ProMaster 後蓋鏡頭蓋 – Nikon F

Took a tumble on a shoot and this cap stayed firmly in place the whole time, not a single scratch on the rear element since. For the price, it's a no-brainer—dust and smudges haven't been an issue, and it clicks on and off without any fuss.

Fits snugly on my Nikon F lenses and keeps the rear element dust-free between shoots, even after tossing them in my bag. The click when it locks on is reassuring, and it’s stayed put through a full weekend of hiking.

The plastic feels solid, not flimsy, and it snaps on with a reassuring click. I'm glad I finally bought a proper cap to keep the dust off when swapping lenses.