Corrections
If a figure here is wrong — a filter diameter, a mount, an aperture range, a guide number, a stabilisation rating, a declared load, a price band, or a claim about how something behaves — write and say so. We check it, correct it, and record on the page what changed. Nothing you can send us is more useful, and nothing moves faster.
Questions about equipment
Every one is read, and as many as possible get a reply. A question that keeps arriving usually ends up as a page of its own, which reaches far more people than any private answer could.
Brands and PR
Technical documentation, datasheets, compatibility lists and corrections from manufacturers are welcome and get used. What will not happen, stated plainly: no payment buys coverage here, no loan guarantees a review, and no post on this site is sponsored. Sending us a lens reserves no place in a ranking, and an approach offering one goes unanswered.
How to reach us
The address is buissonjeanbenoit9 (at) gmail.com. That inbox has a single reader, so a reply can take a few days.
Please send nothing confidential. These are editorial pages rather than a service: warranty claims, sensor cleaning, returns and orders belong with the shop the equipment came from, and none of them can be dealt with here.
Last reviewed 12 September 2026