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Thread: Sony Cyber Shot DSC-85S Digital camera

  1. #1
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    Default Sony Cyber Shot DSC-85S Digital camera



    To start off, I know absolutely NOTHING about AP (so please be gentle!). I have the above digital camera. It claims 4.0 effective mega pixel and an image size of 2272X1704. The Carl Zeiss Vario-Sonnar lens diameter is just .040" shy of 2" so I can easily fit it to a 2"diagonal. My question is, when I get my new SV-102 access refractor will I be able to use this camera to get my feet wet? Thanks, Bill
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    Default Re: Sony Cyber Shot DSC-85S Digital camera

    You have two choices:
    1) You can shoot AFocal by getting a bracket that will mount and hold the camera above the eyepiece.
    2) You can shoot piggy-back by mounting it on top the scope and just shoot with the camera alone. This way you are using your mount for tracking.

    Point and Shoot camera's are a very poor choice for AP. Why you ask?
    1) You need to be able to be able to remove the camera lens (like a DSLR) and replace it with a t-adapter and nose piece. This way you can mount the camera direct to the scope in place of the eyepiece and diagonal. This is called Prime focus.
    2) Because it is not supported by any of the AP software. You want something the can be controlled by a computer, display a live image for focusing, be able to take a series of long exposures and be able to capture direct to the PC so you can do plate solving. So you are basically limited to Canon and Nikon DSLR's or dedicated AP camera's. It's not that other camera's can't be used, it's just they will be much more difficult to do AP with.
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    Default Re: Sony Cyber Shot DSC-85S Digital camera

    Thank you for the explanation. One more quick question. Since the camera lens will slide into a 2" diagonal, can I use the camera without an eyepiece in the diagonal instead of the afocal shoot thru an eyepiece routine? or is it a distance to sensor issue? Thanks, Bill
    Burris

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    Default Re: Sony Cyber Shot DSC-85S Digital camera

    Quote Originally Posted by burris View Post
    Thank you for the explanation. One more quick question. Since the camera lens will slide into a 2" diagonal, can I use the camera without an eyepiece in the diagonal instead of the afocal shoot thru an eyepiece routine? or is it a distance to sensor issue? Thanks, Bill
    No, you will not be able to do that. You would need to be able to remove the lens of your camera for that.
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    Default Re: Sony Cyber Shot DSC-85S Digital camera

    Thanks Ozman. The lens (according to Sony) has a VAD-S70 52mm thread. Its probably not designed to come off in normal use but have seen some adapters for this camera. I guess I need a lot more data. Lol! Bill
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    Default Re: Sony Cyber Shot DSC-85S Digital camera

    I agree with the comments so far except Paul's about the programming interface - that's a matter of taste, personally I could care less. A DSLR is a self contained unit that needs no external control. Make sure it has an LCD screen on a swivel or hinge, that's what really matters.

    Then again, I just bought into a mount with no goto for AP, go figure - but it works fine!

    There are really good cheap options out there, all you need is a DSLR body and T ring and T adapter. My Fuji X-a1 has one of the best low light behaviors of all, see dpreview/new studio comparison tool/low light, and it is available for $145 typically, here's an example: https://www.ebay.com/itm/Fujifilm-X-...frcectupt=true .

    If you care about the programming interface, a Canon is your best bet, anything after the Rebel XT/D350 will be fine (that one has too much dark noise).
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    Default Re: Sony Cyber Shot DSC-85S Digital camera

    Thanks Camel hat! I think you just saved me a lot of future frustration! Lol! Bill
    Burris

 

 

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