Questions tagged [exposure]

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 exposure.

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Can photographers pre-visualize complete camera settings of a scene in their heads?

Can an experienced photographer walking down the street with no equipment visualize exactly what settings would work with a particular lens/body to capture a scene at that moment in time? Similarly ...
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Is over-exposure preferable than under-exposure?

I am learning the world of Photography and always attempt to get the best possible shot but there are times when getting the exposure just right can be tricky depending on the situation. (I can tell ...
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Why are the tops of people's bodies missing from this photo taken with a tablet from a moving car?

My friend recently took a picture with her tablet of two boys riding a bicycle while she was in a moving car. When she viewed the picture, the background was very clear and the bicycle and the lower ...
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Does a lens with a bigger max. aperture focus faster than a lens with a smaller max. aperture?

The assertion by a well known photographer is that the Nikon 400mm f/2.8 set to an aperture of f/5.6 will let in 4 times the light compared to a Nikon 500mm f/5.6 lens set to f/5.6, keeping the ...
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How do different aperture and shutter settings affect a photo with the same overall exposure?

Ok, here's my doubt. Suppose I want to get a certain exposure for an image. Keeping the ISO constant, there are two tentative possibilities here: Put the camera at f 1.4 (say) and at 1/1600 shutter ...
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755 views

Heavy colour saturation on night photos with new lens? Is this normal

I have a Canon 550D and bought a Sigma 17-70mm lens to upgrade from the 18-55mm lens kit. I decided to go out and try the new lens with some night shots. To be honest, the results were bad. I used a ...
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What is the “Sunny 16” rule of thumb?

I've heard of the "Sunny 16" rule. What is it? How, and in what situations, can I use it?
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Why meter off sky, then change aperture and shutter speed?

In section "Night and Low-Light Phtography" that starts on page 128 of Bryan Peterson's "Understanding Exposure" book, he has several examples where he (spot) meters off the sky with a large aperture, ...
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Which setup should I choose for taking pictures of Trick-or-Treaters tonight?

I've dug up my dad's old Pentax K1000 SE, along with his old lenses, and picked up some 400 film. I'm wondering which of these lenses I should go with to get the best shots tonight (outdoors, no flash)...
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What is bracketing?

I have seen this term a lot and I was wondering what, in basic terms, what bracketing/autobracketing is. Also, why would one want to 'bracket'? P.S. - there are other questions asking what DoF and ...
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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 ...
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How can I salvage an HDR image from non-optimal source images?

During a recent wedding, I took a number of shots with my Nikon D90 at different exposures, hoping to merge them into HDR pictures. However, it was done in a hurry, i.e. with no auto-bracketing or ...
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How can I mitigate bright spots in shaded, woodland settings?

I do most of my photography while hiking. I find open woodlands to be a very pretty setting, but have difficulty capturing it. While sunny spots are brighter than shady spots, they don't glare in the ...
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How does TTL flash work in manual exposure mode?

I got the Metz 44 AF-1 flash recently that is TTL capable for my Canon 550D, and have been reading around to get a better understanding of using flash on-camera (Neil Van Niekerk's article on flash ...
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Why don't cameras have metering modes that expose RAW files to the right?

Cameras could do ETTR quicker and more accurately than humans, and without the risk of actually clipping any pixels. The camera could then write a field to the RAW metadata telling the viewer home ...
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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 ...
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When determining exposure, is ISO typically taken into consideration secondary to aperture and shutter speed or is it equally as important?

In other words, do professional photographers typically pick the aperture and shutter speed they want and then after those are picked adjust the ISO until their exposure meter shows the shot as being ...
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What does “long exposure” mean?

Very often, when people are talking about photography, they use the expression "long exposure". Here's a quote from a recent answer: A tripod and long exposure were required for this shot. Where ...
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What to do when you've set the wrong ISO for your film?

I’ve put my Fujifilm Superia X-TRA 400 into my Minolta Hi-Matic 7 and I forgot to change the ISO setting for the new film. It’s set for the last roll at 200. So what setting should I put for a normal ...
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How to choose the correct exposure for flower photography?

I have an old Minolta X-700 with an MC-Rokkor lens (its internal light metering was broken) and I'd like to use it to take photos of flowers. I use Sunny 16 rule, and though it seems that for the ...
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Cutting film in half - what does it do?

I found this article about different types of film. Nicholas Nixon shoots 11×14 Kodak Tri-X and he says this: “Tri-X Professional 320 ISO rating, but I cut it in half because it makes the shadows ...
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What causes this dark halo around the sun?

