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Bulb exposure 10D


actionman 17 88
9 Mar 2004 5:20PM
hello plz can you help, im wondering what is the maximum exposure time when shooting in bulb at night, ive been informed 30 sec is maximum time? and that sensor gets 2 hot can any 1 help me plz.

thanks
Carabosse 18 41.5k 270 England
9 Mar 2004 5:44PM
The link from Photo.net HERE may help.
jambo 17 87
9 Mar 2004 7:01PM
30 secs is the maximum you can set with the timer on the camera, past that you would need the remote release RC80N3 which has a shutter lock or the TC80N3 which allows you to dial in any exposure time you like.
park my ferret 17 1.0k United Kingdom
9 Mar 2004 7:24PM
where did you hear about the chip getting too hot...has anyone else heard of this?
brian1208 17 11.8k 12 United Kingdom
9 Mar 2004 9:06PM
I think it may relate to the use of CCDs in Astro-photography. I have read that they need to be cooled to prevent noise occuring over very long exposures and have seen people extrapolating that fact to CCDs (CMOS) noise in digital cameras.

There's nothing in my books to suggest it is a problem with normal digital cameras and I have used exposures over 3 minutes without problem (but some noise)
jambo 17 87
9 Mar 2004 9:09PM
I think the 10D is very good at controlling noise at long exposures....certainly better than nikons offerings
actionman 17 88
10 Mar 2004 8:35AM
thanxs i have the RC80N3 read the link and apparatnly with the grip you get over 6 hours and with bty life still left.

i wanted to be careful about damaging the sensor thats all but then again why would u beable to shoot long exposures if it would damage the sensor canons R&D dept must have exhausted this feature otherwise camera wouldnt have this feature

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