Light Glass Optics
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 Alignment Telescopes / Optical Tooling
 Thorlabs Outlet
 Line Tool Company
 New Focus
 Contrast Optical
 Melles Griot
 Microscopes- Leica, Mitutoyo, etc.
 Other Optics Items
 Collectible Optics
 Optical items on Sale!


 Lightglass Optics is where you can find the largest selection of Newport, Line Tool Company, OptoSigma, Thorlabs and other manufacturers of fine optomechanical equipment. By selling pre-owned equipment, Lightglass Optics can fill your Optical Research equipment needs at a substantial discount- saving those precious budget dollars. In addition, we have more Alignment Telescopes on our shelves than anybody else..anywhere!- currently over 100 - made by Keuffel and Esser (K&E), Brunson, Cubic Precision, Davidson Optronics, Engis, Taylor-Hobson and others. We also have supporting Optical Tooling to go with them. Just click on any line item to go to the page for that item.
 71-4030 K&E Straightness of Line of Sight Collimator-
71-4030 K&E Straightness of Line of Sight Collimator-
71-4030 Straightness of Line of Sight Collimator
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2 In Stock
The K&E 71-4030 Straightness of Line of Sight Collimator is used in the testing and adjusting of Optical and Survey instruments. The 71-4030 has 7 internal reticles which are used to simulate distances of 0',4' , 10', 25', 50', 100' and infinity. This instrument can be used to check the straightness of the line of sight on any sighting telescope from minimum focus to 100 feet.

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Davidson Optronics D-623-105 Calibration Wedges, 50.0" deviation
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