First Messier Object M13

[Rocket Pooch]

Well, I got the SAC8 out tonight.



Must try harder, this was taken with the LX90 and a SAC8 20 exposures at 5 seconds.

My feet are cold.....

[Rick]

Any ideas where the horizontal lines are coming from?

[Rocket Pooch]

Yes its the camera, in the manual they tell you how to get rid of it when your processing, but I need to RTFM a bit more.  

I'll look at it later in the week.

[Rick]

Ah. Right. I'd guess it's using every other line in the CCD for some reason or other; either to get a non-interlaced frame, or to try to avoid cross-line bleed. Been having fun with interlace in a slightly different context over on the ZoneMinder forum, myself.

[Ian]

I think the tool you need is imerge, on jon groves web site. The black lines come from only using one of the 2 frames that make up a (interlaced) PAL frame.

There are methods using Photoshop too I believe.

Good effort by the way, five seconds shows how sensitive those cameras are. Got to crack your focussing though. Try using a Hartmann mask.

[Rocket Pooch]

No I think the focus was ok, but the processing stinks and some of the frames are saturated.

The camera seemed to be a bit hyper and maybe I should have taken more shorter images?  

Anyway I'll play with these frames over the weekend and see what happens.  

I also took a series of other images, but I haven't even looked at them yet.

There is one funny picture I have of Regulas through my clothes line, give an interesting shape to the image somewhat post modern feel about it.