Spring 2012

Spring 2012
by ani

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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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4answers
911 views

Why do digital cameras need an exposure time at all?

From what I understand of digital cameras, they are basically a lens plus a tiny two-dimensional array of millions of photo-diodes. And from what I understand of photo-diodes, they create a voltage ...
15
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2answers
1k views

What's the result of stacking ND filters in terms of total stops?

If you stack two 3-stop neutral density filters, does it reduce the exposure by 6 stops or 9 stops?
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5answers
9k views

How do you make a shot look like it was taken at night?

Okay, so I was watching a movie recently, and there was a night scene. The whole valley could be seen in light, and there were some stars as well, and the actors could be seen, but it just looked like ...
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5answers
2k views

How can I handle two extremely different brightnesses in the same picture?

I am the fresh owner of my first DSLR (a Canon EOS 600D, as far as I know called Rebel T3i in the USA). I'm a total newbie, and the camera is a lot smarter than me most of the time. But I'm trying to ...
15
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4answers
5k views

How can I simulate a long exposure photo using a set of shorter exposure photos?

I'm shooting towards the sky to capture the stars. The exposure time is 15 seconds, so I can see the stars still, without a trace. These photos are taken continuously one after the other, because I ...
15
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4answers
2k views

How to maximise contrast range of distant landscapes with blue haze?

Distant landscapes often appear hazy, washed-out and blue due to Rayleigh scattering. What can be done to maximise the contrast range of the exposure when photographing such scenes? For example: ...
15
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4answers
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Why should I use the Zone System when the histogram gives me all the information I need?

DSLR cameras, by and large, give very complete information about how the photo is exposed, in the form of a histogram and image of a trial exposure. It shows the light distribution for both luminance ...
14
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6answers
34k views

How to take fast-shutter-speed photos that aren't dark?

I was taking pictures of some water splashes. I knew I needed a fast shutter speed to make them look frozen in time. I have not used manual mode yet. I use the settings where I can pick the shutter ...
14
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2answers
1k views

How can I take a photo of a dark bar with a bright sign?

I took an image of a dark bar with a bright sign at night using auto mode: ISO 1250 | 1/60s | f/2 What I actually wanted is to be able to read the sign in the background. On this image it is ...
14
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6answers
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Could I have taken this landscape shot better with my P&S, or do I need a better camera?

Edit: Since coming back from Australia, I had my eye on a Sony a5100 for a while, and I bought it in the Amazon lightning deals. I have to say, the Sony takes much better pictures in terms of detail ...
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5answers
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Does a viewfinder cover really make a difference? [duplicate]

Does a viewfinder cover really make a difference? I've heard opinions from people that they are essential for scenarios such as shooting long exposure pictures. I'm just wondering if it is only a ...
14
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5answers
1k views

What exposure was used for successful pictures of the “blood moon”?

The moon in total eclipse is very dark, I discovered. My crop-sensor camera and f/5.6 lens was not up to it. I saw some "cherry red" photos in feeds, but without technical details. I used 1/125 ...
14
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5answers
1k views

What's a good ad-hoc replacement for a gray card?

I know that a real gray card is the best thing to use to determine exposure. But I'd like to know if there are other naturally available features that can be used in a quick and dirty way. Are fields ...
14
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2answers
2k views

How can I think logically about getting correct exposure with flash?

I recently got a new off-camera flash (Nikon SB-700), and I'm having trouble thinking about the variables that go into proper exposure. For example, without flash, I have a little mental decision ...
14
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2answers
955 views

When comparing sensor dynamic range, what are those numbers based on?

Dynamic range EV's are bandied about all the time and I get the feeling that a) they're not on the same 'scale' and b) they're misleading in what they're indicating so I'm hoping somebody can clarify. ...
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6answers
2k views

Could a “universal exposure” setting be practically possible?

Not sure how uneducated this question is, but I'm interested in learning, so thanks in advance for your indulgence. Film physically changes over the period of time it's exposed. A digital sensor, ...
13
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5answers
836 views

Why are only certain shutter speeds or apertures available?

