Shutter speed with flash
Jun 4, 2014 11:59:53 #
I have a Canon 7d, using a 70-200 f2.8L lens. When using my flash, the shutter speed will not go above 1/250. I'm shooting humming birds and I'd like a faster shutter speed. Increasing the ISO doesn't make the shutter speed faster. Is there anything I can do? Is this all I can expect? (I'm shooting out my window on a cloudy, rainy day, but I don't think that is a factor.)
Jun 4, 2014 12:09:16 #
nat wrote:
I have a Canon 7d, using a 70-200 f2.8L lens. When using my flash, the shutter speed will not go above 1/250. I'm shooting humming birds and I'd like a faster shutter speed. Increasing the ISO doesn't make the shutter speed faster. Is there anything I can do? Is this all I can expect? (I'm shooting out my window on a cloudy, rainy day, but I don't think that is a factor.)
mount a flood light on your outside wall , aimed at feeder.
Jun 4, 2014 12:10:55 #
Jun 4, 2014 12:18:37 #
Jun 4, 2014 12:40:40 #
nat wrote:
I have a Canon 7d, ....Is there anything I can do? Is this all I can expect?....
by now you've read your manual and know a 1/250th synch is all she wrote and faster than most of us can get.
The purpose of the flood light is to force your flash to shorten its pulse and freeze those wings.
Jun 4, 2014 13:51:22 #
oldtigger wrote:
by now you've read your manual and know a 1/250th synch is all she wrote and faster than most of us can get.
The purpose of the flood light is to force your flash to shorten its pulse and freeze those wings.
The purpose of the flood light is to force your flash to shorten its pulse and freeze those wings.
I read (well, I tried to) the manual and didn't register much in the old brain cells; now I'm surfing you tube tutorials. I have a Speedlite 430 EXII; apparently there is a high speed sync button on it that will override the default. Gonna try that. Also discovered I have to change settings on the camera. Everything is so complicated!
Jun 4, 2014 13:54:09 #
DavidPine
Loc: Fredericksburg, TX
Your strobe light should do the job of freezing the hummingbird's wings.
Jun 4, 2014 14:05:49 #
DavidPine wrote:
Your strobe light should do the job of freezing the hummingbird's wings.
Yes, I have gotten some good photos doing that, but I was wondering why I couldn't get a shutter speed faster than 1/250. I just viewed a short you tube video, showing the high speed sync button on the flash and ....Voila! I was able to increase the shutter speed with no problem!
Jun 4, 2014 14:27:41 #
nat wrote:
I have a Canon 7d, using a 70-200 f2.8L lens. When using my flash, the shutter speed will not go above 1/250. ...Is there anything I can do? Is this all I can expect?...
this site gives a clear explanation of using your flashes high speed synch, when to use it and when not.
http://www.rpphoto.com/howto/view.asp?articleID=1026
Jun 4, 2014 14:31:00 #
FAQ: High-Speed Synch (HSS aka Auto FP) Speedlight Photography
http://www.uglyhedgehog.com/t-74372-1.html
http://www.uglyhedgehog.com/t-74372-1.html
Jun 4, 2014 16:29:40 #
Nikonian72 wrote:
FAQ: High-Speed Synch (HSS aka Auto FP) Speedlight Photography
http://www.uglyhedgehog.com/t-74372-1.html
http://www.uglyhedgehog.com/t-74372-1.html
:thumbup:
Jun 5, 2014 08:03:17 #
As others have already suggested Hi-Speed Sync is the way to go... but be aware that the higher the shutter speed you select, there will be a decrease in the GN of your flash which you can compensate for by using a higher ISO setting..
Jun 5, 2014 08:09:28 #
Jun 5, 2014 08:13:57 #
bobmartin wrote:
As others have already suggested Hi-Speed Sync is the way to go... but be aware that the higher the shutter speed you select, there will be a decrease in the GN of your flash which you can compensate for by using a higher ISO setting..
The Paonessa article suggests you only lose 1 stop in performance.
http://www.rpphoto.com/howto/view.asp?articleID=1026
Jun 5, 2014 09:07:24 #
I just leave the speedlight set to hi speed synch all the time. Don't always need the higher shutterspeed, but I have not noticed any loss in flash performance when shooting at 80 or 125, or whatever, with the speed synch on.
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