vdB 152

[christophwoehrle]

Hi,
I am more a reading person than a posting guy, but now I would like to share a photo with You

My first photo completely developed with PI. Before I always did some fine tuning in PS.
But after having studied lots of tutorials I am quite satisfied with the result.

TLAPO Triplet 80/480 with TSFLat2 and Atik 383L+
Guiding with Lacerta Mgen and Mgen2Maxim for Dithering


Taken at the ITT in Carinthia 2011
L:R:G:B in min (200:100:100:100)
full resolution ( attention it is really the full resolution )
http://astro.christophwoehrle.com/vdb152/vdb152.html

I hope You like it to 

Chris
www.astro.christophwoehrle.com

[Lex]

Chris,

You are right, I absolutely like your awesome picture!
You have pratically the same setup as mine 

What mount do you use?

[christophwoehrle]

Hi Lex,

thanks for the compliment.

Yes, it is nearly the same equipment.
I am using a CGEM :-)

Chris

[Lex]

So,

this is really pratically the same setup as mine 
Have you done something with your mount, aka Hypertuning; PEMPRO or soemthing like that?
I am not really satisfied with its accuracy and look for something to do against this..

[christophwoehrle]

Hello Lex,

well I took the CGEM out of the box and all I did since then was a firmware update. Never changed anything.
But the main thing that helps me get exposure times if 60min singleshot and pinpoint is the auto guider Mgen.

Did You activate something like a PEC or Backlash compensation?

Chris

[Lex]

I just did PEC training with the PEM  Pro software..
I am able to do exposures of 1200 sec, sometimes it works well and other times not at all.
600 sec exposures are commonly okay with good shaped stars..

I did not touch backlash compensation because i often read that it very hard to configure these settings.

[christophwoehrle]

Hi Lex,

I recommend to keep all features like PEC or backlash switched off.
Most autoguiders will compensate much better without all that stuff.

Chris

[Lex]

Christoph,

In the beginning I though the smae, but after several months of using my setup i tried to do some PEC trg and my tracking graph was flatter than ever...
I know that most guiders should be used with no PEC activated, but not mine i guess