Questions tagged [power]
The power tag has no usage guidance.
39 questions
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Is EOS R7 USB power supply currently under vendor lock-in?
I upgraded the firmware of my Canon EOS R7 to version 1.6.0, whose documentation says that it's possible to charge the battery on-body over USB power supply. However, all the documentation seem to ...
- 147
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0
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333
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My 60d won't turn on - even with a fully charged battery
The camera does not power on, even when the battery is fully charged. It is not a battery problem. I have used the battery with other cameras without any problems. The battery indicator on the top LCD ...
- 1
2
votes
2
answers
235
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Why does my camera randomly shut off and show green all over the screen?
My camera is an Olympus FE-360 digital camera from 2008. I have never had any problems with it but recently my camera will turn on and work completely fine for about a minute, but then will either ...
- 23
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3
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61
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Determining the Flash to Subject Distance with an Olympus FC-WR
I have an Olympus FC-WR commander and an FL-700WR flash. The flash will show me the flash to subject distance when it's in the hot shoe, but not when I'm using wireless mode with the FC-WR.
Is there ...
- 1
3
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2
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411
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Mixing ambient with flash and how to calculate this?
I have a question I hope someone can shine a light on for me.
I usually shoot with flash only or ambient only. I need to do a small shoot on location where I must balance ambient with flash. Its a ...
2
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2
answers
658
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How do I fix my Yongnuo speedlight not firing unless it's connected to an external battery?
Does anyone recognise this problem? My Yongnuo YN600EX-RT II will only flash when it's connected to an external battery.
Set-up:
Canon EOS 1D Mark II
Yongnuo YN600EX-RT II flash (loaded with 4xAA ...
- 21
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0
answers
660
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Why is my Canon camera not turning on?
If I turn on my Canon camera a red light blinks but my camera is not turning on. There is no clicking sound and if I press any buttons nothing happens. What is wrong with the camera?
The battery is ...
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2
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2
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117
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Single power-source option for still camera rig
I want to build a camera rig for still shots with a monitor and 1 or 2 flashes. Such rig would force me to have 3 different types of batteries and I don't like this complexity. I wonder if there are ...
- 181
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2
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3k
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Will my Canon battery charger work on 220 V power?
I bought this battery charger in the US (110 V 60 Hz) for my Canon T5 Rebel. I'm now living in Sweden (220 V 50 Hz).
Will my charger work on the Swedish power grid without breaking? The issue is, ...
- 237
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758
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Sony ZV-1: USB Power Supply setting does nothing?
I recently purchased a ZV-1 and have been coming up to speed with all its settings. One thing I haven't managed to figure out, is what the "USB Power Supply" ON/OFF toggle does.
This should ...
- 103
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450
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What to use as continuous power supplier with Sony a7II?
I try to figure out how to provide my camera with enough power during video shootings and I have purchased a dummy battery with USB-C power adapter to connect it to power bank, but when I connected it ...
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3
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242
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Why would a photographer use a single head 1200 W∙s flash?
I comprehend Godox produces a 1200 W∙s single-head flash (AD1200). But I don't have any idea why a photographer would use it.
I have a 1000 W∙s Dynalite pack, but it also takes one, two, three, or ...
- 315
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2
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5k
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What power supply do I need to run the Nikon Z6 II continuously on USB?
I have a Z6 II that is supposed to be able to run off USB power that I got for making videos. I've tried using it with a 120v AC to USB adapter plug (the kind you plug a phone USB cable into a wall ...
- 163
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2
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196
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Canon 80D DC Coupler to automatically turn DSLR back on after power outage
I am setting up a very long term time lapse and a big concern is that if the power goes out I need my DSLR to automatically turn back on. This is because I will have limited access to the camera when ...
-1
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3
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73
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power out though USB port [closed]
Does anyone know how much power out we can get from the USB port in a DSLR camera. Is it possible to get an output like 3.7v 1500mAh battery can supply from a DSLR?
- 107
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Why won't Canon EOS 400D turn on?
I have the Canon EOS 400D - also known as EOS Digital Rebel XTi, or Kiss Digital X in Japan - and as of tonight, it stopped working. It won't do anything, with or without batteries or a CF card, ...
- 51
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Connecting Sunpak 2-pin flash plug to JJC BP external battery pack
Would you have any suggestions about hooking up the JJC BP (the one with interchangeable power cable for Nikon, Canon, Sony) to a Sunpak DR12X or 36DX flash with 2-pin plug? Would you know the ...
