Extracted from Thorlabs LMU-40X-UVB AutoCAD PDF:
NOTES/SPECIFICATIONS:
1. FOCAL LENGTH [mm]: 5.2
2. NUMERICAL APERTURE (NA): 0.49
3. ENTRANCE PUPIL DIAMETER [mm]: 5.1
4. FREE WORKING DISTANCE [mm]: 0.8
5. PARFOCAL LENGTH [mm]: 34.4
6. OPTICAL FIELD NUMBER: 10
7. COVER GLASS THICKNESS [mm]: 0
8. AR COATING: Rmax < 1.5% (240 - 360 nm)
9. DAMAGE THRESHOLD: 5.0 J/cm² (355 nm, 10 ns Pulse, 20 Hz, 0.342 mm)
10. INCLUDED BUT NOT SHOWN: MICROSCOPE OBJECTIVE CASE
LMU-40X-UVB (UV Focusing Objective UVB), ITEM # LMU-40X-UVB