WO Z61用バーチノフマスクカバー (CPBM-61)

The cutouts are perfectly spaced—the diffraction spikes on my test star shot came out razor-sharp on the first try. Fits snugly over the dew shield without any wobble.

Finally got perfect focus on my first try with this mask—the diffraction pattern is so much clearer than using a regular focusing routine. It’s nice that it doubles as a dust cover too, so one less thing to misplace.

Fits my Z61 perfectly—the Bahtinov pattern snaps into sharp focus almost instantly, and it doubles as a snug dust cover when not in use. Makes critical focusing feel almost effortless, even for a beginner like me.