Questions tagged [power]

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43
votes
10answers
31k views

What are the dangers of removing a lens while the camera is on?

The manual warns that you should turn the camera off to remove the lens, but it doesn't say why. I suspect this may have to do with dust, but I could imagine there are lots of other reasons. I'm ...
6
votes
4answers
426 views

Are there any ways to combat “sluggish battery syndrome”?

For anyone who has done any extensive photography in very cold weather (weather below freezing), I'm sure they have encountered "sluggish battery syndrome". This is where the camera battery, when it ...
2
votes
2answers
808 views

Can I do anything about a Nikon d750 taking 5 minutes to power on after taking saltwater damage?

I have had a Nikon d750 for a year or so, and 6 months ago it took on a bit of saltwater damage. It still works, but twice in the past it wouldn't power on, once for two weeks and once for two days. ...
7
votes
7answers
19k views

Err 80 appears when I turn on my Canon EOS 5D Mark II

Recently when on holiday in Italy my 5DII stopped powering up. Turn the switch on and - nada. Pulling the battery and popping it back in brings the camera to life, however as soon as the camera goes ...
15
votes
1answer
3k views

Why are battery consumption numbers for flagship Nikon and Canon cameras so different?

I have been looking to acquire new gear and I came across a curious fact regarding the two flagship cameras. The Nikon D5 has a battery capacity of 27Wh (2500mAh, 10.8V), and a CIPA battery life of ...
10
votes
3answers
18k views

Canon DSLR USB Chargers?

I'm wondering if there are any USB chargers available for canon DSLRs. I often head out for extended periods of time without electricity with my camera gear which always makes me nervous about when ...