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    Default Need advice camera to scopeAny recommendation



    Hi all.
    I have an Orion 16” XXG , my son wants to connect his Cannon EOS T7i to the scope for some snap shots from time to time. Thinking about a kit for prime focuse and with eye pieces also.
    Not mention names but it seem most stores out there won’t answer the phone to get info.
    There more knowledge here anyways.
    I know nothing about camera mounts for scopes , And my son knows nothing also.
    I know we need a T Ring adapter and a Barlow lenses (being a reflector scope.)
    Anyone recommend a kit.
    Should I be looking at 1.25 or 2”
    Thanks Rob
    Last edited by rseasy1; 01-13-2020 at 03:06 PM. Reason: More info
    Too many hobbies ,Some for day time some for night.
    Orion 16" F4.4 go to Home built 10" F/5
    Mead supper pollsel eye pieces ES 8.8mm 18mm ES.
    Clarjo observatory 12x16 roll off.

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    KathyNS's Avatar
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    Default Re: Need advice camera to scopeAny recommendation

    You will be quite limited in what you can do. At least you know that you will need a barlow to achieve focus. In addition to the T-ring, you will need a T-adapter. There are several types. Usually, for a Newtonian, you want a zero-length adapter. However, it is possible that the barlow might extend your focus enough that you need a universal adapter. I would recommend staying away from eyepiece projection. It seriously complicates the setup, it tends to over-magnify, and it is hard to focus.

    With the camera attached, you will be able to take short exposures. Your maximum exposure will be around 30 seconds. Your goto system will track objects, but the alt-az mount cannot compensate for field rotation, which is what imposes the limit. And you will be imaging at f/8.8, instead of the scope's native f/4.4, which means that your 30-second exposure will look like a 7.5-second exposure. It should be fine for the Moon or planets, but might be frustrating for anything else.

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    Newtonian Astrograph; ATIK 383L+; EFW2 filter wheel; Astrodon Ha,LRGB filters; KWIQ/QHY5 guide scope; Planetary AP: Celestron C-11; ZWO ASI120MC; Portable: Celestron C-8 on
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