ET050 2 吋延長管 - 延長 50 公釐

Finally, a 2" extension tube that doesn't wobble or feel cheap. The M48 thread on the insert is machined precisely enough that my filter screws on without any binding. I needed exactly 50mm of extra focus travel for a macro project and this solves it perfectly.

The M48 x .75 threads on the insert tube are machined cleanly, so screwing it onto my focuser took zero effort. Gives me that extra 50mm of rear travel I needed without any wobble once locked down.

Finally found a solid 2" extension that doesn't wobble—the compression ring locks down tight, and the M48 thread on the insert is machined clean. Adds exactly 50mm of rear travel, which solved my back-focus issue perfectly.