Sigma FF High Speed 7 Prime Lens Kit - Canon Mount

This kit is designed for cameras with the Canon EF mount. This includes full-frame Canon EOS DSLRs and Cinema EOS cameras, as well as any other camera systems that utilize the Canon EF mount.

T-stop (Transmission stop) measures the actual amount of light transmitted through the lens, accounting for light loss within the lens elements. An f-stop is a theoretical ratio. T-stops are generally considered more accurate for cinematography, especially when matching exposure between different lenses.

Yes, these lenses are designed to deliver high resolution suitable for still photography and can be used on compatible Canon EF mount cameras. However, their primary design and features are optimized for video production.

The lenses are designed with a standardized color balance. Ensure your in-camera white balance is consistent, and utilize the consistent color rendition across the set for easier grading in post-production.

All lenses in this kit feature a standardized 95mm front diameter, making them compatible with most professional matte boxes and other front-mounted accessories.

These are prime lenses, meaning each lens has a fixed focal length. To change your field of view, you must physically move the camera closer or further from the subject.

Warranty information typically varies by region and retailer. Please refer to the product documentation or the point of purchase for specific warranty details provided by SIGMA CORPORATION OF AMERICA.

Ensure the lens is securely mounted to the Canon EF mount. Check camera body for any debris in the mount. Verify the camera is set to manual focus mode if electronic communication is an issue.

Manually adjust the focus ring until the image is sharp. Ensure the focus throw is set correctly for your desired depth of field. Check for any protective film or smudges on the lens element.

Confirm that the 'Standardized Color Balance' feature is relevant to your specific lens model and shooting workflow. Ensure consistent white balance settings are applied in-camera or during post-production.

This could indicate a need for professional servicing. Avoid forcing the ring. Contact SIGMA support or a qualified lens technician.

Ensure the aperture ring is properly set and that there is no electronic communication issue with the camera if aperture control is camera-dependent. For manual cine lenses, adjust aperture directly on the lens.