4
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3
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3k
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Why is flash power given in watt-seconds (Ws) and not joules (J)?
Flash manufactures often (always) specify the power in watt-seconds (Ws), and not in the SI unit joules (J). See and example for the Godox studie flash QT series.
Since the unit conversion says that ...
- 379
5
votes
6
answers
870
views
Can I maintain the same flash pulse duration but increase light with multiple flash units?
I own a Yongnuo YN-560 III speedlite, and I found out that it lets me freeze motion (for example, a water splash) at 1/16 of its power. However, the amount of light at 1/16 is not enough to properly ...
- 153
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1
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2k
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How can I use my Olympus OMD E-M10 with a continuous power source?
I'm looking to shoot a time lapse with my Olympus OMD E-M10 and I was wondering it it is possible to use an external power source. Standard battery life isn't too good on this camera; it only takes ...
- 113
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2
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1k
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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.
...
- 21
2
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4
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119
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Can I dim lights by making amount of power smaller?
Can I dim lights by making amount of power smaller? I'm using Falcon Eyes LH-ESB6060K lighting kit.
I thought, It should be possible, but is it safe? And is there any other way to dim it?
- 23
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484
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My Canon 50D is always on. What can I do to minimise battery loss?
The on/off switch on my Canon 50D is broken - as long as the battery is charged, the camera is on.
I have set the automatic shutdown to 1 minute and try to avoid accidentally turning on Live View or ...
- 113
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1
answer
4k
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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 ...
- 735
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2
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13k
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Why is my Canon 600D not turning on?
My Canon 600D was working fine till the last two months when issues started rising. When I switch it on, I don't see the red blinking light and it's not turning on. The last time, I removed the ...
- 21
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1
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180
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Why camera does not have a USB port to connect to PowerBank for power? [duplicate]
I notice that almost all camera use either a proprietary Li-ion battery or AA size battery for power.
May I know what is the reason for not having a camera that have USB port that can be connect to a ...
- 13
1
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2
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554
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In a multiple strobe setup, how powerful must each strobe be?
I am about to buy my first strobe set. I want to do portrait photography, both in a home studio and outdoors. No weddings, no events, no more than one model at a time.
I see that a complete set ...
- 25
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162
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Is always leaving power on bad for CMOS?
I am pretty new to DSLR, and there is one thing I am curious about. I watched some videos and heard from my friends that it is ok to turn the power button on even you do not use the DSLR (camera will ...
- 371
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475
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Is it normal for the left pin on the Nikon SB-910’s 3-pin external power source terminal to be deeply recessed?
I’m examining the external power source terminal of my newly purchased Nikon SB-910 speedlight.
(The terminal is for connecting an external battery pack. It is located on the front side of the ...
- 379
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1
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484
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External power for compact camera?
I would like to experiment with time lapses using compact cameras (like Coolpix S6300), as I don't want to put an extreme number of clicks on my DSLR for the moment.
Are there any solutions for ...
- 2,883
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2
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296
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Canon T5i (lp-e8) high capacity battery grip/battery bank?
I have two Canon lp-e8 batteries that I use for my T5i but they run out of battery pretty quickly (only 1,120 mAh each) and then I'm left with nothing.
I have a 15,000 mAh battery bank that I use ...
2
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1
answer
613
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Camera suggestion needed for long term remote timelapse
I'm working on setting up a remote timelapse waterproof system for a long term project. The idea is to have it on solar power.
I'm currently playing with the CHDK firmware on a Canon PowerShot Elph ...
- 141
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3
answers
609
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Battery for Nikon CoolPix L26
I have a Nikon CoolPix L26 digital camera and am using the rechargable battery that came along with it. It is a 1.2V / 2100 mAH battery (Infinite brand)
Even when I fully recharge the battery and use ...
- 169
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10
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9k
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Why is my Canon 5DMIII draining batteries overnight?
I have a 5DMIII with battery grip (by Canon) and Canon batteries. Since a few days ago, I noticed that, all of the sudden, if I leave the camera unused for, say, one day and turned off, when I turn ...
- 1,857
3
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1
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380
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What is the efficiency of Bulb mode vs taking multiple shorter exposures?
When looking at taking photos such as star trails where it requires a significant exposure time, is it more power efficient to use Bulb mode or taking multiple shorter exposures?
Would keeping the ...
- 355
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3
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18k
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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 ...
- 2,546
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7
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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 ...
- 468
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4
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454
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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 ...
- 70.8k
44
votes
10
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39k
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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 ...
- 3,149
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