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Shutter speed when using flash


likealeica

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When I use flash I am generally using a fairly slow shutter speed. But for fill-flash outdoors I have not found use of flash limiting my choice of shutter speeds, unlike an M body which is usually 1/180second.

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I have the Leica SF24D flash unit, and tend to set the shutter spead at 1/125. I find that leaving the X1 on aperture, even wide apertures (2.8, 4 etc) sometimes still ends up with a shutter speed of 1/30, which for me is too slow. A lot depends on the situation & subject though.

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I have the Leica SF24D flash unit, and tend to set the shutter spead at 1/125. I find that leaving the X1 on aperture, even wide apertures (2.8, 4 etc) sometimes still ends up with a shutter speed of 1/30, which for me is too slow. A lot depends on the situation & subject though.

I guess that low ambient light levels dictate this default setting. However there is no reason not to select a higher ISO and set all controls manually. More often indoors, I use a small tripod and deliberately choose a longish exposure using base ISO for quality. That only works if you are not featuring moving people etc.

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Does this mean there is no specific speed setting required?

I think that is correct. However, it is a simple matter to experiment and find the right solution for you. Small flash units have limited reach unless you use others in slave mode.

 

I rarely use flash and invariably need to refresh my technique before tackling anything important. So a few trials and note-taking add to one's personal fund of knowledge in these techniques. I have obtained satisfying results using off-camera cords. (Search forum for earlier discussions). The results are far more natural with viewers not realising the pictures were part-illuminated by flash.

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I rarely use a flash, but when I use my dSLR, I always use the P or even A mode. I seem cant find the right shutter speed if I do it manually. I have tried one time with manual mode and it made my picture overexposed.

 

wda comment is right, if you practice to shoot in low light without using the flash (maybe with a little help from a tripod) the picture always looks more natural. However, sometimes I see people use the flash intendedly to create a polaroid effect by having it bursts directly onto the object's face in close range.

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You cannot compare the shutter speeds for flash on a M camera and on the X1.

The M cameras have a "focal plane shutter" that means that they have a maximum shutter speed possible for flash. Mostly 1/60 or 1/125

The X1 has a central shutter, the plus of this is that you can use all your shutter speeds with flash, up to the maximum shutter speed.

The faster the shutter speed: the less ambient light will influence the picture; the slower the shutter speed, the more ambient light getting into the picture. This gives you more opportunities to manipulate the exposure of ambient light versus flaw light.

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I second JOM51's post here as clear and right on.

 

Beyond that, the use of off-camera flash is really worth the effort. A few years back, I recall while subscribing to Sean Reid's site, perhaps most memorable and inspiring for me was his use of flash with the various cameras and lenses he would write about.

 

Leicas are so much about available light, but some of the really creative "Leica" photographers out there use flash very effectively. Two who come to mind are William Allard and David Alan Harvey.

 

The X1 really lends itself because of the ability to use slower and faster shutter speeds as JOM51 mentioned.

 

DwF

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