9748304

Focal length, mm: -42
Edge thickness, mm: (3.1)
Surface quality, S-D: 40-20
S1 Flatness, PV IR S2 Flatness, PV: <λ/4 @ 632.8 nm
ROC S1, mm: -19.21 (±0.5%)
Protective chamfers: <0.25 mm x 45°
Center thickness, mm: 2 (±0.1)
Dimensions, mm: Ø12.7 (+0/-0.1)
Wavelength, nm: 632.8
Clear Aperture: >90
Centration error: <3 arcmin
Material: UVFS (Corning 7980 0F)