Update
The core text and reference exposure tables are completed, however I'm still working on the digital camera side and due to bad weather (it's the wet season here, cloudy every night) have been unable as yet to run the scopes with a digital P&S to confirm the method of operation works reliably and to provide illustrative images of what is possible.
If you guys want I'll post a basic exposure chart for the moon to give you something to play with.
Kamwai
The Portaball telescopes are essentially an Alt-Az mounting and as such won't be suitable for much else apart from lunar, solar and some planetary photography.
If memory serves me right from the discussion I had with the guy who makes them some 4 or 5 years back they are pre-balanced for non camera use.
Your friend will need to increase the counterweight considerably to take the weight of a D-30. Attachment should be via a standard M42 T-ring to focusing tube attachment in either 1.25" or 2" depending on the focuser on the Portaball.
The core text and reference exposure tables are completed, however I'm still working on the digital camera side and due to bad weather (it's the wet season here, cloudy every night) have been unable as yet to run the scopes with a digital P&S to confirm the method of operation works reliably and to provide illustrative images of what is possible.
If you guys want I'll post a basic exposure chart for the moon to give you something to play with.
Kamwai
The Portaball telescopes are essentially an Alt-Az mounting and as such won't be suitable for much else apart from lunar, solar and some planetary photography.
If memory serves me right from the discussion I had with the guy who makes them some 4 or 5 years back they are pre-balanced for non camera use.
Your friend will need to increase the counterweight considerably to take the weight of a D-30. Attachment should be via a standard M42 T-ring to focusing tube attachment in either 1.25" or 2" depending on the focuser on the Portaball.
