[hotspur (Chris)]

Hello.

I am going to be using my Canon 450D for astrophotography.I have a external power supply that is custom made for it,currently under construction.

I have some strange artifacts of light along top of images,we figured the red/pink splodge is amp glow,is this correct??,and a strange 'greenish' light
along top to left of pink-this I am told is caused by light coming through view finder,and can be stopped by covering it.Might be a bit hard to see here,but its a strip of light along top when dark frame subtract done,it comes up as jet black.

With the new external power supply,this would eliminate amp glow??attached is a four minute sub for examination.

Thanks Chris