Canon 80D Interval timer in Bulb mode?

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245
Name
Ian
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#1
Astro-photography - deep sky objects- with 80D mounted on a scope:-

I want to take 30x 120second exposures to stack.
Bulb mode allows the 120 second exposure but in bulb mode it seems the interval timer doesn't work.
So do I have to manually trigger each new exposure?
Or is there a way to trigger a new exposure every 121 seconds so i can leave it tracking for an hour taking the pics>
 
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3,195
Name
Jan
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No
#2
Do you mean a built in interval timer? Sorry but although I do use Canon neither of my cameras have that feature. The usual way is to use an intervalometer - a bit like an old fashioned cable release except they can be set for exposure time, number of exposures and a gap between to allow downloading to the card.
 
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10,287
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#3
Why not take 120 x 30 sec exposures? In aperture mode you can go to 30 seconds. Set continuous shooting and use a remote locking switch.
Then use some programme like Star Stax to stitch them together.
 
OP
OP
Twigman
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245
Name
Ian
Edit My Images
No
#5
Why not take 120 x 30 sec exposures? In aperture mode you can go to 30 seconds. Set continuous shooting and use a remote locking switch.
Then use some programme like Star Stax to stitch them together.
I could do that with the interval timer - I was just trying to keep the number of files down and still have enough in the images to make them useful
 
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831
Name
Tony
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#7
The Canon Connect phone app synchs up nicely with my 80D and I suspect it may be able to do this although I can't say I have tried this particular style of shot with it.

It's free and a great little app so certainly worth trying.
 
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