[Alchemy (Clive)]

Like the thread name says will someone please explain what happened.

i have included previous images shot with the 300d cannon camera i used to use , note these have NOT been edited other than to convert to tif and then resized as jpegs so to fit here. they are as follows

NGC 2467 a 371 sec exposure at ISO 800

NGC 3324 a 386 sec exposure at ISO 800

RCW 57 a 370 sec exposure at ISO 800

Run/chook 361 sec exposure at ISO 800

all showing detail colour and promise thats what im used to , so i try out my new you beaut cooled CCD camera and expose for 600 sec, should be better yeah?

Well heres the results ,shot using supplied recomended program ignore poor tracking as thats not my concern, again these are all UNEDITED other than conversion to another format. This is the cats paw in Scorpius a VERY BRIGHT H alpha target.

An export out of WIN4AIP as a tif... note i couldnt find a debayer function so its in greyscale.

An export out of Images Plus note had to convert as hxsv9 to debayer or something like that as this was only one that looked half right for colour, the others were horrid.(the 25 version which is the same chip supposedly was awful)

Photoshop using NASA fits Liberator Plug in, again color doesnt work so its a greyscale.

All then converted to JPG in photoshop, all show the same "light"or strength of signal if you will so to speak, i have included the FITS header.... note the date is wrong maybee its my computer idont know but shot between 12.20am and 1.20 am Sunday 4th May 2008 the rest is right,

Headers for HDU 1
SIMPLE = T
BITPIX = 16
NAXIS = 2
NAXIS1 = 3040
NAXIS2 = 2016
BZERO = 32768
BSCALE = 1.0
CAMERA = 6.0 MPix Camera
EXPTIME = 600.0000
GAIN = 50%
OFFSET = 118
DATE = 11.01.2000
TIME = 01:32:02
PIXXSIZE= 7.80
PIXYSIZE= 7.80
TEMP = N/A

So if this is a better camera WHAT HAPPENNED WHY IS IT SO DARK FOR AN EXPOSURE NEARLY TWICE AS LONG
i just dont get it, what have i done wrong, this is not what i expected. Note the image looked on the supplied program just like the ones seen here..... heck i will supply the FITS files on a disk to someone really experienced if they can make sense of it. At this point i am assuming i have done something wrong.....what is it?

i will return sunday evening at 6 ish hopefully someone will know.



Tired and Gutted

Clive