Looooong Exposures (> 10 min)

Hello,

I know most digital cameras produce excessive noise over longer periods of time (e.g.- above 10 minutes), unlike manual film bodies. So I was wondering how long you have been able to go without excessive noise degrading IQ.

I would like to see your longer exposures if you have tried this.

I am planning to upgrade my old 10D to a 5D soon. With my old 10D I used stacking techniques to get 1 hour+ exposures. This consisted of combining shorter exposures of 10 minutes or less. It would be nice to go over 10 minutes per frame. The one issue I ran into with stacking was the appearance of small gaps between star trails. I then had to try and repair these in PS. Here is one stacked version of ~ 1 hour.

http://derek.zenfolio.com/img/v2/p232000590-5.jpg

Maybe I should also try an older manual film camera for this. I haven't shot film in years.

- Derek

if you hit the shutter without delay in between frames the gaps wont be there....

Film is the ultimate way to go for star trails....sensors will heat up over time and cause noise...its just how it is.....

but 8 hour star trails on film is incredible....