A truly wide-angle prime featuring a rectilinear optical design, the silver Pentax K-mount Laowa 12mm f/2.8 Zero-D from Venus Optics is specifically meant to limit distortion for clear and accurate portrayals of landscapes and architectural subjects. The optical construction also incorporates a pair of aspherical elements and three extra-low dispersion elements to control both spherical and chromatic aberrations for improved sharpness and reduced color fringing. A Frog Eye Coating has been applied, too, to repel dust and moisture from the front element of the lens to benefit working in trying environmental conditions. Benefitting the optical attributes, this lens also features a precise manual focus design along with a floating optical system to maintain accurate rendering throughout the focus range, from 7.09" to infinity. Additionally, a petal-shaped lens hood is also incorporated into the lens' design to reduce flare and ghosting when working in strong lighting conditions.

K-Mount Lens/Full-Frame Format    Aperture Range: f/2.8 to f/22    Three Extra-Low Dispersion Elements    Two Aspherical Elements    Rectilinear Design, Low Distortion    Frog Eye Dust & Water-Repellent Coating    Manual Focus Design    Floating Optical Design    Built-In Petal-Shape Lens Hood

Ultra wide-angle prime designed for full-frame Pentax K-mount DSLRs, this 12mm f/2.8 can also be used with APS-C models where it provides an 18mm equivalent focal length.

Bright f/2.8 maximum aperture is well-suited to working in low and difficult lighting conditions.

Rectilinear design renders subjects with minimal distortion in order to suit landscape and architectural applications.

Three extra-low dispersion elements reduce chromatic aberrations and color fringing for increased clarity and color neutrality. Two aspherical elements are also featured to limit spherical aberrations for improved sharpness.

A Frog Eye Coating has been applied to repel both dust and moisture for added protection when working in inclement conditions.

Manual focus design employs a floating optical system to maintain performance throughout the focusing range of 7.09" to infinity.

Built-in petal-shaped lens hood shields the lens from stray light to reduce flare and ghosting and also protects the front elements from accidental impacts.

Related Questions and Answers

Q: 1. How does this lens perform when adapted to other cameras like Sony A7iii or Panasonic S1?

A: Both the a7III and the Panasonic s1 are going to work best with native lenses without adapters in terms of auto focus. But because this is a manual focus lens I trust that you are not looking for auto focus. For the price this is an excellent manual focus lens for either camera.

Q: 2. Is this lens for Canon RF is the same as for Canon EF with just a different bayonet, or is it a native lens redesigned for RF? Will it make any differences compared to an EF version on EF to RF adapter?

A: Yes, these are the same lens, just with different lens mounts. Optically they are the same. There should be no difference between using the RF mount, or using the EF mount with a good adapter.

Q: 3. The question is will these fully manual lenses work on EOS R cameras with one of the three adaptors? There is a report of the EOS R not firing because it didn't see a lens.

A: Since this lens has no contacts, you will have to go into the camera's menu and select shoot without lens, which will allow you to fire the shutter for a lens of this type.

Q: 4. Is this for full-frame or cropped sensor?

A: This is a full frame lens.

Q: 5. Is there any lens hood with this lens?

A: There is no additional lens hood that comes with the Venus Optics Laowa 12mm f/2.8 Zero-D Lens for Sony E because it has a built-in lens hood.

Q: 6. Anybody have any experience with the bmpcc4k using metabones?

A: This is a full frame Manual lens therefore it is compatible with all of the Metabones adapters (standard MFT to EF as well as the 0.71x and .064x speed boosters).

Q: 7. Is there a MSC for Canon RF mount?

A: Not currently. Unfortunately this is only currently available for the Sony E-Mount.

Q: 8. Anybody try this lens on a Nikon D850? If so, how does it work?

A: This lens would offer excellent performance when paired with the Nikon D850.

Q: 9. Does metering work properly when stopping down the lens using a canon dslr? The lens has no cpu contacts.

A: Yes one can use stop-down-metering on most Canon SLR cameras with the Venus Optics Laowa 12mm f/2.8 Zero-D Lens for Canon EF (Black).

Q: 10. I get severe distortion on both sides of images in the form of stretching. Is anyone else having this issue or do I have a defective lens?

A: That sounds like perspective distortion. That is normal. For example ceramic tiles on a wall will look larger, distorted, and stretched in the sides of the photo, but in the center they will look normal. That is perspective distortion. That is the same as going on the bottom of a large building, looking up, and the sides of the building look like they are converging instead of being straight. The zero distortion this Venus Optics Laowa 12mm f/2.8 Zero-D Lens has is barrel distortion.