July 24 2005 - M13, M27, M57

These are my first serius attemps at deepsky shots with my 80mm f10 telescope. I expected my 80 mm telescope to do better on nebula then my 5" becuase of the faster fratio and so i found that m27 shouwed up better. As for M13 I still find my 5" to be slightly better and M57 well I don't know, it apears smaller in my 80mm but i can see the central star (ifyou look closely) while on my 5" i couldn't see the central star. Its hard to tell. Only more testing will give me a better idea which telescope performs better for deepsky shot. the stats are as follow:

M13: 80mm f10 celestron refractor, 240 sec exposure @ ISO 400 (16x15secs)
M13: 80mm f10 celestron refractor, 160 sec exposure @ ISO 400 (16x10secs)
M27: 80mm f10 celestron refractor, 285 sec exposure @ ISO 400 (19x15secs)
M57: 80mm f10 celestron refractor, 285 sec exposure @ ISO 400 (19X15secs)