[2stroke (Jay)]

As much as you can without clipping and getting blooming if your camera doesn't have anti bloom. Never really had any issues apart from blooming with a few extremely bright stars. You just don't want your brightest pixels exceeding the graphs range other wise you will your loosing data. Take a few images of the moon and see for your self, do 1 at .5 secs and another at 5mins and you will see. Maxim has an anti-blooming feature which helps for bright stars to btw. Thats a 4min sub as you can see i could go way more, it will clip with the brightest star first and bloom but who cares i could fix that. Just experiment for your self, lol trying to find the bloom i had with 1 star a while back now to show you the graph from that.