The 16mm f/2.0 ED AS UMC CS Lens for Four Thirds Mount from Bower is a manual focus wide-angle lens compatible with Four Thirds format digital cameras. It provides a 67.6° angle of view which translates into a 35mm format focal length equivalency of 32mm. Its fast maximum aperture of f/2.0 is effective in low light shooting and provides shallow depth of field. With two aspherical lens elements and high index low dispersion glass, chromatic aberrations are minimized and sharp, color-accurate images are the result. Multi-coating on all optical elements facilitates even light transmission and reduces ghosting and flare.

Four Thirds Mount Lens    For Four Thirds Sized Image Format    Aperture Range: f/2.0-22    32mm Equivalency in 35mm Format    Two Aspherical Lens Elements    High Index Low Dispersion Glass    Multi Coated Optical Elements    Manual Focus    Minimum Focus Distance of 7.8"

Wide angle focal length equivalent to 32mm in the 35mm format

Fast f/2.0 maximum aperture for effective low light shooting and shallow depth of field

Two aspherical elements and High Index Low Dispersion optics reduce aberrations.

Lens multi-coating allows even light transmission and minimizes ghosting and flare

Related Questions and Answers

Q: 1. Just purchased the Rokinon 16mm F/2.0 with Pentax K mount for my Pentax K-5 IIs body. With the aperture ring set to A, and setting to AV (also B, TAV modes), cannot get F stop to F2 (only goes to F4). Any suggestions? Already have an F4 lens, so getting to F2 is important. Thanks!

A: I believe the lens is defective. I would recommend contacting customer service to get a replacement.

Q: 2. hi, is there an improvement over the Samyang 12mm f/2.0 version in terms of image sharpness?

A: I didn't try the 12mm, but I can tell you, the 16mm is very sharp. That's one of the first things I noticed when I got mine.

Q: 3. how is this lens for indoor real estate photography in tight spots is there a lot of barrel distortion?

A: This lens is designed for Nikon camera with an APS-C sized sensor. So if you are using such a camera you will get great results with lens.

Q: 4. I'm seeing conflicting reports ... Will this lens work on a Nikon D5000 DX? Wanting it for night/astrophotography. Thank you!

A: Yes, Rokinon 16mm f/2.0 ED AS UMC CS for Nikon F Mount is fully compatible with Nikon DSLRs with APS-C sized image format such as your Nikon D5000. The lens is manual focus only therefore you will need to set your camera to manual mode (M), operate the aperture on the lens, and control the shutter speed and ISO on the camera.

Q: 5. Hello Good evening I would like to know if this lens is compatible with the Canon 7D Mark II , let me know as soon as possible.

A: Hi Sheilan,I use this lens with my Canon 7D Mark I, not the II. It works perfect with the I, but I am unaware of the II, I assume it would be just fine. The only thing you have to consider is that the 7D has the APS-C sensor and this lens is meant for UMC. The only thing this does when using this lens on the 7D is make the effective focal length 16mm*1.6 = about 25mm. So when this lens is used with the 7D consider it a 25mm focal length lens. Otherwise it works just fine and has been a great lens for me so far. Note that it is all manual too.

Q: 6. I am considering buying the Samyang 16mm f/2.0 ED AS UMC CS Lens for Sony Alpha camera. Is this a cine lens? Will I be able to use this lens to zoom in on a subject or is the lens a set focal length?

A: The Samyang 16mm f2.0 is a fixed focal length lens. It will not zoom.

Q: 7. Hi will this work with a GH4 through a metabones/ lens turbo focal reducer or is the EF-S thing a deal killer?

A: You could use the Rokinon 16mm f/2.0 ED AS UMC CS Lens for Canon EF-S Mount on the GH4 with a Metabones Speed Booster. Though, I would suggest using the 0.71X instead of the 0.64X to reduce the risk of vignetting.

Q: 8. I have the CANON EFs24mm STM that I use for Landscapes, is there an major increase in field of view with the 16mm, comparing to the 24mm field of view ?

A: That lens, the EF-S 24mm, is giving you over 38mm on a crop sensor, without knowing field of view, I'm not sure what you would end up with. I'm no expert on this, but I believe Canon always gives focal length in 35mm equivalent. But even at that length, you could use it for astrophotography, less field of view.

Q: 9. Will this Lens fit on Canon EOS 7D ? Thank you

A: The Rokinon 16mm f/2.0 ED AS UMC CS Lens for Canon EF-S Mount will fit on the 7D, yes. The 7D can use both EF and EF-S mount lenses.

Q: 10. Will I be able to use the in-camera manual-metering exposure system on a Nikon D7100 when using this lens?

A: Yes, when you set your aperture to the red f22, you will be able to use the sub command dial on the front of the grip, using your right index finger, to set and change your aperture and the exposure compensation button does function properly. Auto exposure has been very accurate on my d7100. The only thing missing is auto focus, which, in my opinion, would be almost useless anyway, with such a wide angle lens. Personally, I much prefer the big, smooth-turning, manual focus ring on this lens, to having auto-focus.