--- type: product schema_version: 1 stock_number: "89719-2" canonical_url: "https://www.artisantg.com/89719-2/Photo-Research-MS-75" json_url: "https://www.artisantg.com/89719-2/Photo-Research-MS-75.json" generated_at: "2026-11-07T21:21:00.425Z" last_updated: "2026-10-14T13:00:51.160-05:00" --- # Photo Research MS-75 75 mm Macro-Spectar Objective Lens _Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._ ## Summary - Manufacturer: Photo Research - Model: MS-75 - Condition: Used and in Good Condition - Price: $295.00 USD - Availability: In stock, 4 available - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 2 lb, estimated - Shipping dimensions: 8X8X3 in, estimated ## Categories - Lab & Analytical > Microscopes > Objectives (primary) ## Details This unit has missing focus ring. ### Configuration - Focus Distance: 14" (35.5 mm)- 1000 ft (305 m) - Spot Size: 0.208" (5.25 mm) - 209" (5.32 m) - Sensitivity: ≥1.0-≤5,000 fl (≥3.4- 2) ## Function Macro radiometric objective lens designed for photometric and radiometric light collection from small to large targets, delivering focused light onto a detector for spectral-luminance analysis. Focus distance adjustable from 14 inches to 1000 feet, enabling macro to long-range measurements. Spot size capability ranges from 0.208 inches up to 209 inches, supporting high-precision local radiance sampling. Luminance sensitivity spans 1.0 to 5,000 foot-lamberts (3.4 to 17,000 cd/m^2), suitable for spectro-photometric measurement and calibration workflows. ## Images - - - - -