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More Saturn Pics


lunator
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These are the rest of the Saturn Pics I took on 230306.

I have added them as I hope it will show how image scale is important.

3 of the images are at x266 mag, but the 2nd one is at x133.

Visually the x133 image was better due to the seeing conditions but for the camera x266 give a mch better image due to the scale.

The important point is that what is best for the eye is not necessarily best for the camera.

Cheers

Ian

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Like the top one best Ian. There seems to be a sweet spot for magnification and there's a formula - F= 3.5 x P x A where F = desired focal length, P = pixel size in microns and A = aperture in mm. Don't know how that was arrived at but seems to work

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Like the top one best Ian. There seems to be a sweet spot for magnification and there's a formula - F= 3.5 x P x A where F = desired focal length, P = pixel size in microns and A = aperture in mm. Don't know how that was arrived at but seems to work

Thanks Martin

My set up would be 1200 = 3.5 x P X 203

Solving for P gives 1.69 micons per pixel

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