Hey buys,
I have had a new run of prism pairs manufactured, this time with much better BBAR coating, so a little more expensive than previous times.
GLASS: BK7
CLEAR APERTURE (S1, S2): >90% OF FACE LENGTH AND WIDTH
SURFACE FLATNESS (S1, S2): λ/10 AT 632.8nm OVER CLEAR APERTURE
SURFACE QUALITY (S1, S2): 40-20 SCRATCH-DIG
ALL OTHER SURFACES FINE GROUND
ANGULAR TOLERANCE: 10 arcmin
DIMENSIONAL TOLERANCE: 0.25mm
COATING (S1, S2): BBAR (Ravg <0.5% 350-700nm, 0 AOI)
PL price $40AUD a pair