For me, underexposure without a deliberate reason for a specific camera or image is poor photographic craft.
Underexposure
Underexposure occurs when the image sensor (or film frame) did not receive enough exposure time from the light source, ...
UNDEREXPOSURE - An image is underexposed when the film receives too little light for proper exposure. Underexposure results in loss of detail in the subject's dark areas, which can be almost completely black and featureless.
Underexposure
A condition in which too little light reaches the film, producing a thin negative, a dark slide, or a muddy-looking print.
Unipod
Also refer as monopod. A one-legged support used to hold the camera steady. Also see "tripod".
Underexposure - when not enough light reaches the sensor making the picture too dark
Vignetting - underexposure at the edges of a picture
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Underexposure The result of the film or imaging sensor receiving too little light. Unipod See monopod.
Underexposure
Improper exposure causing an image to look too dark. There is a loss of detail in dark areas.
Overexposure ...
Underexposure
A condition in which too little light reaches the film or camera sensor. In general digital handles underexposure better than negative film. Underexposed film will producing a thin negative, a dark slide, or a muddy-looking print.
Underexposure. Exposing the film to less light than is needed to render the scene as the eye sees it. Results in a too dark photograph.
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Underexposure
A picture that appears too dark because not enough light got to the imaging system.
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Underexposure, Prints of Darkness *
The result of too little light or too small an f-stop. See: Thin. Underexposure may also occur if you have a lazy agent.
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Away from the audience or camera.
(*) Underexposure -- Insufficient exposure of film or photographic paper to achieve the desired image.
Underexposure
Shutter-priority mode lets you choose the shutter speed you need to freeze or deliberately blur camera or subject movement and the camera automatically sets the aperture to give you a good exposure.
Underexposure results in more visible noise. Darker regions contain more noise than lighter regions in digital capture; the opposite is true of film. This is because the darker regions are recorded with fewer photons and less bits of data.
Underexposure of image corners produced deliberately by shading or unintentionally by inappropriate equipment, such as unsuitable lens hood or badly designed lens. A common fault of wide-angle lenses, owing to reflection cut-off, etc.
Underexposure means that not enough light has been allowed to reach the film or sensor. The photo is too dark, the shadowy areas have gone black and the detail has been lost.
Underexposure should be avoided. In fact, for digital cameras, maximizing the exposure is often the best policy (for more information on maximizing exposure, see Digital Exposure).
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Underexposure: The result of too little exposure in the camera or when making enlargements. It reduces density and contrast.
Uprating: Rating a film at a higher speed index than normal.
Underexposure
Overexposure
Blurred Images
We already covered these above, but let's recap.
Underexposure
An underexposed image will be too dark, shadow areas will lose detail.
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Underexposure
A condition in which too little light reaches the sensor, producing a dark or a muddy-looking image.
Unipod
Also refer as monopod. A one-legged support used to hold the camera steady. Also see "tripod".
Underexposure - result of too little exposure in the camera or at the enlargement stage.
Universal developer - name given to a number of developing solutions, usually MQ, indicating that they can be used for processing films and papers.
The underexposure is corrected without overexposing the sky
And as you can see from the new histogram, the spike at the left is gone and replaced with a nice smooth bell curve: ...
Err on the side of underexposure
Of course, it goes without saying that you want fantastic exposure, but if you can't get it quite right, err on the side of underexposure (let your scene be a little dark).
Underexposure produces low-contrast negatives that result in prints having a muddy gray background instead of a clear, crisp, white background.
Excellent color, slight underexposure.
Macro
Like most Lumix models, the TZ1 has a dedicated macro mode, accessed via the main mode dial.
Underexposure (too little light) has the reverse effect. In enlarging, overexposure makes a print from a negative too dark and a print from a slide too light. Underexposure has the reverse effect.
As a result, many shooters err on the side of underexposure. Fortunately, we have a very easy way to evaluate an image immediately after it is taken, simply by examining the histogram on the camera's LCD screen.
At best, a flat card is an approximation to a three-dimensional scene, and measurement of a test card may lead to underexposure unless adjustment is made.
If the majority of pixels are biased to the left and there’s a mountain touching its edge, the image will suffer from underexposure. Dial in PLUS compensation and retake the image. Check the histogram again.
There's no need to dial in any positive exposure compensation here - with no highlights to fool the camera's metering system into underexposure, the snow will automatically be rendered bright.
