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Messages - Sedat

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31

In case you had difficulties with Rapidshare services, I have uploaded the files to Pixinsight file server as well;

Fits file --> http://endor.uv.es//data/public/7b488b41ae5dfe28fe5bfc0c69561efc.php?lang=en
Tiff file --> http://endor.uv.es//data/public/c9d49969a32ff239655770cd07687d72.php?lang=en

Hope some of you can find the time to fiddle with this data.

Best wishes

Sedat

32
Hi folks,

Could you please give me a hand and process my data to show what can possibly be done with it ? I will really appreciate this.

https://rapidshare.com/files/1051544027 ... LA_HDR.rar (64 bit fits)
https://rapidshare.com/files/3163770842 ... LA_HDR.zip[/url] (16 bit tiff)[url]

I am a relatively new PI user and still have a long way to go to be able to use it properly. I must confess however, contrary to everyone's belief in the PS camp, my progress is much speedier and more fruitful compared to my PS efforts. Kudos to the developers and supporters once again.

I still have some problems with DBE, color calibration and noise reduction. For some reason MMT is not very effective on my pictures. I am suspecting the culprit to be my shooting with a DSLR. There must be an inherent noise due to the missing pixels, blocked by CFA. Whenever I apply MMT ot ATWT the background doesn't look silky smooth at all. I am sure I must be pushing some wrong buttons at some stages as well.

I have been playing with this Bode's Nebula data for the last couple of weeks. The stack I  share with you is an HDR composite of the following:

Scope: FSQ106ED @f/5
Mount: Vixen New Atlux with Starbook
Focuser:
Camera: Canon 550D - Hutech modified
Filters: None
Guide: Vixen A80SS, Orion SSAG

Exposures:
First set: 24x360 second Light @ISO1600, Master Darks, Bias, 24x Flats, 24x Flat Darks
Second set: 11x360 second Light @ISO800, Master Darks, Bias, 24x Flats, 24x Flat Darks
Shooting Date: 26.02.2012
Orientation:
Acquisition: BackyardEOS
Guiding: PHD
Stacking: Images Plus
Processing: Pixinsight
Location: Marmaris - Turkey
SQM: 21
Temperature: 9 C

This one is a quick process of the ISO1600 stack



and this is the result of the HDR composite...There are many errors I know but I guess I need a break and go back to basics before further attempts.


Can you see my White Flag waving ? :)

Thanks for reading and your help.

Cheers

Sedat

33
Tips & Tricks / Re: Image Calibration Workflow
« on: 2012 February 08 08:00:46 »
Thank you for confirming this Vicent. Hope to produce some nice photos with the help of PI soon.

Best wishes

Sedat

34
Gallery / Re: M51 and companions - C11 Edge + Hyperstar
« on: 2012 February 06 00:19:25 »
You are absolutely right. I didn't like it either.

Here is another try:



For color calibration I am selecting the whole of the galaxy, including the tidal tails etc. But then I am playing with the lower limit until only the galaxy is white and the rest is black.

I remembered seeing in Vicent's NGC1808 video that he doesn't touch these settings, neither for the white reference nor for the background reference image. So this time I did the same and I got better colors. Harry, on the other hand, is suggesting to play with these settings until we get a satisfactory mask for the calibration. Maybe version 1.7 is taking care of this and I don't need to touch anything.

What is he correct method ?

Thank you for your kind assistance.

Sedat


35
Gallery / Re: M101 and companions - C11 Edge + Hyperstar
« on: 2012 February 05 14:00:44 »
Here is rework



Your c/c is welcome

Clear skies

Sedat

36
Gallery / M51 and companions - C11 Edge + Hyperstar
« on: 2012 February 05 11:32:55 »
Hi again,

This Pixinsight is incredible indeed. This time the calibration and stacking is done with Images Plus.




