Dismiss Notice
New Cookie Policy
On May 24, 2018, we published revised versions of our Terms and Rules and Cookie Policy. Your use of AstronomyConnect.com’s services is subject to these revised terms.

More Views

Meade #1220 Field De-Rotator # 07456

4.0 (1 Reviews) Read Reviews Write Review
Brand Meade
Part Number 7456

Product Info

Manufacturer Description

Meade LX200 model telescopes may be operated in the altazimuth mode (i.e., without polar alignment) for all visual applications and for photographic or CCD imaging exposures of up to about five minutes duration. During longer exposures in the altazimuth mode, however, an effect called field rotation becomes evident. Simply put, even if the telescope is perfectly guided on a central star during a long exposure, stars at the edge of the field appear to rotate about the field center during the exposure.

Traditionally, field rotation with an altazimuth-mounted telescope has been cured with an equatorial wedge or other mechanical device that causes the polar axis of the telescope to be aligned with the celestial pole. The Meade #1220 Field De-Rotator was designed to simplify operations by eliminating the effects of altazimuth-induced field rotation without the use of an equatorial wedge or other mechanical device.

The #1220 Field De-Rotator is shipped fully assembled and ready to install onto the LX200 model telescopes. Once installed, operation of the Field D-Rotator is controlled by the telescope's on board computer and is fully automatic.


4.0 (Based on 1 Reviews) 100% of reviewers recommended this product.
Rating Distribution
Sort by
  • Date
  • Rating
  • Useful
    1. Guest

      Skill Level
      Time with Product
      User Notes:
      Review by litebkt of Mariposa, CA.
      Jan 6, 2011

      4.0 It's pretty much the only choice.


      Strong Construction,Compact



      This is pretty much the only choice for reticle eyepieces and for finder scopes. And it is only available here. I did purchase another brand a while back that had a flashing feature but it was big, bulky, and broke after first use.

      It would be nice for these things to turn off automatically after a few hours of non use. I just can't seem to remember to turn them off and I'm always replacing batteries.

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

      This review was provided courtesy of AgenaAstro.com

    Sort by
    • Date
    • Rating
    • Useful