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Old Mar 25, 2005, 3:34 PM   #1
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is it normal for pics to be completely dark when the shutter is set like 1/250 and higher? Like its so dark its not even visble. I understand that the hiher the shutter speed, the darker the picture, but i set it to like 1/80 or higher, u cant even see a picture. does that mean i always have to use a flash? Im using shutter mode for the a95.
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Old Mar 25, 2005, 3:49 PM   #2
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Are you shooting outdoors in full sunlight, or a dimly lit room, or something inbetween? If outdoors in bright sunlight it sounds like a problem, however, if you're indoors it sounds like the shutter speed simply needs to be decreased (or the aperture opened up, or set to higher ISO setting). The other option is to use a flash in situations where you want higher shutter speed but it's otherwise too dark for it...
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Old Mar 25, 2005, 6:14 PM   #3
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im shotting it indoors, well lit room. Whats the shutter speed usually set on in auto mode? just curious
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Old Mar 25, 2005, 6:43 PM   #4
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It depends on the situation. What looks like a well lit room to your eye is always a low light situation.
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Old Mar 25, 2005, 6:56 PM   #5
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If increasing the shutter speed causes your shots to get darker, it means your aperture is already open as far as it will go. In shutter priority mode, it may be possible on many (most?) camera to set the speed too high or too low for the aperture range of the lens. However, the camera should give you a warning of low light or high light. In manual, you may not get a warning.

Also, what is shutter mode on your camera? Is that the same as shutter priority mode on most cameras? I suggest you look at your manual. Standard shutter priority mode allows you to manually set the shutter speed while the camera controls the aperture.

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Old Mar 26, 2005, 1:16 AM   #6
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For an indoor shot without flash the lens is going to open all the way before the shutter drops below the reciprocal of the focal length in auto or program. Just because you can set a faster shutter doesn't mean the camera has enough light to take the picture. Once the lens is open all the way, all you are doing is cutting the light below what the camera needs to take the shot. And indoors the lens is usually all the way open in program or auto.

The only manual control that could give you a faster shutter without getting too dark a picture would be to increase the ISO. You will also do best at the widest angle, both for shutter speed available and for how slow a shutter speed you can use and still get sharp handheld shots.

If you don't like program or auto modes use aperture priority (Av). Open the lens all the way and you get the fastest shutter speed the camera can generate and get a good picture.

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Old Mar 26, 2005, 4:14 AM   #7
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If you don't use flash, then you'll probably need to go as slow as 1/30 or even slower for the shutter speed (in which case you'll probably want to hold your camera really steady, or use a tripod)....and set the iris size really big to get more light in. In this case, moving objects may appear blurred due to the slow shutter speed.

If your camera allows you to change the ISO setting, then make the ISO value larger to increase sensitivity to light.

It's also possible that the flash is not powerful enough to get the result you want for your hand-held shot. In that case, you might need a camera that has a powerful external flash.
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Old Mar 26, 2005, 2:22 PM   #8
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thanks for all the helpful comments! Im going to mess around with the shutter speeds/aperature more. Get better at it
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Old Mar 26, 2005, 2:50 PM   #9
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Note: I'm copying thisfrom another thread (so please excuse anything that's not applicable here, or has already been covered). ;-)

What is bright to the human eye is not to a camera's lens.

The shutter speed a camera can use depends on the amount of light available (which is very low in typical indoor lighting), the aperture of the lens, and the ISO speed.

Indoors with many models, you'll need to use a flash or a tripod (if shooting a stationary subject). Otherwise, the shutter speeds will be too slow to prevent motion blur from camera shake and/or subject movement.

Shutter speed with a flash in low light is not as critical. This is because the flash burst is very short (usually shorter than 1/1000 second).

Since the subject is not usually exposed well enough for proper exposure exceptfor the very short flash duration, the flash itself has the impact of freezing the action in lower light.

I often seta little Konica pocket camera I use to 1/15 second indoors (and this is fine for freezing actionat lower ISO speeds in many indoor lighting conditions at ISO 50 or 100). If you have a lot of ambient light present (for example, light coming in through windows in the daytime), then you may need to go with shutter speeds faster than this (to prevent getting any exposure from ambient light that could cause motion blur).

For outdoor use, shutter speeds are usually much faster. But, the shutter speed a camera needs for proper exposure is still dependent on the available light, aperture of the lens (with smaller f/stop numbers indicating larger available apertures), and the ISO speed (which controls the sensitivity of the sensor to light).

If using flash or a tripod is is simply not desired (and/or you have a moving subject that you need faster shutter speeds for), you canincrease the ISO speed to get faster shutter speeds. Each time you double the ISO speed, the camera can use shutter speeds twice as fast.

However, this will give youhigher noise levels (similar to film grain). A free tool to help reduce the appearance of noise is the Community Edition of Noiseware. You can download it from http://www.imagenomic.com

There are alsosome of good commercial products available for reducing noise when shooting at higher ISO speeds is needed. Here are a couple of them:



Now, if you're using a model with an aperture priority (Av) mode outside, setting it to the largest aperture (smallest f/stop number) will allow the camera to select the fastest shutter speed available (while still insuring proper exposure).

To get an idea of how ISO speed, Aperture and EVimpact the shutter speeds needed for proper exposure in various conditions, see thisexposure calculator (set film speed to the ISO speed you're selecting):


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Old Mar 27, 2005, 5:23 AM   #10
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you guys are awesome. that pretty much cleared everything i need to know. THANKS!
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