cpl42 ow I was going to handle 3x brightish targets with 50x10-30sec lights at 15-20 MB each in an automated night's astrophotog. session.
Hi Paul,
At 30 seconds per frame, an hour would yield 120 frames max, even if you don't add any dead intervals between frames (dithering, focusing, meridian flips, etc). At 20 MB per frame, that comes up to 2.4 GB per hour.
At that rate, a terra byte would give you 400 hours worth of storage. About 50 nights worth (perhaps fewer in winter, since darkness hours outside astronomical twilight are longer -- I get only about 4 hours of darkness outside the astronomical twilight in Oregon in the middle of Summer).
A 2 TB drive should be enough to cover 100 night's worth, assuming you never uploaded the data to a laptop in the meantime.
With 10 second exposures, a 2 TB drive will still cover 30 nights worth.
Chen
