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DPChallenge Forums >> Tips, Tricks, and Q&A >> 20D shutter speed...
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 06/10/2005 03:41:51 PM · #1
I just bought a 20D. I'm relatively new to photography. I wanted to get a good camera I could grow into. Any ways, I know that the camera allows you to set the shutter speed anywhere from 1/8000 sec - 30 sec. However, isn't there a way to keep the shutter open indefinitely? How do you do that? I'm assuming that capability is used for taking pictures of stars (I can't think of any other uses). Any help would be appreciated. Thanks in advance.
 06/10/2005 03:43:27 PM · #2
Bulb mode.
 06/10/2005 03:46:24 PM · #3
Originally posted by faidoi:
Bulb mode.


Plus the Custom Function to do Mirror Lock up needs to be enabled, if you wish to press the shutter then press it again to stop the shutter. Other wise you will be holding the button for 20 minutes ;-)
 06/10/2005 03:48:07 PM · #4
oh there are plenty of uses for "B" or bulb mode. Light painting for example. You can have a lot of fun with it, be aware though, that with digital cameras very long exposures can result in very noisy looking photographs.
 06/10/2005 03:48:37 PM · #5
Or you get a cable release to do the button holding for you.
I bought one on the internet somewhere, way cheaper than the genuine canon one and it works just fine.
 06/10/2005 03:48:56 PM · #6
Thanks faidoi and dpakoh. So you're saying I can't just switch it to bulb mode, hold down the shutter, and that's it? I'll have to look into mirror lock up. I'm not sure what that is or how that works.
 06/10/2005 03:49:02 PM · #7
Originally posted by dpakoh:
Originally posted by faidoi:
Bulb mode.


Plus the Custom Function to do Mirror Lock up needs to be enabled, if you wish to press the shutter then press it again to stop the shutter. Other wise you will be holding the button for 20 minutes ;-)


Remote shutter release too.
 06/10/2005 03:50:01 PM · #8
beetle, where did you get the cable release and how much was it?
 06/10/2005 03:50:22 PM · #9
Originally posted by chafer:
Thanks faidoi and dpakoh. So you're saying I can't just switch it to bulb mode, hold down the shutter, and that's it? I'll have to look into mirror lock up. I'm not sure what that is or how that works.

You'd never manage to hold down the button without moving the camera, not even if it is on a tripod. You'll have nothing but blurry pics if you try.
 06/10/2005 03:51:57 PM · #10
Originally posted by chafer:
beetle, where did you get the cable release and how much was it?

I can't remember where..... I just googled it and picked the cheapest one, some unmarked, unknown brand. Figured losing $15 wasn't the end of the world.
Just check pricegrabber and places like that.
Edited to add: just be careful you don't get one meant for the Rebel...... much cheaper, but not compatible.

Message edited by author 2005-06-10 15:53:22.
 06/10/2005 03:53:18 PM · #11
When doing long esposures, a cable release is a great thing to have. You can go the inexpensive route, either the 3rd party ones or the Canon RS-80N3, or if you want some really cool additional functionality, look at the TC-80N3.
 06/10/2005 03:55:03 PM · #12
You may also want to check out the Canon 20Da optimized for astrophotography.

"Display a magnified live view of the subject on the 1.8â LCD monitor." just like everybody's non-dSLR. Of course you can add the new Zigview to your current camera.

Message edited by author 2005-06-10 15:58:00.
 06/10/2005 04:10:05 PM · #13
Anyone know a way of doing a remote without cable?
 06/10/2005 04:14:28 PM · #14
Originally posted by C-Fox:
Anyone know a way of doing a remote without cable?


Canon Wireless Controller LC-4
 06/10/2005 04:22:13 PM · #15
Originally posted by chafer:
where did you get the cable release and how much was it?


doing a search on ebay found lots of results: ebay search
 06/10/2005 04:37:06 PM · #16
uhhhh now i want a new toy
 06/10/2005 04:55:51 PM · #17
goldberry, go get yourself a new toy :-)
 06/10/2005 05:55:31 PM · #18
Why didn't you just read the manual that came with the camera? The answer to your question and the mirror question are on pages 87/88 in my version which on the back cover says it is current as of 8/04
 06/10/2005 08:17:07 PM · #19
Alienyst, you bring up a good point. Keep in mind, I had no idea I should be searching for the term "bulb mode." Secondly, I got a response within about 30 seconds of posting my comment...and third, a lot of other people gave me some good feedback regarding cable releases, something I really didn't know much about. Sometimes it pays to openly ask questions :-)
 06/10/2005 10:41:33 PM · #20
Certainly it does pay to ask questions, but if you pay the money I know you paid for that camera, it would certainly PAY to read the manual while the batteries are charging and then you can ask more focused questions to get the answers you want instead of need because you do not know about your equipment.

(and it was more like a minute thirty seconds)

Message edited by author 2005-06-10 22:44:38.
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