For the exposure control function DSLRs there are specific shutter speeds available. For example there are 1/4, 1/100, 1/500. Why, even in high end DSLRs, is there no option to use a custom shutter ...
13
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9answers
7k views

How do I take a portrait at night with detail in the background instead of just blackness?

I was trying to make a photo of my girlfriend around 9 pm with a D7000, Sigma 24-70 2.8, and SB-900. She was in the center of the frame, taking up about 20% of the frame. About 40% was taken up by ...
13
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8answers
718 views

Why can't digital camera sensors expose each photosite individually?

Why is it impossible for camera sensors to function the way the human eye can? What I mean is, why does a certain portion of the image have to be over/underexposed if we compensate for dark and light ...
13
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6answers
3k views

Can you fix incorrect exposure during post processing?

If a photo is over or under exposed but not to the point of clipping (histogram does not reach the left or right side) is there any reason you couldn't just fix the exposure in Photoshop or Lightroom? ...
13
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3answers
2k views

How can I correctly measure light using a built-in camera meter?

Many times when I shoot photos, the photo is sometimes too bright or too dark and the colors are incorrect. Sometimes, the white in the photo is not the white that I have for a background, but gray. ...
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4answers
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How to achieve pictures filled with light like these?

I would like to know how to achieve the effect of highly exposed pictures filled with light like the ones presented below: unknown source From http://dziecisawazne.pl/iza-faber/ Is this ...
13
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8answers
697 views

What exposure mode and techniques should I use when out-and-about?

I'm interested to hear what exposure/metering techniques people use when taking out-and-about shots (no tripod). I almost always have my camera set to Aperture Priority mode, and I suspect most people ...
13
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4answers
587 views

How to edit the exposure/contrast of two different areas of a photo with a smooth transition between the two parts?

I'm a complete newbee in photography and in photography editing, but I made a a photo I really like with my phone, and I would like to improve it numerically. Here is the photo. I know how to use ...
13
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4answers
286 views

Why do cameras often produce digital images that benefit from levels adjustment?

See: http://www.cambridgeincolour.com/tutorials/levels.htm In the examples on that page, the original image doesn't have any pure white or pure black in it, so contrast can be added by changing the ...
13
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2answers
431 views

How can I use a histogram to expose correctly when the scene is very dark?

If I am photographing a scene with a lot of dark background, how can I use the histogram to tell if the exposure is correct? For instance, at an outdoor concert in which the performers are moderately ...
13
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2answers
1k views

Capturing vapour or faint steam

I was trying to capture a scene that was in a dark area with a bright background. There was faint steam that I wanted to be the focus of the picture. I tried first by having a very large aperture and ...
13
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2answers
654 views

How do I use the +/- scale of the light meter in my camera?

I have just recently used the metering scale. I assume that if the scale arrow points in the middle, this means that the camera detects that the current exposure settings are the "right" ones. ...
12
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6answers
630 views

Are meteors dim?

I was out last night trying to shoot the Geminids meteor shower. I was using a Canon 5D2, 17-40mm f4.0 lens set to 17mm and f4.0, ISO 400. The camera was mounted on a non-tracking mount (only because ...
12
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6answers
39k views

How to take pictures in a dark room?

I'm a total newbie to photography. I have a Nikon D90 and at the moment I'm trying to learn how to actually use it. I've noticed that whenever I shoot in a dark room with the on-camera pop up flash, ...
12
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3answers
2k views

What is sync speed?

When referring to flash exposure, what does "max sync speed" mean?
12
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6answers
960 views

How do I compensate for a bright sun with a point and shoot?

So I'm in the bright sun with no shade around. What can I do to minimize over exposure and shadows with just a regular point and shoot? Should I go into "manual" mode? If so, which mode and what do ...
12
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3answers
803 views

How do you photograph Christmas Lights?

How can you best photograph Christmas lights? I've had tons of problems, the auto-meters don't work at all, and I'm fairly clueless, other than to get a tripod and keep trying until something sticks......
12
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5answers
7k views

What camera settings should be used to capture sky shots without over exposing the clouds?

