Renderosity Forums / Photography
Welcome to the Photography Forum
Forum Moderators: wheatpenny Forum Coordinators: Anim8dtoon
Photography F.A.Q (Last Updated: 2025 Feb 03 6:38 am)
Subject: Dark Frame?
Fran, Don't have any personal experience in this area, but found some links that may be good for reference: Canon Astrophotography Guide Manually Guided DSLR Astrophotography L8r! Joe
That second link does talk about dark frame but doesn't say one darned thing about how to access that feature. Neither does my instruction manual. Hopefully someone will come along who can help me..... Please?
Measure
your mind's height
by the shade it casts.
Robert Browning (Paracelsus)
http://franontheedge.blogspot.com/
Attached Link: http://www.photosig.com/go/journals/read?id=283&forward=userjournalentries
This aroused my curiosity so I went searching the web for the answer. It is the method of taking 2 exposures one with the lens cap on and blending them together to identify the hot pixels from stars. There is an explanation on the link.And every one said, 'If we only live,
We too will go to sea in a Sieve,---
To the hills of the Chankly Bore!'
Far and few, far and few, Are the lands where the Jumblies
live;
Their heads are green, and their hands are blue, And they went to
sea in a Sieve.
Edward Lear
http://www.nonsenselit.org/Lear/ns/jumblies.html
Just found out you can set the 20D to do this for you by going to custom functions in the menu area and selecting C-FN-02. Page 141 of the manual in Custom Settings. Probably best to try this and the PS way see which gives the best results. Message edited on: 07/04/2005 06:43
And every one said, 'If we only live,
We too will go to sea in a Sieve,---
To the hills of the Chankly Bore!'
Far and few, far and few, Are the lands where the Jumblies
live;
Their heads are green, and their hands are blue, And they went to
sea in a Sieve.
Edward Lear
http://www.nonsenselit.org/Lear/ns/jumblies.html
Thanks Onslow, I've found it in the manual now, but no way would I have found it without your pointing the way.
Measure
your mind's height
by the shade it casts.
Robert Browning (Paracelsus)
http://franontheedge.blogspot.com/
Privacy Notice
This site uses cookies to deliver the best experience. Our own cookies make user accounts and other features possible. Third-party cookies are used to display relevant ads and to analyze how Renderosity is used. By using our site, you acknowledge that you have read and understood our Terms of Service, including our Cookie Policy and our Privacy Policy.
Hi all, This is my first time in this forum and I need some help. I have a Cannon EOS 20D and my brother had a telescope. He wants to borrow my camera to do some astronomy photos, he had the various linking rings necessary, and wants to know about something he calls "Dark Frame" - it seems it's a way of ensuring that the long exposures necessary for night time star images etc do not result in the night sky looking grey instead of black in the final image. I wanted to know if there's a setting I can find to use in my Cannon for this? I've searched in my dinky little instruction manual for the Cannon with no luck but maybe it's got another name? What should I be looking for? Would a combination of settings be what I'm looking for? Can anyone help? Fran
Measure your mind's height
by the shade it casts.
Robert Browning (Paracelsus)
Fran's Freestuff
http://franontheedge.blogspot.com/
http://www.FranOnTheEdge.com