FAQ, warranty and downloads

Support for products and partners

Compatibility guidance, warranty information, manuals and shipping support in one place.

Product compatibility

Provide your camera, lens model, focal length and filter diameter for a more accurate recommendation.

Hong Kong, Mainland China and overseas shipping arrangements are confirmed with each order.

Warranty support depends on purchase channel, market and proof of purchase. Contact us before returning any product.

Official product manuals and current catalogues will be listed with language, version and update date.

How do I confirm compatibility?

Send the exact camera and lens model plus the filter diameter printed on the front of the lens.

Can I see wholesale prices online?

No. Trade pricing is provided privately after the dealer application is reviewed.

Do you ship internationally?

International wholesale enquiries are welcome. Availability, documentation, shipping and local import requirements are confirmed case by case.

Where can I download a manual?

Downloads will be added after language, version and product status have been verified.