I have spent some time photographing landscapes with blue sky and white clouds, but the clouds always come out overexposed. I have tried different settings and still have the same result. What should ...
12
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1answer
1k views

What is “exposure safety shift”?

I ran into the term "exposure safety shift" in this answer. What is exposure safety shift, and what is its intended purpose?
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4answers
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How do I get this “Washed out” effect for street photography?

I was browsing an unrelated question here and noticed this photo: http://www.flickr.com/photos/sparth/5730541580/lightbox/ I've seen countless street-photography shots with this kind of color effect ...
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5answers
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How to meter to clear subject details with a strongly backlit scene, as Elena Shumilova does?

Looking at the photos from Elena Shumilova on 500px, you can see a clear preference for backlighting and halo effects on many of her subjects. For example, this and this. How do you meter with the ...
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5answers
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What camera settings would make shooting easy in a darkish church?

I tried to take photographs in a church that was bright enough for human eyes, but I quickly realized the camera couldn't take it. Failing to anticipate this, I didn't bring a tripod. Since I don't ...
11
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5answers
2k views

How do I effectively photograph when the sun is in the frame?

I have been trying to get a good shot out of direct sunlight but my shots just turn out dark, even if I set my shutter speed to the 1000-4000 range at ISO 200. Another odd thing is that even if my ...
11
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3answers
1k views

How do I use the different shutter speeds my camera offers?

If I use a shutter speed below 1/30 on my Nikon P100, I get extremely dark images which are completely unusable. If I use the flash, it comes out fairly bright but just not natural. My camera ...
11
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4answers
7k views

What are good exposure and timing choices for time lapse photography?

I am shooting a time lapse and am doing some calculations beforehand to make sure I get everything right. I am shooting a road trip from the west coast to the east coast and am planning to compress ...
11
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2answers
502 views

Why does exposure compensation have no effect with my hotshoe flash?

Taking photos with my Canon XTi and 550ex. Camera exposure compensation did not seem to effect the exposures. I figured out I needed to use the on-flash exposure comp. But the flash output is ...
11
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5answers
440 views

For night photography with lots of unexposed areas, should I go with high iso and low exposure, or low iso and high exposure?

I have been doing so much research on iso, and for awhile I've been going with the theory that low iso= less noise, so I've been shooting at iso 100 and then adjusting my flashlights and increasing ...
10
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4answers
1k views

Do any other manufacturers other than Canon use the terms Av and Tv?

Canon uses "Av" (aperture variable) for the automatic exposure mode that entails the user choosing the aperture and the camera body choosing the shutter speed. This mode is called "A" by Nikon, and I ...
10
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5answers
5k views

Should I use Manual or (semi-)automatic mode for timelapse in changing light?

I'm planning a long road trip (east coast to west coast, about 45 hours of driving) and am thinking about shooting a time-lapse video of my drive. As I can expect the light levels to change pretty ...
10
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1answer
15k views

How do I use the manual exposure setting in the new Google Camera app?

In April 2014, Google revamped its Android camera app. In the settings menu under "Advanced", there is just one option: Manual exposure. It defaults to off, but after turning in it on, I can't find ...
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6answers
1k views

What are typical situations where you should use auto-exposure lock (AE-L)?

What are the typical situations where you should use AE for locking exposure?
10
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3answers
3k views

What is EV, when used as an absoute measurement?

I know there is already a question about EV, but it doens't quite answer my question. I understand EV as a relative measurement, 1 EV being one stop (doubling or halving the amount of light), but what ...
10
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4answers
1k views

How to choose the correct exposure?

I have a Canon 60D that I use for my primary hobby that is photography, but sometimes the pictures that I took are with the incorrect exposure like this: So I want to know how I can choose the ...
10
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2answers
470 views

How can I expose a waterfall scene correctly?

Last day, I was photographing a waterfall. It was a bright day and I was shooting around 2-3 in the afternoon. I set aperture to f/11 and took the meter reading pointing camera towards the sky. ...