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Cheap DSLR? C615 Upgrade?

Which camera works? Where can you buy an adequate laser? And more...

Cheap DSLR? C615 Upgrade?

Postby fritts » Sat Aug 13, 2016 1:37 pm

Any cheap DSLR's or other cameras that can accept lens' that would be a good upgrade to a modified C615? Trying not to spend 300 on a camera if not necessary.
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Re: Cheap DSLR? C615 Upgrade?

Postby fritts » Wed Aug 24, 2016 6:17 pm

Bump, anything in the up to $200 range that would be a worthwhile upgrade?
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Re: Cheap DSLR? C615 Upgrade?

Postby micr0 » Wed Aug 24, 2016 6:52 pm

fritts wrote:Bump, anything in the up to $200 range that would be a worthwhile upgrade?


Cheap DSLR's are not going to be good for Live View scanning as they do not output the frame rate or rez. The Cannon T3i is excellent if you are using image grabber. You can find them used for <$300
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Re: Cheap DSLR? C615 Upgrade?

Postby fritts » Thu Sep 08, 2016 5:54 pm

I ended up printing a new enclosure and getting a used Compustar 5-50 varifocal lens for the C615. Helped a lot in obtaining details. Still testing as I am getting some issues with scans not aligning.
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Re: Cheap DSLR? C615 Upgrade?

Postby micr0 » Thu Sep 08, 2016 8:44 pm

fritts wrote:I ended up printing a new enclosure and getting a used Compustar 5-50 varifocal lens for the C615. Helped a lot in obtaining details. Still testing as I am getting some issues with scans not aligning.


You should use a prime lens. Verifocal lenses have a lot of barrel distortion (this is directly related to the distortion causing alignment issues you are having).
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Re: Cheap DSLR? C615 Upgrade?

Postby fritts » Mon Sep 12, 2016 2:12 am

So what would the most appropriate focal length be for scanning 2-3ft away from object? I have no photography background so all of this is new to me.
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Re: Cheap DSLR? C615 Upgrade?

Postby micr0 » Mon Sep 12, 2016 1:01 pm

Generally speaking 12mm. But you have to match the lens to the sensor size. eg. for a 2/3" chip you need a 2/3' lens. This too will change when you get into the world of DSLR's. I've found that 20mm on the canonT3i to be about right.
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