Napioa - Wind Origins

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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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6
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3answers
286 views

Should I set exposure on my camera or later with software?

With most cameras (Point-n-Shoots and DSLRs) I have always seen exposure settings for exposure. My question is this, should I mess with exposure in the camera while taking the shot or use software ...
6
votes
4answers
1k views

Does the same aperture at a shorter focal length allow for faster shutter speeds?

I was about to ask why the new Canon 24-70mm F/2.8L II doesn't have IS, but then I came across the answer to Why there is no Canon 50mm *IS* lens? and it got me thinking... (The short version of the ...
6
votes
4answers
1k views

How to correct photos which were overexposed at the edges only?

I'm dealing with a set of photos where a model was photographed against a white backdrop. The problem is that due to the setup, way too much light reflected off the backdrop. So the model's face (for ...
6
votes
4answers
1k views

How do I get a meter reading for a DSLR without a gray card?

I read an article called Expose (to the) Right, which explained why you should try to get the graph of the histogram as much to the right of the scale as possible. The reasoning is that DSLRs record ...
6
votes
2answers
332 views

Can telephoto lenses cause the background to be darker than the foreground in the same light?

I took this photograph yesterday afternoon at around 5:15pm EDT, about two hours before sunset: The sky, in my perception, was bright, and my little subject is standing in the same lighting as the ...
6
votes
3answers
733 views

How many stops are there between middle gray and white point?

I’m trying to wrap my head around the relation between exposure, dynamic range, stops of light, and middle gray. I’m going to ask several questions on that topic. Some of them can be stupid or ...
6
votes
1answer
806 views

Bracketing with ISO or exposure time?

With old cameras, you had film with fixed ISO and you could bracket your shots by either adjusting the f-stop or exposure time. Normally, if I have enough light, I prefer to keep the f-stop constant ...
6
votes
2answers
521 views

How do I take a photo like this (very bright)?

I've always wondered how these pictures are taken. They have a very "bright" feel to them. And it feels that they are "bathed" in golden sun light. I understand that I have to take this during the ...
6
votes
4answers
9k views

How do I know I have the correct exposure when shooting in manual mode?

I have a Canon XTI which I've been using for a few years now. Most of the time I'm been shooting in one of the "semi-manual" modes like aperture priority or shutter priority, but now I'd like to try ...
6
votes
2answers
2k views

When to expose for the shadows vs expose for the highlights?

I'm a beginner photographer and I have read articles that advocate exposing to the right (ETTR) and articles that advocate exposure to the left (ETTL), and this has left me quite confused. I assume ...
6
votes
2answers
2k views

Pentax P-TTL: Why and when does underexposure occur and what can I do?

Pentax's P-TTL flash metering system tends to be unreliable and may underexpose at times. When and why does the system underexpose and what can I do? I want to know the situations that cause flash ...
6
votes
2answers
4k views

How do I take automatically bracketed exposures with the Canon XSi?

I'm trying to help someone with a Canon XSi. I'm not used to the Canons that use menus (rather than buttons on the body). Does anyone know how to set up the Canon XSi to take a bracketed exposure of ...
6
votes
2answers
186 views

How does sensor size affect the brightness of an image given the same field of view and aperture?

Lets say we have two image sensors, each one with 1MPixel resolution but differing in size. The first sensor has the size 1/3", the other one 1". Each sensor is equipped with a suitable lens (for the ...
6
votes
1answer
459 views

Why doesn't exposure change when changing focal length?

With a Canon 550D camera and a Tamron 18-270 mm zoom lens, I tried to fix shutter time, aperture (f/8.0 to cover all zoom range), and ISO, so the exposure meter read 0.0 with 18 mm focal length and ...
6
votes
5answers
253 views

Do the clipping indicators in Lightroom show that the value is at the maximum, or beyond?

The clipping indicators in Lightroom show when a channel or all channels are clipping in either the shadows or the highlights, but I've seen them used in two ways: Use them as an indicator of when ...
6
votes
2answers
143 views

How do objects in the dark come up when post processing?

I took one shot of oil lamps. Partial metering mode was used and I focused on the bright yellow light, as expected the image was captured with only the light and its immediate surroundings visible. ...
5
votes
6answers
2k views

Difference between short/long exposure for faraway objects?

