Sirui Venus T2.9 1.6x Full-Frame 3-Lens Set

The 1.6x anamorphic magnification means that the lens captures a wider field of view horizontally than a standard spherical lens of the same focal length. This horizontal expansion is 'squeezed' by a factor of 1.6x, requiring de-squeezing in post-production to achieve a standard 16:9 or 2.35:1 aspect ratio.

Yes, while designed with filmmaking in mind, these lenses can also be used for still photography to achieve unique anamorphic aesthetics, including oval bokeh and distinctive flares.

These lenses are manual focus lenses. Autofocus functionality is not supported.

The product information does not specify filter thread sizes for these lenses. Please refer to the individual lens specifications if available, or measure the front element diameter for appropriate accessories.

The blue streak flares are a characteristic of anamorphic lenses. They are most prominent when a bright, direct light source (like headlights or a strong artificial light) is positioned within the frame, slightly off-center, and the lens is set to a wider aperture.

Specific minimum focusing distances are not provided in the product data. Refer to individual lens manuals or product pages for detailed specifications.

The product information does not specify if these lenses are parfocal. Anamorphic lenses often exhibit focus breathing, which is a change in focal length as focus is adjusted.

Ensure you are using a compatible Sony E-mount camera. Check for any obstructions on the camera mount or lens mount. Verify the lens is aligned correctly with the camera's mount indicators before turning to lock.

This is normal for anamorphic lenses. The image requires de-squeezing in post-production software (e.g., Adobe Premiere Pro, Final Cut Pro) by setting the correct aspect ratio or applying a specific de-squeeze effect.

Ensure lens elements are clean. Check that the lens is properly focused. Be aware that strong direct light sources are necessary to produce the characteristic flares; try adjusting shooting angles relative to light sources.

Ensure the aperture is set to its widest (lowest f-number) and that the background is sufficiently out of focus. The oval shape is most pronounced at wider apertures and with subjects at a moderate distance from the background.