NUV Plan Apo 50X/0.7 Objective – Near Ultraviolet Optimized, Infinity Corrected Plan Apochromat, 95mm Parfocal, M26 Thread

The NUV Plan Apo 50X/0.7 is a premium infinity corrected plan apochromatic microscope objective specifically optimized for the near ultraviolet (NUV) spectral range (typically 355–700 nm). With an exceptionally high numerical aperture (NA) of 0.7 and a magnification of 50X, it delivers diffraction‑limited resolution (~0.47 µm at 400nm) and outstanding image flatness, making it ideal for demanding applications such as photomask inspection, semiconductor wafer defect review, UV laser material processing observation, and fluorescence microscopy.

Key Specifications :

• Magnification: 50X
• Numerical Aperture (NA): 0.7
• Optical Design: NUV Plan Apochromat (infinity corrected)
• Tube lens focal length: 200 mm
• Parfocal distance: 95 mm
• Thread: M26 x 1.70 (mechanical drawing) – standard for many industrial microscopes
• Working Wavelength: Optimized for NUV to visible (e.g., 355–700 nm; UV laser lines at 355 nm, 532 nm, etc.)
• Immersion medium: Air (typical)
• Overall length: 96.51 mm (approx.)
• Outer diameters: Ø32.2 mm, Ø32 mm
• Alignment features: 15 mm step, 5 mm reference