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#1
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External flash Vs built in
I'm thinking of adding a Sunpak 383 external flash to my
FZ20 and I wonder specifically how much it will increase its' forward range? The max rating of the Sunpak is 60 ft., but is it really effective at that distance? I often take pictures of my friend's band performing in theaters. The light from the stage is not enough and the internal flash doesn't have the range. |
#2
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Swingman wrote:
I'm thinking of adding a Sunpak 383 external flash to my FZ20 and I wonder specifically how much it will increase its' forward range? A lot. The max rating of the Sunpak is 60 ft., but is it really effective at that distance? The guide number is 120. If your lens is f/2, your camera is ISO 100, then the range is 60ft. If your lens is f/4, then the range is further halfed to 30ft. If your camera is ISO 400, then the range is doubled... I often take pictures of my friend's band performing in theaters. The light from the stage is not enough and the internal flash doesn't have the range. If you use a tele lens longer than 200mm, then put a fresnel lens in front of the flash. http://digitcamera.tripod.com/#flash |
#3
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In article .com, bj286
@scn.org says... Swingman wrote: I'm thinking of adding a Sunpak 383 external flash to my FZ20 and I wonder specifically how much it will increase its' forward range? A lot. The max rating of the Sunpak is 60 ft., but is it really effective at that distance? The guide number is 120. If your lens is f/2, your camera is ISO 100, then the range is 60ft. If your lens is f/4, then the range is further halfed to 30ft. If your camera is ISO 400, then the range is doubled... I often take pictures of my friend's band performing in theaters. The light from the stage is not enough and the internal flash doesn't have the range. If you use a tele lens longer than 200mm, then put a fresnel lens in front of the flash. http://digitcamera.tripod.com/#flash I have and use three Sunpak 383 flashes and they are quite good value for money. On my Sony F 828 I shoot from 30 to 50 ft from a large dark subject in an arena that barely has enough light for the camera to focus. At 40 feet, f3, iso 100, the 838 lights up a horse and rider quite well, and I have no complaints. On my Canon 300D at ISO 400, I get quite good results at f4-f5.6 up to 60 feet. Of course these shots are made in Manual mode. The much more expensive Sony "Auto Flash" ($200 US) is good only to about 20 feet, and the one time I tried the Canon flash designed for the DRebel, the camera under exposed so badly, I regreted even wasting the batteries on the Canon Flash. -- Larry Lynch Mystic, Ct. |
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