But rather than needing to be as grossly underexposed as I had to when comparing shadow detail, gradient rendering started to suffer at even modest underexposure.
The white color confuses the sensor and convinces it to compensate for the extra light, and the result is a picture which is darker than what you've wanted (underexposure).
Now your film is receiving half as much light as it requires (underexposure). To compensate for this you select a slower shutter speed of 1/60th of a second so it now stays open twice as long as before and passes twice as much light as before.
Or.
I prefer low key as the slight underexposure is far easier to work with than lost details. Now, I really like the color shifts in the high key images but that is fairly easy to accomplish in Photoshop.
Every shot is pretty much correct exposure and very no evidence of underexposure even with highly reflective surfaces!!! ...
Typically white overcast skies, snow or beach scenes will need compensating by +1 to +2 stops (EV) as the (overoptimistic) meter reading will lead to underexposure.
Three quick ways to fix underexposure.
Was your camera's autofocus tricked by a bright spot in the frame? Did you underestimate the exposure you'd need for your subject?
Try these techniques to salvage those too-dark images.
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A Glossary of Photographic Terms: U-Z
Underexposure A condition in which too little light reaches the film, producing a thin negative, a dark slide, or a muddy-looking print.
Unipod A one-legged support used to hold the camera steady.
(1) the range of camera exposures, from underexposure to overexposure that will permit acceptable reproduction; ...
Light coming from behind the photo subject. Can cause underexposure of the main subject with auto exposure systems. Situation lending itself to the use of fill-flash and/or spot metering.
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The AF sensor coupling may help to reduce the underexposure risk in the image above because the selected AF point to a relatively dark spot (= different to the TTL flash metering result).
Using Long focal length also comes with the disadvantage of decreasing the amount of light that enters the lens, which may cause an underexposure problem. WHY does this happen?
Thin - transparent, as in the film due to underexposure
Dense - very dark, as in the film due to overexposure
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Sometimes excessive light reflecting from haze or mist can fool the meter into underexposure.
Credit: Photo: Torsten Karock/iStockphoto
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Push-processing
A technique used to increase contrast and film speed by underexposure and overdevelopment. Also known as uprating.
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A technique in which the suggested film speed is deliberately exceeded, by setting a higher speed on the camera, so causing underexposure, and then balanced by overdevelopment. Also known as "pushing".
A technique used to increase contrast and film speed by underexposure and overdevelopment. Also known as uprating.
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As a general rule, slide films can survive a little bit of underexposure better than overexposure. The opposite is true for negative or print film. Always try to error on the side of overexposure for print films.
Gross underexposure will still result in a horrible image with lots of noise while with gross overexposure you can say bye-bye to detail. It does mean you can "tweak" the exposure and correct your initial capture.
Term for lack of, or loss of, shadow detail in a photographic image, usually the result of underexposure or lower resolution (and less dynamic) imaging sensor. Can sometimes be partially corrected in Photoshop or similar photo editing applications.
To expose film at a higher film speed rating than normal, then to compensate in part for the resulting underexposure by giving greater development than normal.
Push Processing: The technique of over developing film to compensate for intentional underexposure by the photographer. Commonly used to gain faster shutter speeds or greater depth of field than normally exposed and processed film will permit.
With an east-facing pier you’ll have the opportunity to shoot into the sun, turning the structure into an ornate silhouette with the sun in frame. Slight underexposure may deliver more vibrant sky colours, but keep an eye on your DSLR’ ...
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Normally you would consider compensating for the meter, but in this case underexposure gives the image more atmosphere and was left without compensation. Enderby Island, Sub-Antarctic Auckland Islands. Kodachrome 64.
Underexposure: The muddy, dark areas of a photograph due to too little light reaching the film.
White Balance: A function on the camera that compensates for different colors of light being emitted by different light sources.
Artifacts: Unwanted effects in the image such as blotches (from over-compression), Christmas tree lights (multi-colored speckles from bright highlights), noise (granularity from underexposure) and other aberrations that sometimes afflict digicam ...
I tend toward underexposure simply because I like richer colors. Don't know if you should under- or overexpose? BLH! (Bracket Like Heck--in other words, shoot a range from under to overexposed images.) ...
So the next time you are trying to take a high-contrast shot, think about trying out the Spot metering mode - so long as your subject is in the center of the scene then this metering mode should avoid over or underexposure in almost any situation.
 See also: Exposure, Camera, Light, Image, Photograph
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