KB spacer, set of 2

These fit perfectly in my imaging train for the FSQ-80FC, and the metal finish has a nice, solid feel to it. Having a set of two gives me the flexibility to dial in the exact spacing I need.

Machined really precisely—these spacers fit perfectly into my imaging train without any wobble. I was worried about alignment but they locked down solid on the first try.

Bought these alongside the FSQ-80FC and they thread on with zero slop, which is exactly what you want for spacing. Two blocks in the set meant I could set up both configurations without ordering twice. Backfocus landed right where it should.