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Old 14-09-2012, 08:28 AM
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gregbradley
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Join Date: Feb 2006
Location: Sydney
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Quote:
Originally Posted by bojan View Post
LXD75 (2 axis motor drive), loaded with 1000mm+400D for chromosphere & prominences, 300mm+60D for outer corona and chromosphere spectrum (if I have enough time...).
Control of 2 cameras from single lap is a problem I haven't solved yet...

The setup on attached picture is put together just as feasibility study.. it will be much more stable and rigid at the end (I hope..)

Impressive setup. Is that transportable though?

Is 1000mm too long or just right? With APS C that is more like 1600mm and that would be quite a magnified view. Perhaps its just right - I am not sure. I used 600mm with the Venus transit and full frame camera and the sun could have been a bit larger. So perhaps an APS sized camera and 600mm would be a nice size. I'll have to test that.


Quote:
Originally Posted by dannat View Post
Greg I was going to use a polarie for 1 camera, just tripod fr other;
1. Trying o mod my PST, have. Borg helical focuser, repve the guts of the PST & insert helical, then ep holder to 1.25" t adapter -this setup for before during & after
2. Have a Borg 45ed, f/l about 320mm, just to fire shots of totality (pro without solar filter
3. Not sure yet whether bother to do any w/f
I suppose the key thing here is to practice with it well in advance and iron out any bugs.

Is 320mm a bit short? It might be fine with an APS sized sensor.

A PST gives good Ha images?

Greg.
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