Long exposure power

[tgr141291]

Is there anything that i can buy to hook up to my camera to provide power for when i do long expousres?

When i was in vancouver i was staying in an appartment with a gret view over the city and i set my camera up to do a 5 hour exposure. However, when i woke up i found that the battery had gone dead and there was no image recorded.

I currently have a 400d but will be upgrading to a 50d soon

Cheers,

Tom

[Jon]

Canon makes an AC adapter for at least the BP511 that the 50D takes. I'm not sure about the 400D, but I'd suspect there's one for that as well.

[tgr141291]

What about if im in the middle on nowhere, is there any type of power source not connected to the mains that i can get?

[Jon]

You could hook the AC adapter up to an inverter, or make up a DC power supply to match its output (the adapter consists of a converter and a plug-in battery replacement).

[EveryMilesAMemory]

If shooting from or near a vehicle, I'd second the use of an inverter.

We have one hardwired into our truck batteries so while driving we recharge all our batteries (Cameras, Flashes, Laptops...etc) and if needing to do a long exposure, you could run the inverter which would power a AC adapter to keep the camera going all night long

[Josh_30]

http://www.amazon.com/Canon-ACK-DC20-Adapter-PowerShot-Digital/dp/B000B64AVS/ref=sr_1_1?ie=UTF8&qid=1249790492&sr=8-1

I think this is what you need for really long shots with the 400d, plus the inverter.

[gjman]

............When i was in vancouver i was staying in an appartment with a gret view over the city and i set my camera up to do a 5 hour exposure.........

I agree with others who have suggested the ACK adapter but I have a conceptual observation:

You want to take a 5 hour exposure of a city scape-car headlights, city lights and all ? I would guess that it would be completely blown out.

5 hour-8 hour-10 hour exposures are great for star trails in the middle of a wilderness where there is no other source of light (except the moon) and then the star trails really pop.

If you doing car tail lights in a city you don't need 5 hours, that usually a 10-20 sec exposure.

Unless you have something else planned for Vancouver in which case I would be really curious to see a multi hour exposure.

[rowdy_kk]

Maybe he is going for a 6 month exposure like this....

http://www.gizmodo.com.au/2009/08/six-month-long-camera-exposure-captures-solstices/#more-344682

[tgr141291]

I had some ND's stacked and at f/22. for the 5 hour one

i did a 10 min at f/6.3, but wanted to experiment hence the 5 hours

[tgr141291]

This is a 601 second exposure