The Eagle Eye of God

[MGTechDVP (Mariusz)]

Hi Everyone,

Just sharing a few images I imaged on 27/28th July.

The Eagle Nebula was 30 minutes of 2 minute subs and 30 minutes of 3 minutes subs.
The Helix Nebula was 90 minutes of 5 minute subs. I tried to get two hours worth of subs but 30 minutes were unusable, that said, I did use 2 5 min subs that showed a bit of a drift. All images were exposed at ISO1600 using a unmodded Canon 7D.

I assume that the polar alignment mustn't have been spot on the SCP or there was a bit of flexture of the guidescope since when guiding I had a marker on the laptop screen showing where the guide star was and in the whole 2 hours it didn't move. If anyone can think of another reason, please share your wisdom. I don't think it was flexture since the guidescope is on the main SCT very securely using 2 rings on a second added dovetail.

Finally, last two images are of Jupiter and Venus, although I was shooting through heaps of turbulence, it was like focusing through running water, so the end result is nothing spectacular.

[leon]

Mariusz, a fine effort, however i reckon the heavy crop on these images has lost some of there appeal, a wide field would probably have been the way to go.

That is OMH0, however a great result indeed.

Leon

[allan gould]

A nice collection of images and with a little more experience you will get there.

[Garbz (Chris)]

Nice restuls there Mariusz. As a matter of interest were the eagle shots also ISO1600? I ask because I attempted them last night on an Olympus E5, 2h30min at ISO400 with 1min subs and got severe banding. The image was a write-off.

If you were also going ISO1600 then I'm going to put it down to the eagle being too dim to comfortably get on an Olympus E5 and I'll try again on a different camera.

[leon]

Guys, I think 1600 ISO is just to high, probably 400 ISO with a longer exposure would get some really decent Data.

When I imaged, I never went higher than 400 and maybe 500, with some great results.

Leon

[multiweb (Marc)]

Jack of all trades hey? Looking forward to your progress.

[MGTechDVP (Mariusz)]

Thank for the feedback gents,

Chris, all images were taken at ISO1600.

Leon, when I get my tracking to be more accurate then I'll extend the exposure time at a lower ISO. right now anything more then 4/5 minutes starts to show drift too much.
As for the crop, I agree, although I'm going to give imaging a close up of the "pillars of creation" through narrow band filters the moment my DSLR is modded.... Hubble palette style.