What I shot today

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189 posts

Master Geek

#402253 9-Nov-2010 17:31

I purchased a new filter, so tried out some daytime long exposures

Raikyn

189 posts

Master Geek

#404043 12-Nov-2010 20:48

Another Gannet

dontpanic42

1574 posts

Uber Geek

#404456 14-Nov-2010 12:37

15 seconds exposure on a 550D

xpd

Geek @ Coastguard NZ
13769 posts

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#404469 14-Nov-2010 13:45

Some pics from a trip to the Zoo on Friday.....

http://www.facebook.com/album.php?aid=305911&id=737740574&l=d9934668db

I need a DSLR :(

Gavin / xpd / FastRaccoon / Geek of Coastguard New Zealand

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Acrux

56 posts

Master Geek

#409937 26-Nov-2010 15:51

This Helix Nebula image was not actually taken over one day so strictly it's not shot today but it was over the last few weeks. It was taken at 1600mm focal length on a Meade 10" telescope with a Losmandy G11 mount to track the object. The exposures were taken over several nights on a SBIG ST2000 mono camera with colour filter wheels. The individual exposures were a large number of images. Approx x20 red, x20 green, x10 blue, x10 clear and x8 Hydrogen Alpha. They were combined in MaximDL and then stretched and enhanced in Photoshop CS3

Raikyn

189 posts

Master Geek

#409940 26-Nov-2010 16:00

Awesome shot :)

Did you have to use a guiding scope as well? or is your mount accurate enough?

Acrux

56 posts

Master Geek

#409958 26-Nov-2010 16:19

At 1600mm almost no mount is good enough to take unguided images. The SBIG ST2000 camera I use actually has two CCD sensors, one to take the long exposer image and one to look at a guide star every two seconds and send corrections to the tracking mount to keep it on target. BTW I didn't say before those RGB L Ha images apart from being a lot of them here are the exposure times for each individual image in minutes!

for example
x20 red @ 4 min

20x R 4 min
20x G 2 min
10x B 2 min
10x Clear 8 min
8x Ha 8 min

284 minutes

So this is actually a total of four hours 44 minutes hours of exposure time!

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Trade NZ and US shares and funds with Sharesies (affiliate link).

Raikyn

189 posts

Master Geek

#413192 5-Dec-2010 22:27

BartManGeek

187 posts

Master Geek

#413336 6-Dec-2010 10:30

Some roses from the garden:

wazza15

39 posts

Geek

#419356 20-Dec-2010 11:29

Photo shot at home yesterday using Canon EOS 60D & EF 70-200mm f/4L USM Telephoto Zoom Lens - ISO 125 - F/4 in TV Mode at 1/250 sec to freeze the motion of the rain drops and the flight of the bird.