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by Vian Esterhuizen

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Exposure is the total amount of light allowed to fall on a sensor or film during the taking of a photograph. This is determined by the exposure time (shutter speed) and amount of light admitted (lens aperture). Today, sensor/film sensitivity (ISO speed) is often also considered to be part of ...

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Why does my flash have lower power in automatic than in manual? [duplicate]

I have a Sony HVL-43AM flash. I've found that when I'm in automatic mode, when I dial the flash exposure compensation to -2EV I was able to get a much weaker flash than if I went manual with the flash ...
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1answer
87 views

How is the exposure of this histogram? [duplicate]

Is exposure correct for this luminance histogram? What does this say about the dynamic range of the scene? The link is here below. It's the graph with dots. http://tinypic.com/r/b85mkj/6
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Different sources of noise and ways to avoid/correct those [duplicate]

Possible Duplicate: What types of noise can be present in digital photographs? I've few questions related to noise found in digital images. There are topics on this forum on underexposure ...
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2answers
754 views

Why are my images always underexposed in Tv/M mode?

With the 18-55 mm kit lens on my Canon 1100D in Tv or M mode, when the shutter speed is more than 1/200th it always always produces dark images. The max f-stop this lens can go to is f/3.5. SMALL ...
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3answers
80 views

What are the parameters for evaluating photos [duplicate]

I understand that different people enjoy same photo at different levels. However in general what are the most important parameters that we use to evaluate a photo’s quality? Some of them that I can ...
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1answer
140 views

how to neutralise exposure in Manual mode [duplicate]

Possible Duplicate: How do I know I have the correct exposure when shooting in manual mode? I have a canon 550d, initially the settings were fine in Manual mode, but know I see following ...
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2answers
103 views

How do shutter speed, ISO and aperture work together to control exposure?

When shooting in natural or ambient artificial light (without flash, basically), how do light, shutter speed, ISO and aperture work together to control exposure?
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2answers
108 views

Exposure with AI SERVO

I am interested in how works AI SERVO in terms of metering. As it tracks objects, when is the exposure set and how can I set it manually? Is it set automatically when the shutter button is pressed?
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1answer
45 views

Illumination question [duplicate]

I meter a surface at ASA 100 and get F4 at 1/15 second. What is the illumination coming off that surface in Cd/square foot ?
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What is Exposure value [duplicate]

can you guys help me with understanding the basics about what is Exposure value and how to use that for better photography?
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1answer
1k views

How does aperture affect exposure? [duplicate]

I've heard that aperture can change the exposure, but I would like to know if this is true, and how it does it. P.S. I hope this question isn't dumb like my last two.
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What TECHNICAL aspects of STUDIO photography do I need to know as a professional? [closed]

Even if it's basic I want to know! So for example, what technical things do I need to know about the camera, what technical things do I need to know about lighting and exposure? Anything you think I ...
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What are the pros and cons of setting my camera to lock exposure on half press? [duplicate]

The Sony NEX-5R has an "AEL w/ shutter" option that Sets whether or not to fix the exposure when you press the shutter button halfway down (On/Off) (from the manual) What are the pros and ...