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TEC APO 140 Prime Focus Field Flattener

Item # TC-020140

Availability: Special Order



Quick Overview

  • The TEC 140 APO Field Flattener is designed to correct the inherent optical issues of field curvature and off-axis astigmatism.
  • Design features to widely spaced lenses for the most efficient correction.
  • Edge of field distortion is less than 0.5%.
  • Designed for use with Pentax 6x7 or large format CCD cameras.

Field Flattener for APO 140 Features

  • Back focus distance of 85mm from flange to the focal plane.
  • Features BBar coatings to keep consistent with TEC telescopes' excellent quality.
  • Corrects field curvature and off-axis astigmatism, designed especially for use with large format cameras, like the Pentax 6x7.
  • Edge of field distortion is less than 0.5%.

The image shows the TEC 140 Field Flattener installed on the telescope's focuser. To see how it is installed and info on adapters that may be required to attach a camera to the flattener, take a look at the instruction manual, located in the "Images/Articles" section to your left.

SKU TC-020140
Manufacturer TEC
Barrel Size 2"
Warranty Not Supplied By Manufacturer
  • Field Flattener
  • Dust Caps
  • Lifetime Warranty

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