Quote:
Originally Posted by Omaroo
Al, if I may, could I suggest that it may be useful if you put another set of static crosshairs inside a scalable box like the circles (optional, and maybe selectable via an on/off button) right in the middle of the screen. This could indicate that that we're looking at the airy disc on-axis? This would help with Dall Kirkhams such as the Mewlon as even slightly off axis the collimation is pointless. We could position the entire window centrally and resize the box to gauge whether we were sitting on centre within the sensor display area. Idea?
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I'm not entirely sure I follow the need for another set of cross hairs Chris.
You want the Airy disc on axis, so presumably the centre of the CCD is on the axis. The existing cross hairs are positioned on the centre of the window (same point the circles are concentric with), so wouldn't you just need to size the window so it fits and lines up with the capture image? Then move the Airy disc to the cross hairs???
Am I missing something???
Al.