Congratulations to all the BOSS team. Here is my tiny contribution with some images.
Spent last night taking data with NGC5643 at the centre of my field.
This is a stack of five luminance images of sixty seconds each 5MB
http://d1355990.i49.quadrahosting.co...643_L_60s_.jpg
With a field of 3.5x3.5 degrees and about five exposures to eliminate cosmic rays this system can cover a big area of sky in a short time. I do not know how sucessful blinking would be with such a large area full of stars.
RGB 17x4 minutes for each full field 9MB
http://d1355990.i49.quadrahosting.co...GC5643_RGB.jpg
A full resolution crop with the SN at centre. 16 bit tiff 10MB
http://d1355990.i49.quadrahosting.co...3_RGB_crop.tif
I dont know how useful my system is for SN searching. These images may give you a better idea Peter. I did take a range of luminance images from 30 seconds to 2 minutes. One minute looked to be optimum.
The last image below is a crop from the one minute luminance stack.
I forgot to say you are welcome to use any of these images.
Bert