9675987

Focal length, mm: F=-60 (±3%)
Surface quality S1/S2, S-D: 10-5
S1 Flatness, PV IR S2 Flatness, PV: λ/4 @ 632.8 nm
S1 Flatness, PV IR S2 Flatness, PV: λ/4 @ 632.8 nm
ROC S1, mm: ROC=-27.42
Material: FS (Suprasil 2A)
Edge thickness, mm: 2.74 (±0.1)
Dimensiosn, mm: Ø12.7 (+0.0/-0.1)
Clear Aperture: >90
Centration error: <3 arcmin
Center thickness, mm: 2.0 (±0.1)
Protective chamfers: 0.3 mm x 45°