--- type: product schema_version: 1 stock_number: "62453-2" canonical_url: "https://www.artisantg.com/Scientific/62453-2/Davidson-Optronics-D-271-Autocollimating-Alignment-Telescope" json_url: "https://www.artisantg.com/Scientific/62453-2/Davidson-Optronics-D-271-Autocollimating-Alignment-Telescope.json" generated_at: "2026-11-07T01:16:24.066Z" last_updated: "2026-10-21T19:05:43.280-05:00" --- # Davidson Optronics D-271 Autocollimating Alignment Telescope _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: Davidson Optronics - Model: D-271 - Condition: Used and in Excellent Condition - Price: Quote only - Availability: Not in Stock - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 40 lb - Shipping dimensions: 24X12X12 in ## Categories - Lab & Analytical > Microscopes (primary) ## Details This Davidson Optronics D-271 Autocollimating Alignment Telescope is used and in excellent condition. This unit comes in the original wooden case, with the Model D-416 Power Pack. Model: D-271 Focusing Range: 6" to infinity (focusing knob) Field: 3/4" at 1 foot, 3.5" at 5 feet, 12.0" at 15 feet Nulling Repeatability: ±0.5 Arc Seconds or Better Measuring Range: 1° at 1 ft and ±10 arc minutes at 5 ft 115 V Power Supply: Model D-416 Power Pack, Variable from 0 through 6 Volts DC Autocollimating: Projects center dot with 1 arc minute ring graduations (± 30 arc minutes) Alignment: Cross hairs with 0.0005" wide lines ## Images -