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 ...
9
votes
3answers
218 views
How sharp of an image should I expect at night?
I'm a beginner with my first camera (sony nex6 mirrorless). I was trying my first few night shots Using the kit lens but I wasn't able to find a way to take sharp images. I've done the following:
...
10
votes
6answers
487 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 ...
2
votes
1answer
69 views
Synchronization problems with Rekam NEO 200 and Canon 600D
I've recently got two Rekam NEO 200 lamps with synchronization cable. To connect them to my canon 600D i've bougth an adapter.
The flash seems to sync correctly when setting exposition to values ...
1
vote
1answer
160 views
Why would I use FEB (Flash Exposure Bracketing)?
In what situation would using FEB (Flash Exposure Bracketing) be a good idea? Exposure bracketing can be blended together with HDR, but why would I use FEB?
13
votes
5answers
854 views
If shooting RAW, is the white balance selected in camera irrelevant for exposure?
I have read the existing question - Does the camera white balance setting affect the raw image at all?
After reading the above post, I am still not clear on the part around exposure. Is it possible ...
2
votes
2answers
143 views
What zone does lith film cutoff occur in?
With lith film, exposure accuracy is said to be of great concern - basically, it's a matter of black and white. But when metering, what zone does the cutoff between black and white happen in - is it ...
2
votes
2answers
241 views
How Avoid Vignetting using a variable ND filter
My camera is Nikon D700
Lens 28-300mm
Lens 24-70mm
I have a Variable ND filter 77mm size
How do I avoid vignetting around the edges of the filter?
thank you.
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 ...
3
votes
1answer
327 views
How does Photoshop/Lightroom process exposure?
Ok, so after reading this it got me thinking... After back and forth of whether ISO increases/decreases noise, does it actually do just that? As explained, the ISO in the camera turns up the amplitude ...
7
votes
5answers
403 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 ...
6
votes
4answers
261 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 ...
4
votes
5answers
670 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 ...
6
votes
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 ...
2
votes
3answers
594 views
What metering mode should one use with autoexposure (AE) lock on the Nikon D700?
I will be visiting Morocco in week's time.
I usually use matrix metering when taking photographs.
However I have read that using the autoexposure (AE) Lock on the Nikon D700 one should use center- ...
2
votes
2answers
263 views
Can the camera select wrong exposure just because of color?
I took two pictures of two different flowers with portrait setting. One came perfectly exposed with dark background, the other seems over exposed with brighter background. I tried it again and the ...
3
votes
2answers
154 views
Is the dynamic range affected by exposure time?
For a given scene, if I take 2 similar shots:
short exposure time (maybe using higher aperture, higher ISO...)
long exposure time (lower aperture or ISO)
The goal is to have the shots with the ...
3
votes
3answers
508 views
Night-time football game under field lights
I am shooting a little league football game at night under the field lights for the first time amd I have a few questions to ask.
I will be using the Canon EOS 60D camera with a Canon 24-70mm 1:2.8 L ...
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 ...
11
votes
3answers
267 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 ...
3
votes
1answer
365 views
Can a consumer-grade camera take good aurora pictures?
It's generally hard to take clear pictures of auroras because they are fairly dim and move around. To get enough light for a good picture, you need a long exposure. But then your picture will be ...
4
votes
5answers
595 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 ...
3
votes
3answers
893 views
Long exposures without turning night into day
When taking Night Photography you will use long exposures. Sometimes these exposures can be very long. My question is this:
How can I take long exposures without turning a night scene into a scene ...
1
vote
1answer
506 views
How can I take long exposure photos with a webcam?
I have a very simple webcam made by A4tech. It already has an exposure function (in its settings) and it's good in low light.
I want to be able to take even longer exposures. I have found this but ...
1
vote
1answer
146 views
Skin tones become yellower/ oranger when flash is on
When I take pictures of people, the yellow and red tones seem to be enhanced and the result is a more jaundiced complexion in best case scenario and orange and a bit shiny if their skin is a bit oily. ...
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 ...
3
votes
1answer
228 views
How does the sensitivity of camera sensor behaves with the infrared filters?
I am puzzled about the behavior of camera sensor to the infrared spectrum.
I have heard that the you must remove the internal infrared filter to capture infrared pictures. So, I removed it and used ...
4
votes
2answers
668 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 ...
5
votes
1answer
175 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 ...
2
votes
2answers
152 views
how do I long expose in harsh light for a lake view?
I have this problem of long exposure in harsh light. This in a lake side where I wanted to get that silky movement of water with a stone in foreground. However, since the daylight was harsh my images ...
6
votes
4answers
411 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 ...
1
vote
2answers
315 views
Modify exposure of a specific part of an image using rawtherapee or gimp (ufraw)
Is there a way to modify the exposure on a specific part of an image using rawtherapee, Gimp's ufraw, or any other free/open source tool?
4
votes
2answers
481 views
How to get a smooth gradient on sky?
I wanted to capture this beautiful dawn. The colors came well but the gradient is banded, if you see closely.
I know we can post process the image to smooth it out, but I would like to directly ...
0
votes
0answers
134 views
Funny hair exposure problem [closed]
I have a nikon d300s and I have just started exploring shooting in manual mode. I always get a weird exposure in hair no mater what kind of light I shoot in. It kind of gives the hair a dashy effect. ...
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 ...
4
votes
2answers
616 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 ...
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 ...
2
votes
4answers
572 views
How do I prevent the background from going dark when using the flash with a subject?
This is with Flash, short shutter exposure time, and zoomed in
This is without Flash but with long shutter exposure time
when using the Flash the background tends to get dark and the subject ...
19
votes
2answers
3k views
What is the Black Card Technique?
I have found interested comments on 500px: Non-HDR-processed / Non-GND/ND-filtered / non-blended● Black Card Technique and group on Flickr.
Could somebody explain how to and cons and pros of this ...
3
votes
2answers
302 views
Can a new focusing screen affect exposure metering?
After i replaced original focusing screen with a split one, it seems that every picture i take is overexposed now. Can it affect on exposure? Or i damaged something while replacing it? I own Nikon ...
5
votes
3answers
789 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
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 ...
11
votes
1answer
496 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?
1
vote
3answers
323 views
What techniques are there to get focus and/or lock exposure other than center, half-press, and recompose?
The way I shoot is this:
turn the camera so that the subject is in the middle of the
viewfinder, where my center point is,
press the shutter half way, the camera now focuses the lens on the subject ...
3
votes
1answer
255 views
How do you photograph sand dunes?
In 2010 I was lucky enough to visit Death Valley. While we were there we went to the sand dunes.
I took this shot
Its not how I remembered the scene, It seems as if a lot of the detail has been ...
3
votes
2answers
342 views
Why does the exposure vary in these Nikon flash photos?
The following 4 photos were all taken with a Nikon D300 at 1/250s, f/5.3, ISO-400, in shutter priority mode, with the on-camera pop-up flash. The only difference between them is the exposure bias, ...
11
votes
2answers
1k views
What is T-number / T-stop?
Usually, when discussing aperture of a lens, F-stop and F-number are used for quantifying. But some photographers, and especially videographers, also mention T-stop. The concept and numbering used ...
-2
votes
1answer
406 views
How does aperture affect exposure?
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.
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:
...
18
votes
3answers
707 views
Why does a 15-second exposure on my camera actually last 16 seconds?
I was doing a test and wanted the shutter to stay open for 15 seconds -- no problem, I have a 15-second exposure setting in my camera. It seemed to stay open for about an extra second, though, so I ...
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 ...
