Davidson Optronics D-275 Autocollimating Alignment Telescope
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Davidson Optronics D-275 Autocollimating Alignment Telescope

This Davidson Optronics D-275 Autocollimating Alignment Telescope is used and in excellent condition. This unit comes in the original wooden case and includes a D416 power pack.

Model: D-275
Focusing Range: 16" (406 mm) to infinity (focusing knob)
Field: 26.0" at 100 feet
Measuring Range: 1° at 1 ft and ±10 arc minutes at 5 ft
D416 Power Supply
Autocollimating: Fifteen concentric circles 1 arc min apart (30 arc min field)
Alignment: Cross hair with 0.000 25 inch (6.5 µm) wide lines

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Product Family: 6650-00-815-1579 6650008151579

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Stock # 73787-1
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Davidson Optronics D-275 Autocollimating Alignment Telescope

  • Telescope for Simplest, Most Accurate Alignment
  • 2-Axis Perpendicularity to Line Of Sight Through Autocollimation
  • Low Cost to Permit Semi-Permanent Installation in Fixture
  • Annular Rings and Crossed-Line Reticles Allow Uncluttered View of Reference
  • Hardened Stainless Steel Telescope Tube
  • Certification of Accuracy Traceable to NIST


The Model D-275 Autocollimating Alignment Telescope can be focused from 16 inch (406.4 mm) to infinity, to align any number of points along its optical axis. Due to the fact that the mechanical axis of the tube and the optical axis of the instrument are parallel within 3 arc seconds, the instrument is easily adaptable to jigs and setups using a dial indicator.

A reflective surface may be established normal to the optical axis by utilizing the autocollimating feature. The Model D-275 provides the most-pertinent features at a low price.

The Model D-275V incorporates a video option with the alignment telescope, allowing the user to view the image of objects and alignment patterns on a video monitor. The D-275V includes a video camera, monitor, relay lens, mounting brackets and all connecting cables.

Product Family: D275, D-275, D 275, Davidson D275, Davidson D-275, Davidson D 275

Important Notice: Please note that any additional items included with this equipment such as accessories, manuals, cables, calibration data, software, etc. are specifically listed in the above stock item description and/or displayed in the photos of the equipment. Please contact one of our Customer Support Specialists if you have any questions about what is included with this equipment or if you require any additional information.

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Davidson Optronics D-275 Autocollimating Alignment Telescope

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Manuals, Datasheets, Drivers, Links

Davidson Optronics D-275 Datasheet (pdf) 
Link to Davidson Optronics Website 

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