Telescope differential flexture3/31/2023 Although CCD guiding software can compute tracking errors to sub-pixel accuracy, many guide scope combinations have marginal or too-short focal lengths to be properly effective. Guiding occurs at the same focal length as the main imaging camera.Off-axis guiding corrects for this problem telescope has 4 arc minutes of differential flexure in its fork structure. Auxiliary guide scopes are blind to image shifting due to primary mirror “flop” in telescopes with moving primary mirrors (SCT’s). The pointing accuracy of even a perfect telescope will always be limited by.You can see two stacked images without alignment two hours apart (first and last picture. Differential flexure in guiding setups often introduces errors far worse than the actual corrections actually needed. Eliminates tracking problems caused by using a separate guide scope such as differential flexure and mirror shift, and also helps reduce imaging setup. Differential Flexure Description Here is a picture of my autoguiding problem.Guiding occurs with the same light path as the imaging detector thereby eliminating the effects due to differential flexure/slop of the auxiliary guide scope.This method is superior to using guide-scopes, which can flex with respect to the main telescope. It uses telescope optics directly for pinpoint guiding accuracy. This 2" low-profile Easy Guider features a large pick-off prism, making bright guide-star selection a breeze. is that you are effectively dumping the flexure movement on to your imaging scope. The Lumicon Easy Guider for 2" focusers is one of the most powerful astrophotography accessories available today, with the largest guide camera field of view available. Eliminates tracking problems caused by using a separate guide scope such as differential flexure and mirror shift. When I say flex, Im referring to the term differential flexure.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |