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William Optics ~4" Diameter Extension Tube with 2" Extension for FLT Series Refractors # P-EXFLT

5.0 (1 Reviews) Read Reviews Write Review
Brand William Optics
Part Number P-EXFLT
Availability available

Product Info

Manufacturer Description

This practical extension # P-EXFLT is very useful if you use a CCD or need more drawtube extension without any flexing for William Optics' FLT 110 and FLT 132 telescopes. Fully anodized, and compatible with other similar telescopes. Male & female thread. Fits William Optics' TMB field flattener for FLT. To mount on the telescope, simply remove the 2" nosepiece adapter from the scope and thread the extender in.

Please note that the manufactutrer refers to this item as a "4in. Extension" although neither the tube diameter nor the extension provided is 4".


  • Outside diameter = 96.8mm (3.81")
  • Total length = 58mm (2.28")
  • Extension provided = 50mm (1.97")


5.0 (Based on 1 Reviews) 100% of reviewers recommended this product.
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    1. Guest

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      User Notes:
      Review by L.Burgess of Canada.
      Sep 23, 2012

      5.0 Also fits 120 Megerz


      Strong Construction,Easy to Use



      This is much better than a 2" extension tube since it is the full size of the focuser and threaded on.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

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