I took a series of photographs just before sunset, directly into what was a very weak, watery sun - barely made you squint to look at either with the naked eye or through the viewfinder. To the naked ...
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Photographing microfiche readers: Bright light forces camera to darken image

I am a researcher and often have to take photographs of material from microfiche cards. The problem that I have been encountering is that on non-digital readers, there is a bright lamp behind the ...
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Is there a good use for program exposure modes?

The question about how programed exposure modes work made me wonder. Are there situations where a program mode is good for some reason, not just as a convenience or because you don't understand ...
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What are the advantages of additional exposures between outer brackets of an HDR stack?

Firstly, I understand the idea behind HDR photography so I'm not looking for an explanation of HDR. What I'm interested in is the large number of exposures often used to capture a scene with high ...
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Is there a camera which can capture all shades from dark foreground to bright background?

Question: Is there a camera that can capture all the shades of a dark foreground object as well as a bright background? I am trying to take a picture of my black cat against a bright summer sky. My ...
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Qualitywise, is there any downside to overexposing an image (within the dynamic range of the camera)?

If i underexpose an image and have to crank up the exposure in post, this will also amplify the noise, resulting in a lower quality image. In this case, it would've been better to expose correctly ...
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Why does holding the focus and recomposing also affect the brightness of my photo?

Let's say I try to take a picture of the following scene: a nice, blue river on the bottom and a solid, grey building in the middle. It is a sunny day and I am in a large distance, so both "objects" ...
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What Is The Scale Of The Y Axis of The Histogram in Lightroom / ACR?

I understand the concept of histograms. I understand that the x-axis represents the luminosity range from min to max for either all channels or RGB individually, and I understand that the y-axis ...
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How do I correctly expose a 3200 ISO film roll on a camera that allows 1600 ISO?

I just bought a 3200 ISO film roll (ILFORD DELTA 3200), and my camera (Chinon Cm-5) allows to set films up to 1600 ISO. What can I do to expose correctly? I thought of metering at 1600 and when it's ...
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How do I get proper exposure when photographing white subjects?

When spot metering white subjects (e.g. snow, white birds), do I adjust the EV on my camera + or - to get a proper exposure? I'm getting conflicting info.
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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 ...
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How to avoid blown colours in one channel?

I've recently bought a Canon 700D and am still very new to it, although I have a good reasonably good understanding of photography basics (aperture, shutter speed, ISO, DOF, focal length etc.) I ...
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558 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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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Editing photos for this “milky” and “twinkly,” vivid but nostalgic effect?

I can't really find questions about this style of photography I see a lot, anywhere on the Internet, but I think it's very beautiful and enchanting. It seems both vivid and faded at the same time (at ...
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Metering mode in panasonic Fz35

I am new to photography, recently I bought a new camera which is Panasonic Fz35 which has lots of nice features in it. However while browsing through the settings mode, I found an option for Metering ...
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Auto button in Lightroom - can I adjust its default behaviour?

I am wondering if there is a way to change the default 'auto' adjustment button behaviour in Lightroom. When I switch to Develop view, on an imported image, I often click the Auto adjustment button ...
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Visible discrete gradient transitions of glow on photos with long exposure

On my new Nikon D7100, when I set a longer exposure, instead of smooth transition, I can see the transition steps. It can bee seen on attached photo (the rough gradient in the sky) Is it a problem of ...
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Canon 70D often overexposing or underexposing shots

It really started to bother me, I don't know what it is, is it difficult lighting conditions for the camera is it my settings, but I very often get incorrectly exposed pictures with my 70D. Here are ...
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What ISO do I shoot Ilford Delta 3200 in?

I need to make pictures in crummy lighting conditions (inside a convention center) without much ability for external light apart from my camera flash. I ordered some Ilford Delta 3200 Black & ...
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How to achieve good scenic photos without HDR?

I've always had a problem getting exposure right with shots of the outdoors. I always seem to need to do manipulation which ends up in noisy photos. I know HDR would sort it out, but I'm using a ...
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How to get exposure right in night photography?

In this link there are some wonderful night time scenes (#4,6,7,9,10,11,13). I'm wondering how the photographer got the exposure right. In my experience my camera metering will overexpose everything ...
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Why did this image turn out darker?

In this tutorial on creating christmas themed images the author describes how she adjusted her exposure settings to add more weight to the christmas lights She says she went from f/2.8 and 1/3 of a ...
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How to judge the difference between the real photo and what you see in LCD? [duplicate]

I'm interested in night sky photography. I most of the time travel for taking photos. But I got a terrible problem. At dark nights I have to decrease the LCD's brightness to not bother my eyes. When I ...
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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 ...

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