Scope: C11 Edge HD f/10 @ f/2 with Hyperstar 3
Mount: Vixen New Atlux with Starbook
Focuser: Feathertouch Microfocuser
Camera: Canon 550D - Hutech modified
Filters: CLS
Guide: Celestron 9x50 Finder/Guider, Orion SSAG

Exposures: 24x150 second Light @ISO800, 50x Darks, 50 Bias, 50 Flats
Shooting Date/Time 03.07.2011 00:17:20
Orientation:
Acquisition: BackyardEOS
Guiding: PHD
Stacking: Pixinsight
Processing: Images Plus, Pixinsight, CS5
Location: Marmaris - Turkey

File Name   M51_LIGHT_150s_ISO800_+35cC_IDAS_1143stdev_000106.CR2
Camera Model   Canon EOS REBEL T2i
Firmware   Firmware Version 1.0.8
Shooting Date/Time   03.07.2011 00:17:20
Author   BILGEBAY
Owner's Name   
Shooting Mode   Manual Exposure
Tv( Shutter Speed )   150
Av( Aperture Value )   0.0
Metering Mode   Evaluative Metering
ISO Speed   800
Auto ISO Speed   OFF
Image Size   5184x3456

37
Gallery / M101 and companions - C11 Edge + Hyperstar
« on: 2012 February 05 05:53:57 »
Hello everyone,

This is the first photo I processed completely in Pixinsight from data reduction to post processing. Only the finishing touches are made with CS5. This is also the first photo I am posting here.

I am working on this since the other day and I am not able to judge it anymore. I am not completely happy with it but I need a break now :) I need to work on noise reduction and maybe I will re-process it from stacking onwards.

I guess my focus was not dead on during the exposures. I also see  elongated stars in the corners. Anyways, here it is:






Scope: C11 Edge HD f/10 @ f/2 with Hyperstar 3
Mount: Vixen New Atlux with Starbook
Focuser: Feathertouch Microfocuser
Camera: Canon 550D - Hutech modified
Filters: CLS
Guide: Celestron 9x50 Finder/Guider, Orion SSAG

Exposures: 49x90 second Light @ISO800, 50x Darks, 50 Bias, 50 Flats
Shooting Date/Time 04.07.2011 00:03:00
Orientation:
Acquisition: BackyardEOS
Guiding: PHD
Stacking: Pixinsight
Processing: Pixinsight, CS5
Location: Marmaris - Turkey
Limiting Magnitude:
Temperature: 21.5 C

File Name   M101_LIGHT_90s_ISO800_+32cC_IDAS_876stdev_000350.CR2
Camera Model   Canon EOS REBEL T2i
Firmware   Firmware Version 1.0.8
Shooting Date/Time   04.07.2011 00:03:00
Author   BILGEBAY
Owner's Name   
Shooting Mode   Manual Exposure
Tv( Shutter Speed )   90
Av( Aperture Value )   0.0
Metering Mode   Evaluative Metering
ISO Speed   800
Auto ISO Speed   OFF
Image Size   5184x3456
Image Quality   RAW
Flash   Off
FE lock   OFF
White Balance Mode   Custom
AF Mode   Manual focusing
Picture Style   Faithful
Sharpness   0
Contrast   0
Saturation   0
Color tone   0
Color Space   Adobe RGB
Long exposure noise reduction   0:Off
High ISO speed noise reduction   3:Disable
Highlight tone priority   0:Disable
Auto Lighting Optimizer   3:Disable
Peripheral illumination correction   Disable
File Size   22506 KB[/quote]

38
Tips & Tricks / Re: Image Calibration Workflow
« on: 2012 February 02 08:31:51 »
Perfect! thank you so much.

39
Tips & Tricks / Re: Image Calibration Workflow
« on: 2012 February 02 03:46:12 »
Vicent et al,

I am a new convert to Pixinsight :) and I am very glad that I did the move.

I believe the stacking in PI is also superior to other software I have been using.

Now I want to do all the calibration in PI too. I have one challenge though.... most of my flat frames are shot at ISO100 whereas my light frames are shot at ISO800 or 1600. I am using two DSLR cameras for shooting, a Canon 450D and a 550D, both astro modified.

Calibrating the ISO100 flats with ISO1600 bias or dark frames is likely to cause problems. Can you please tell me how to proceed ?

Many thanks in advance.

Sedat

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