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Hello everyone. I have a question about using a Barlow with a camera.
I have the Celestron EdgheHD 8″
So far I have shot planets without Barlow at 2032mm focal length. In order to get into focus, a back focus of 133.35mm is specified. Now to my question. How does the back focus behave when using a 2.5x Barlow? I wanted to use them in order like this: “Barlow filter wheel camera. Are spacers necessary and if so, where should they be used, before or after the Barlow? I think I read that I don’t need them and it’s quite simple Put the Barlow into the telescope, then the filter wheel into the Barlow and screw the camera directly onto it. What do you think? Thanks for your help and CS.
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