NiSi Athena Prime Set - L-Mount

Prime lenses typically offer superior optical quality, larger maximum apertures for better low-light performance and shallower depth of field, and often a more consistent and robust build compared to zoom lenses.

While the lenses are designed for full-frame coverage, they can be used on APS-C sensor cameras with an L-Mount. However, they will exhibit a crop factor, effectively providing a narrower field of view than their stated focal lengths.

A T-stop (Transmission stop) measures the actual amount of light transmitted through the lens, accounting for light loss within the lens elements. It is more accurate for exposure than an F-stop, especially for cine lenses.

Use a soft, lint-free microfiber cloth. If necessary, use a lens cleaning solution sparingly on the cloth. Always blow away loose dust particles first with a blower bulb.

While the quality is professional, beginners might find a set of prime lenses requires more adjustment to framing. However, the versatility and image quality make it a valuable long-term investment for serious enthusiasts and professionals alike.

Please refer to the official NiSi warranty documentation for specific details regarding the warranty period and coverage for this product.

Ensure the lens is correctly mounted to the camera body. Check if autofocus is enabled on the camera and if focus mode is set appropriately.

Verify the correct focal length is chosen. Ensure the aperture is not set too wide for the desired depth of field and check focus accuracy. Clean the lens elements if smudged.

This may indicate a need for professional servicing. Avoid forcing the rings. Contact NiSi support or a qualified technician.

Confirm the camera body supports L-Mount lenses and has the latest firmware installed. Re-mount the lens to ensure a proper connection.