40X DIN Semi-Plan, Finite Intl Standard Objective

Product Details For Use with RMS Thread Microscopes AR Coated Optics 4X to 100X Magnifications Available International Standard Microscope Objectives can be used with most major brands of microscopes that utilize RMS mounting threads. Our product offering features DIN 45mm standard objectives with achromatic and semi-plan designs. The achromatic design ensures proper color correction for broadband white light sources, while semi-plan designs have an added feature to create a flatter image field. International Standard Microscope Objectives include AR-coated optics to ensure maximum transmission and reduce internal reflections in the optical assembly. All 20X to 100X objectives have spring-loaded (retractable) front ends to prevent slide damage. Note: Oil immersion is recommended for all 100X objectives with an NA higher than 1.0 (part number #86-834 ). Specifications General Compatible Tube Lens Focal Length (mm): Focal Length: 160mm Type: Semi-Plan Style: Finite Conjugate Note: Designed to include a cover glass with 0.17mm in thickness Physical & Mechanical Properties Field of View (mm): 0.5 Length excluding Threads (mm): 44.40 Maximum Diameter (mm): 25 Weight (g): 83.4 Optical Properties Design Wavelength DWL (nm): 546 Focal Length FL (mm): 4.00 Magnification: 40X Numerical Aperture NA: 0.65 Depth of Field (μm): 1.89 Field of View, 18 Diameter Field Eyepiece (mm): 0.45 Working Distance (mm): 0.45 Wavelength Range (nm): 400 – 700 Field Number (mm): 20 Parfocal Length (mm): 45.05 Immersion Liquid: N/A Threading & Mounting Mounting Threads: RMS / 20.32mm x 36 TPI Environmental & Durability Factors Operating Temperature (°C): +10 to +40 Operating Humidity: Max 85% at 35°C with no condensation Regulatory Compliance RoHS 2015: Compliant × Reach 223: Compliant × Certificate of Conformance: View ×