 Mirrorless Camera.

Q: 6. Is this lenses all manual (focus and iris)? Can it be used with BlackMagic 2.5k mount MFT?

A: The BlackMagic Cinema MFT mount camera requires use of manual focus and manually adjustable aperture lenses. The black Samyang Reflex 300mm f/6.3 ED UMC CS will mount on the camera but will not allow you to adjust the aperture of the lens as this lens has a fixed aperture of f6.3. The benefit of the camera using the MFT mount is the availability of adapters which will allow one to mount various manual focus/manual aperture lenses to the camera.

Q: 7. Is this lenses all manual (focus and iris)? Can it be used with BlackMagic 2.5k mount MFT?

A: The BlackMagic Cinema MFT mount camera requires use of manual focus and manually adjustable aperture lenses. The silver Rokinon Reflex 300mm f/6.3 ED UMC CS Lens will mount on the camera but will not allow you to adjust the aperture of the lens as this lens has a fixed aperture of f6.3. The benefit of the camera using the MFT mount is the availability of adapters which will allow one to mount various manual focus/manual aperture lenses to the camera.

Q: 8. I have mounted this lens for Canon M on to my Canon M50 and set the shooting mode to M, but no response in shooting, why?

A: You would need to set the camera in the Menu in the Custom Functions section to shoot without a lens. The function is called Release shutter w/o lens, it needs to be set to enable.

Q: 9. Will this work with an extender such as my KENKO C-AF1 1.5X DG?

A: I would not recommend this approach. Further, I would advise that the Canon 75-300mm lens may be a more desirable option, as it is more affordable, has autofocus, a faster aperture, and can be used with a teleconverter: http://bhpho.to/1nuVUxF

Q: 10. Hi is it work with sony full frame like a7 iii ? Or is it need adapter?

A: The Rokinon Reflex 300mm f/6.3 ED UMC CS Lens for Sony E Mount is designed for the Sony E-mount used on the Sony Alpha a7 III Mirrorless Digital Camera. No adapter is designed to connect the lens to the camera. However, do note that the Rokinon Reflex 300mm f/6.3 ED UMC CS Lens for Sony E Mount is designed for the smaller APS-C sensor. As such, you would need to use the APS-C Crop Mode when using this lens on your camera. You can access this setting by going to the MENU on your camera and going to [Camera Settings 1] → [APSC/Super 35mm] → [APS-C S35 Shoot: Manual] and [ON].