24 Inch Dynaflect Transmission Flat

This flat is surprisingly precise given its large diameter — the 1/10 wave PV surface makes alignment checks feel almost automatic. I only wish it came with a storage case, but for the price I'm not complaining.

I had my doubts about the 24-inch size, but the 1/10 wave PV precision is incredible for aligning my test bench. It feels solid and the reflection is crystal clear.

Finally had a chance to test the 24-inch transmission flat against a calibration standard and the surface quality is right on the money. The 1/10 wave PV figure seems accurate from what I can measure, and the size is great for larger optics work.