Say I want to take a landscape-type photograph of some large object in the distant (focus at infinity); for instance a mountain range at the horizon, or even the moon. Suppose no closer objects appear ...
5
votes
4answers
14k views

How can I set an exposure time over 30 seconds with a DSLR?

Most DSLRs have an exposure time limit of 30 seconds. Now I'm asking myself how is it possible to create images about over 1 hour or longer, like these two: ...
5
votes
7answers
1k views

How can I use flash with large apertures?

I get very frustrated. When I take portraits, I want to use a flash because I think they turn out better. But if I use an f-stop that is high enough to blur the background, my shutter speed only ...
5
votes
3answers
447 views

Canon EOS700D Flash: Why are exposure times different in modes P and Av if all settings are “equal”

Yesterday I ran a little test with my Canon EOS700D's built in flash in both P and Av modes. I had the camera set up with no flash exposure compensation. I took a test photo in mode P and it looked ...
5
votes
1answer
1k views

How do disposable cameras work without exposure and focus control?

Before I got into photography, I used to use disposable cameras with ISO 400 film. I've gotten some decent results in various lighting, both inside and outside and at different focus distances. How do ...
5
votes
3answers
239 views

What is the effect of directly changing exposure from the camera's menu? [duplicate]

Possible Duplicate: What is exposure compensation? In the Aperture Priority mode (Av), changing the Aperture size would automatically adjust the Shutter Speed to ensure proper exposure. I ...
5
votes
4answers
3k views

How does one deal with too much light when taking a photo?

How does one cancel out extra light while clicking a photo? Is decreasing the aperture a better option, or using a faster shutter speed? What are other options we could try?
5
votes
1answer
406 views

Is it normal for Nikon DSLR viewfinder and live view shutter speeds to differ?

I have a Nikon D600 set up on a tripod in a room with decent light. I've tried using 2 different lenses & when I switch from the viewfinder to live view, and vice versa, the shutter speed is ...
5
votes
5answers
1k views

When I change the EV compensation, how will that affect my aperture, shutter speed, or ISO?

Let say that we have the following values, as an example: Shutter speed: 1/40 Aperture: 2 ISO: 1000 How can I get the EV number for this exposure, extract (or add) an EV value (0.33, 0.66 etc.) and ...
5
votes
3answers
896 views

When should I use exposure compensation?

When should I use exposure compensation, rather than ISO, shutter speed or aperture?
5
votes
2answers
3k views

How to reduce the effect of bright day light in the photographs?

This photograph was taken at around 9:30 AM. The sunlight was bright. I can't shoot in raw. I have adjusted the brightness and the contrast by which at least the tree is appearing brighter. Look at ...
5
votes
4answers
12k views

How can I improve my exposure in low-light situations?

I am new to photography and have been struggling with low light scenarios. I have a Nikon D3100 and an SB-900 flash. Regardless of my ISO, aperture, or shutter speed settings, when I am ...
5
votes
1answer
290 views

Why am I am seeing rings (banding) instead of smooth graduation in my sunrise pictures?

Below is a screen capture crop from Potoshop of an unaltered raw photo from my full frame Canon 6D taken with the new Canon 16-35 f4 L at 16mm, ISO 100, f22. I am seeing rings where I am expecting a ...
5
votes
2answers
465 views

How to create awesome nature time lapses

Please have a look at these amazing time-lapse videos: https://www.youtube.com/watch?v=uFNWEKHHBFQ https://www.youtube.com/watch?v=mcixldqDIEQ I just don't get how they do it. I am a fairly ...
5
votes
2answers
598 views

Develop Canon Raw images on Mac OSX via command line into mutliple tiffs for pseudo-HDR

What is the best way to convert on the command line a Canon raw file (CR2) into 2 or 3 differently exposed tiffs for HDR/tonmapping? I would like to use Apple's sips, but couldn't find anything to ...
5
votes
4answers
2k views

What's the difference between holding a half-pressed shutter button and pressing the AE lock?

As I have been looking around today the AE lock button is supposed to lock in the focus and exposure settings (aperture and shutter) so that the picture can be recomposed before taken. I also believe ...
5
votes
2answers
187 views

What's the difference between “exposure level indicator” and “exposure setting meter” in the Canon EOS 1DX Mark II viewfinder?

I have been looking at the manual for the latest Canon 1DX Mark II camera. I am confused about one aspect of the viewfinder. On right side of the viewfinder is the Exposure level ...
5
votes
1answer
437 views

Is there a way to correct exposure on photos in a panorama taken without AE lock on?

