Optec AP2.7 x 24tpi Extension Tube, ½” Length

Starting Price: $45.00
Price as Configured: $45.00
Brand: Optec / SKU: OP-19882
Optec's AP 2.7-inch extension tubes feature female threads on one end with male threads on the opposite end with knurled bases to help attach and detach these tubes. The extensions can be combined and stacked. Optec's four and five piece sets will provide all the needed extension for fixed focal length telescopes with 1/4" (6.35mm) increments using a minimum number of pieces. See "downloads" below for a table of the optimized spacer combinations.

All extensions and mounts are made from high strength 6061 aluminum alloy and black anodized. Anti-reflection threading and internal baffles on the largest extension tube help minimize internal reflections. All internal surfaces are painted and baked with a non-reflecting ultra-flat black paint.

AP2.7 Extension - 1/2" Length

Overall Height: 0.88" (22.4mm)
Clear Aperture: 2.52" (64mm)
Weight: 1.0 oz (30 g)
Back-focus Usage: 0.50" (12.7mm)
Clear Aperture: 2.52" (64mm)
QTY:  
Price as Configured: $45.00

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Diagram Download
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AP Thread Specifications Download
AP Thread Specifications
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Optec AP and DSI Spacer Extension Combinations Download
Optec AP and DSI Spacer Extension Combinations
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