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+  The Canon EOS and Photography Forums
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| |-+  Technical Questions on Photography and Optics
| | |-+  Exposure Time Limitations on a Canon 40D
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Author Topic: Exposure Time Limitations on a Canon 40D  (Read 4715 times)  bookmark this topic!
Junior Member
Posts: 27

Exposure Time Limitations on a Canon 40D
« on: March 26, 2012, 09:35:07 PM »

I have been unsuccessful in capturing iridium flares at night because the timing requires longer exposures to successfully bracket the passing of the satelite.  It seems 30 seconds is all that's provided by my Canon 40D.  Is there any way around this?  Persons I know that have been successful use 2 minute exposures.

Bob Atkins
Hero Member
Posts: 1253

Re: Exposure Time Limitations on a Canon 40D
« Reply #1 on: March 26, 2012, 09:59:31 PM »

The solution is to use a locking remote release and bulb mode.

Something like this - SMDV Remote Shutter Release Cable for Canon EOS 40D

Or if you like Genuine Canon stuff, the Canon RS-80N3

If you want to set a given long exposure time, you can use something like the Satechi TR-A Timer Remote
« Last Edit: March 26, 2012, 10:03:38 PM by Bob Atkins » Logged
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