Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the narrowbandimaging group. File : /ngc...
narrowbandimaging@yah...
Jan 3, 2009 2:13 am
6581
Hi all, Images are here: http://astroanarchy.blogspot.com/2009/01/firs-light-for-qhy9.html The QHY9: ...
and a *very* successful first light indeed! Nice images ... From: hercule1939 To: narrowbandimaging@yahoogroups.com Sent: Thursday, January 08, 2009 3:27 AM ...
Hi, I haven't seen this difficult target as a three colour NB image before. S-II was strong but O-III was extremely weak, but it was there after all. Direct...
Hi all I have been dying to get out and try my new scope and finally lastnight there was some clear sky to give it a try. Focusing was very difficult as the...
... lastnight ... difficult ... camera ... focus ... rotator in ... smooth ... rotating I ... DL and ... difraction ... slightly out ... the ... close ... ...
Last week I presented a peer-reviewed paper at the Imaging Science & Technology / SPIE's "Electronic Imaging" symposium that preceeds Photonics West each...
Wolfgang Renz found a careless error I made on slide 24 that I have since corrected. Please download the most recent version of the paper here to get the...
Hi, Is this spesific just this sensor model or does it match to all KAF sensors like KAF8300 ? J-P ... since corrected. Please download the most recent version...
Hi, Weather up here is really cloudy all the time... I made a litle stereo pair from Sh2-240 just for fun: http://www.astroanarchy.blogspot.com/ J-P...
the methodology used to characterize the sensor is valid for any sensor  the results reported were for the characterized sensor  It is important to realize...
Thanks, I,ll do some testing later with my QHY9 and KAF8300 sensor. J-P ... sensor ... will vary from wafer to wafer and design to design. ... fab if they buy...
to do an accurate job of characterizing it you really need to accurately measure the offset. That is done simplest by measuring the offset in the overscan...
Hi Folks-- Here is my attempt with IC410. I found this one really hard to process- -I still have so much to learn (so what's new?) IC 410 (The Tadpoles) from...
Hello! Here is an attempt at the Rosette Nebula in Narrowband color with my new ST10xme. Imaged with my TOA130 and ST-10 XME and NJP Temma mount. Imaged on...
Hello! Here is an attempt at the Rosette Nebula in Narrowband color with my new ST10xme. Imaged with my TOA130 and ST-10 XME and NJP Temma mount. Imaged on...
Hi Richard-- Its convoluted but here is my "usual" NB workflow: 1. dark subtract and align in Maxim 2. normalize, data reject and mean combine the masters in...
... smooth, ... what happens if you skip the smoothing and noise reduction? ... why use luminance? what is your goal in doing so? ... it ... I ... Again, what...
Hi Richard--- Normally I wouldn't do much with the SHO master efore adding the ha for Lum other than some levels and curves but if the exposure time was...
you lose the detail when you smooth and do the noise reduction  you then attempt to retrieve the detail by using Halpha for luminance.  unfortunately the...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the narrowbandimaging group. File :...
narrowbandimaging@yah...
Feb 5, 2009 12:46 am
6610
as I mentioned earlier today, using Halpha for a luminance layer is not very sensible for a tricolor emission line image using [SII]/Ha/ [OIII] for the R,G,B...
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