Laowa 20mm f/4 Zero-D Shift Lens for Pentax K - Venus

Yes, this lens is designed for full-frame cameras and supports the full +/-11mm shift range.

Yes, it features an 82mm filter thread at the front for standard circular filters.

As a manual lens, it generally does not transmit electronic aperture data to the camera, so you may need to set the focal length manually in your camera's menu for proper Shake Reduction.

Zero-D stands for Zero-Distortion, indicating that the optical design minimizes barrel and pincushion distortion to a near-imperceptible level.

While it is an architectural lens, the 14-blade aperture creates smooth bokeh that can be used for unique wide-angle portrait shots.

Ensure you are using the manual focus ring while zoomed into your live view screen, as focus peaking can sometimes be misleading on wide-angle lenses.

Vignetting can occur at extreme shift limits. Try stopping down the aperture or checking that no accessories are obstructing the lens path.

Ensure the locking screw is fully loosened before attempting to shift the lens mechanism.