As always OPT delivered a high Quality product in a timely fashion. The advice given was top hole and the product worked as advertised.

I called OPT to confirm the T-Ring I found on their website that I thought I needed. The salesman told me I was about to order the wrong size T-Ring so he accepted my order for the correct size. The T-Ring arrived in the mail in a couple of days and fits fine. A simple phone call saved me a LOT of returning and reordering.

I ordered and it arrived perfectly. Why not five stars?

Excellent product fit no problem

O.P.T.,there's just nobody better in the industry. Best product's, best support team,best company...simply put,they're the best. Have purchased a couple of the Canon eos adapter rings. They work PERFECT! For all eos slr's and dslr's. Don't waste your money on other more expensive product's that may not fit correctly. The AWESOME people of o.p.t. use these product's so they know what work's and what work's Great! So they sell what work's great! Thank you o.p.t. for being so AWESOME! DEAN Janson President and co-founder of The peoples astronomy club of Boise.

Overall good quality.