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Barlow lens for camera

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Posted (edited)

Hi folks,

I recently got hold of the new ZWO ASI 462MC Colour Imaging Camera and was testing it on Mars with my RC8 a few nights back. The RC8 focal length is 1600mm and I wanted to add my Baader 2.25x Barlow (for Zoom Hyperion) to the camera but when I did it was a complete image blackout!. To ensure the image didn't simply shift out of FoV at increased mag, I zeroed in on the centre of the moon but still a blackout. I'm all ready using all of the supplied iOptron RC8 extension tubes to achieve the required back focus. Any advice is greatly appreciated.







Edited by recceranger

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As you know a Barlow will extend the focal point further, so is often used to get focus with a camera on a Newtonian.

So you're going to need more spacers.

But even so the moon should have overexposed your camera, so something else wrong perhaps ?


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