How do I use a camera and Barlow with a Celestron 8 edge HD?

[John C]

I imaged Jupiter for the first time this week. I used a canon 60d DSLR and a Celestron 8 edge HD.

The canon was set on movie crop mode which is 640 x 480 at 50fps.

The exposure was1/500s at ISO 800. I don't think the seeing was good, there was some haze.

The trouble is Jupiter is only 60 pixels across, so how could I attach a Barlow and camera to the telescope? I don't want the expense of a powermate.

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[michael.h.f.wilkinson]

You can attach a regular Barlow to the scope just like you attach you EP, and the attach the camera to the Barlow using a 1.25" to T2 adapter plus your T2 to Canon adapter.

[John C]

I've found another thread on this subject. It looks rather complicated and unsatisfactory . What about using the eyepiece projection kit made by Celestron?

http://www.celestron.com/browse-shop/astronomy/astroimaging-accessories/other-astroimaging-accessories/deluxe-tele-extender

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[John C]

You can attach a regular Barlow to the scope just like you attach you EP, and the attach the camera to the Barlow using a 1.25" to T2 adapter plus your T2 to Canon adapter.

I hadn't seen your post when I said it was too complicated, perhaps it's not so complicated as I thought.

Celestron make a universal Barlow with a T adapter attached so perhaps I could try that?

Thanks for your post

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[michael.h.f.wilkinson]

That should also work

[PeterCPC]

If you use Backyard EOS with your Canon you can also use the 5X zoom feature of BYE to increase the image scale.

Peter

[John C]

Is the 5x zoom a digital zoom in Backyard EOS? If so, wouldn't it be better to use an optical method of increasing the image size. I'm not sure what the BYE feature is.

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[John C]

What I mean is, doesn't a digital zoom keep the same resolution as the original image?

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[PeterCPC]

On the BYE forum it states that:  5X live view zoom provides the best possible quality because it is a 1:1 pixel resolution, meaning 1 pixel on the sensor = 1 pixel on the final image.

Peter