AstroTech Field Flattener Extender Tube (19647)


AstroTech Field Flattener Extender Tube (19647)

Regular price
$ 95.00
Sale price
$ 95.00
Unit price

This item is out of stock but you can place an order now and we’ll ship when it becomes available.


The #19647 Field Flattener Extender Tube allows insertion of AstroTech Field Flattener lenses behind Optec equipment with OPTEC-2300 receivers, such as the TCF-S and the IFW.


  • Outside Diameter:  2.69" (68.3mm)
  • Overall Height: 1.54" (39.1mm)
  • Clear Aperture:  1.7"  (43.2mm)
  • Weight: 3.68 oz (104.3 g)
  • Back-focus Usage: 1.29" (32.8mm)
  • Telescope Side Connection: OPTEC-2300 Dovetail
  • Camera Side Connection::  OPTEC-2300 Receiver

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