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Old 18-08-2010, 08:41 PM
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midnight (Darrin)
Always on the road

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Join Date: Aug 2010
Location: Australind, WA
Posts: 891
Chris,

Fantastic tips there!

I am interested in your reply re aperture. This might sound a little silly as I don't know if depth of field applies effectively for say a F4 SN OTA but can this be done? Ie in prime focus where the camera is t coupled to the OTA, can you "stop down" the OTA to achieve this?? Eg I have a 8"SN F4 scope - would adding an aperture mask on the front achieve any real depth of field?? Very interesting as my moon photos are just like you describe - void of any real sensation of a 3D object and slightly out of focus in areas but in focus elsewhere .

I would love to hear your opinion on this as us beginners sometimes struggle even with the basics. I'll give it go anyway see what happens - that's part of the fun of this hobby.

Cheers,
Darrin...
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