Quote:
Originally Posted by skwinty
Hi Eric
From what I understand , any sensor which uses anti blooming is not "good" enough for "scientific" work. So i would say that rules out any OSC sensor.
I think the implications are that you would not get an accurate brightness measurement over the region of interest due to the the photosites on the sensor reaching full well capacity on the brighter stars while the dimmer stars are only say at half well capacity.
Regards
Steve  |
This is not quite correct but it certainly makes it much more difficult. ABG chips become less linear as they reach over 1/2 full well. This complicates differential photometry but doesn't preclude it. There is a very good article at
http://www.aavso.org/publications/ejaavso/v33n1/1.shtml
that discusses using a consumer grade ST7 for detection of planetary transits. They discuss the difficulty with the ABG type of chips.