20X Mitutoyo BD Plan Apo Objective

Product Details Ideal for Brightfield and Darkfield Microscopy Applications Long Working Distances and High Numerical Apertures Plan Apochromat Design Mitutoyo Brightfield and Darkfield (BD) Infinity Corrected Objectives offer long working distances with high numerical apertures. The high-quality plan apochromatic design allows these objectives to maintain high numerical apertures and contrast while correcting chromatic aberration in the visible wavelength region. These objectives feature M40 x 36TPI mounting threads. Mitutoyo Brightfield and Darkfield (BD) Infinity Corrected Objectives are optimized for both brightfield and darkfield illumination for applications including surface inspection and advanced life science microscopy. Specifications General Model Number: 378-834-7 Compatible Tube Lens Focal Length (mm): Focal Length: 200mm Type: Microscope Objective Style: Infinity Corrected Manufacturer: Mitutoyo Note: #18-653 or #18-652 are required for darkfield operation. Physical & Mechanical Properties Length excluding Threads (mm): 75.00 Maximum Diameter (mm): 44 Weight (g): 400 Optical Properties Compatible Cover Glass Thickness (mm): N/A Focal Length FL (mm): 10.00 Magnification: 20X Numerical Aperture NA: 0.42 Resolving Power (μm): 0.7 Depth of Field (μm): 1.60 Field of View, 24 Diameter Field Eyepiece (mm): 1.2 Working Distance (mm): 20 Wavelength Range (nm): 435 – 655 Parfocal Length (mm): 95 Immersion Liquid: N/A Sensor Maximum Sensor Format: 2/3″ Threading & Mounting Mounting Threads: M40 x 36 TPI Environmental & Durability Factors Operating Temperature (°C): +5 to +40 Regulatory Compliance RoHS 2015: Exempt × Certificate of Conformance: View × REACH 241: Contains SVHC(s) ×