I made a stupid mistake on some of my pano's I shot this past weekend, I forgot to hold AE-lock. Now I've got about three photos that I can't use due to difference in exposure on them. Is there a ...
5
votes
1answer
269 views

How do I compensate for lack of exposure lock on a Canon AV-1?

I just got my first roll of film printed and noticed that some of the exposures were off. I don't know why I didn't notice this before but there isn't an AE-lock on the Canon AV-1. My question is, ...
5
votes
2answers
815 views

Should my Nikon D3100 adjust settings to allow for use of flash in AP or SP mode

When I'm shooting with the onboard flash in low light conditions, I observe the exposure preview settings between no flash and the flash popped up - there appears to be little or no difference between ...
5
votes
2answers
242 views

How do dedicated light meters account for light transmittance?

Dedicated light meters seem to be well-regarded for their versatility and accuracy of metering. What puzzles me about them is how can they account for the different light transmittance of different ...
5
votes
1answer
519 views

What is the logic behind “Brother Backlit Sky” in the book Understanding Exposure?

I don't know if this question is too specific, but after reading Understanding Exposure, I can't understand very well the reasons and logic behind Brother Backlit Sky and their brothers. Although I ...
5
votes
2answers
116 views

How large an exposure difference before it's noticable?

I'm being forced to work with a shutter that jitters (e.g., a 1/60 shutter could be anywhere between 1/59 and 1/61). I can't change the hardware, so please don't suggest that. I would if I could. ...
5
votes
0answers
108 views

How can I take slow, wide-open photos in bright light? [duplicate]

Possible Duplicate: What are neutral density filters and how do I use them to create long exposures in daylight? I like to take photos of motorsports and high speed action. Sometimes I use ...
4
votes
8answers
8k views

How do I properly expose dark scenes containing bright light sources?

I'm new in photography, however I have some basic knowledge of exposure, aperture, etc. I own a Nikon D7000. The issue I've found in number of pics I've taken (in P mode) is that whenever the scene ...
4
votes
5answers
6k views

What's the difference between exposure and shutter speed?

Is there a difference between exposure and shutter speed, or are the terms interchangeable? I read that "If you use a quick shutter speed, you can just raise the exposure to compensate." Is this ...
4
votes
4answers
431 views

What is the relationship between ISO, aperture, and shutter speed?

I know digital cameras have ISO options, and that ISO is the camera's sensitivity to light, but if you set higher ISO then you can get a noisy image. I also know there are two other camera options, ...
4
votes
4answers
341 views

When is it realistic to take a non-flash picture of someone outside after sunset?

This is a question from a non-photographer. I'm writing a scene for a stage play. In my scene, there's a celebrity in crisis in a park after sunset and a photographer who'd dearly like to get a ...
4
votes
3answers
545 views

How does software exposure compensation work in RAW files?

When shooting with RAW files, it is possible to tune the exposure and white balance using software, which is not possible when shooting with JPEG. But I have a stupid question: when you are shooting ...
4
votes
4answers
462 views

Are there any situations in which it makes sense to raise the ISO in bright daylight?

Are there any situations in which it makes sense to raise the ISO in bright day light? For example, this pic has been taken in bright day light with ISO 3200, f18, 1/1250: ...
4
votes
3answers
675 views

Why would one recompose after setting exposure?

I am reading Bryan Peterson's book Understanding Exposure. Quoting text from the book: I set up my camera and 75-300mm lens on a tripod. I set my focal length to 130mm and aperture to f/32 and ...
4
votes
4answers
5k views

Why are my Nikon D5100 M Mode (Manual) settings reset for every shot whilst the camera pointing to the same object?

I've just noticed that whilst shooting with my D5100 using M mode settings reset after each shot. Say, the camera is on a tripod pointing to an object. I've balanced out the exposure to a 0, aperture ...
4
votes
4answers
683 views

Why are these light trails large blobs of light instead of nice thin lines?

I'm trying to shoot a traffic light trails with my point & shoot camera (Panasonic Lumix DMC-LZ8). But the oncoming vehicle headlights are appearing as large blobs of light and not exactly thin ...
4
votes
2answers
652 views

Why not expose for a cloudy day as a cloudy day?

We all know how cameras try to meter the scene as if it is 18% gray. That's why we should dial in +1 or even more when shooting on a snowy day and -2 for a night scene. What about a cloudy or ...