View Full Version here: : Dodging clouds
beren
07-08-2005, 07:11 AM
It was a case of wait and snap last night with a lot of cloud cover moving through and didnt really get a chance until after midnight to get anything .....M27, NGC253,Grus triplet and M31 {weather got me on that one ahhhh}. Good to see the summer stars too :D
Striker
07-08-2005, 07:45 AM
Nice pics Stuart.....how long were your exposures and what ISO.
I dont know what these setting mean but atleast I sound like I do...lol.
davidpretorius
07-08-2005, 07:59 AM
nice, actually, what does ISO stand for? and also what aprox magnification?
asimov
07-08-2005, 08:02 AM
Do you use filters Beren?
Robby
08-08-2005, 09:24 AM
Nice work Beren!! 4 images in one night! That's pretty good going
nice work there!
look like you have the grus quadruplet.... :D
astro_south
08-08-2005, 11:45 AM
Nice work Beren
As Ving says - you have managed to get the Grus Quartet (as they are more commonly known) :thumbsup:
atalas
08-08-2005, 05:30 PM
You've been a busy boy Beren good work :thumbsup:
Louie :innocent:
beren
13-08-2005, 10:47 AM
Cheers thanks very much ......Davo the term ISO is " the abbreviation for International Standards Organization = unit of measurement of a films/digital sensitivity to light ".Higher the sensitivity the less light required to make a exposure, allowing higher shutter speeds or smaller apertures ....theres a trade off though the higher the sensitivity the likely hood of pictures being subject to noise, softer contrast/colour and sharpness when compared to pics set at lower ISO settings . I find anything higher then 800iso with my D70 results in poorer pics { :poke: :ashamed: } , maybe this might improve if i stacked more images though. Used a IDAS filter with i think 5-10 min , should try and concentrate on one subject to get some stacking done but i get trigger happy with all the targets :D dissapointed the M31 shot didnt reveal more detail , unfortunately a failing camera battery halted the D70 noise reduction midway .....M31 is my number one object to image :thumbsup:
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