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 ...
7
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2answers
215 views
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 ...
7
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2answers
494 views
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 ...
6
votes
5answers
319 views
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 ...
6
votes
4answers
3k views
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 ...
6
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4answers
347 views
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 ...
6
votes
4answers
410 views
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 ...
6
votes
4answers
460 views
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 ...
6
votes
3answers
236 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
5answers
422 views
Is it usual that a narrow aperture gives a darker picture in aperture priority mode?
I have a Nikon D60 camera here with a Nikkor 35 mm 1:1.8G lens. I don't have any experience with any other digital SLR, so excuse the beginner question.
When using aperture priority mode, a narrower ...
6
votes
4answers
260 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
3answers
860 views
How to get meter reading for a DSLR if not from 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
253 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
2answers
578 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 ...
6
votes
4answers
6k 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
105 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
4answers
2k 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
6answers
345 views
A Good “Flexible” Default Setting For Shooting Highly Dynamic Subjects
I know this is quite vague and that some of you might say the setting depends on how much lighting the place has. However, I want to know what "default" settings I can use for shooting pageants, float ...
5
votes
3answers
788 views
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 ...
5
votes
3answers
180 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
6k 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
267 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 ...
5
votes
4answers
502 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
1answer
1k views
How to calculate Lux from EV?
Instead of looking up a chart, how can I calculate Lux from EV? Thanks!
5
votes
1answer
174 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
386 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
87 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
3answers
3k views
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 ...
5
votes
1answer
110 views
How to deal with large exposure shifts during time lapse?
First - I've 30 yrs shooting experience. Not a novice.
But, total Newbie to Time-lapse. Just did my first couple of tests yesterday. My wife was shopping - had to occupy myself.... I kept them short ...
5
votes
2answers
213 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
0answers
99 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
5answers
667 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
3answers
231 views
Why is my camera so forgiving for overblown exposure?
I've found that my camera (Sony A99) is very forgiving in terms of overexposure when shooting in RAW. By that I mean, I can overexposure by a stop or so and when I get home for the post processing I ...
4
votes
4answers
252 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
4answers
301 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
561 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
5answers
594 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 ...
4
votes
4answers
472 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?
4
votes
2answers
714 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 ...
4
votes
3answers
406 views
Why are there multiple contradictory ways to control flash ratio?
I am reading the following introduction to flash photography:
http://www.cambridgeincolour.com/tutorials/camera-flash-2.htm
In this article, I came across two seemingly contradictory statements:
...
4
votes
5answers
2k views
How do I check the exposure meter reading on a DSLR?
I'm a beginner, and I have a Nikon D5100. Many times I come across the suggestion to "Check the meter reading for exposure."
Where can I find this reading and how do I read it?
4
votes
3answers
992 views
Is shooting multiple exposures the best way to do night portraits with the E-PL1?
I recently had the experience where I was attempting to get a night portrait of someone but still maintain some of the background. For example, getting an image of someone on top of Rockefeller ...
4
votes
2answers
300 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 ...
4
votes
4answers
1k views
Why does my Canon 60D sometimes lengthen exposure when using the flash?
In low light conditions, my first shot will often be handheld with no flash. If there's not enough light however, the shutter speed can be too slow and I'm not steady enough for a crisp image - so ...
4
votes
2answers
95 views
Does a flash's TTL automatically adjust as I change its location?
I just bought a radio trigger for my flash. I was just wondering if I understood TTL correctly, as I move the flash around and changes the distance does TTL automatically try to compensate (assuming ...
4
votes
2answers
614 views
How to use built-in flash with off-camera 430ex ii on my Canon 600D
I have a 430EX ii speedlite which is controlled by the built-in transmitter in my 600D. I want to use the built-in flash as a fill light while using the off-camera speedlite as a key light. How can I ...
4
votes
2answers
70 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 ...
4
votes
2answers
666 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 ...
4
votes
2answers
1k 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 ...
4
votes
2answers
229 views
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 ...
4
votes
1answer
154 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, ...
