Time to be with your loved ones

Time to be with loved ones

by sat

submit your photo


Hall of Fame
View past winners from this year

Please participate in Meta
and help us grow.

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 ...

learn more… | top users | synonyms

3
votes
1answer
102 views

Why do some polarizers transmit more light then others?

How do filters such as the Singh-Ray LB Polarizer transmit more light then other circular polarizers? I am particularly interested in this technology because they claim to only add 1-1/3 stop to the ...
3
votes
2answers
589 views

What advice would you give for taking photos on a boat cruise at night?

Tomorrow I will be going on a boat cruise in the evening in London. I will no doubt be looking for photo opportunities on the boat, both of people, as well as the landmarks/surroundings. I'm pretty ...
2
votes
4answers
500 views

Consistent image exposure using Canon AV (aperture priority) setting for artwork

Sorry this isn't a clearcut question. I've been setting up to shoot artwork. I'm using the AV setting on my cannon which allows me to set a higher aperture (5.6) and set the ISO (100). The problem ...
2
votes
4answers
11k views

How do I change the exposure setting in manual mode on a Canon EOS 550D?

I have recently bought a Canon EOS 550D. In the Manual Mode, I am unable to change the exposure level. What am I missing here? I am sure there must be a way to change it.
2
votes
4answers
1k 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 ...
2
votes
2answers
472 views

Why does EV increase as ISO increases?

From what I understand, the lower the EV value, the more exposed (bright) the image is. EV decreases as aperture decreases. More light gets in with lower apertures. EV decreases as shutter speed ...
2
votes
4answers
292 views

Why does my camera's meter suggest the same exposure time for lenses with different apertures?

On the same camera body (Canon 1Ds MkII) at the same ISO setting (400) and with no filters attached, two different lenses give the same exposure time (0.4s) at very different apertures. The lenses and ...
2
votes
4answers
147 views

Is this statement By Jim Zuckerman incorrect?

"For the exposure of the foreground, though, the lighting came from the flash only. Therefore, changing the shutter speed didn’t affect the exposure of the subject, since the speed of light is faster ...
2
votes
2answers
295 views

How does 18% exposure algorithm work?

They all say and teach the rule that camera exposes to 18% grey. Then they go and show an example of shooting a white board or black board and they both show as a grey board in the camera. Great, but ...
2
votes
4answers
482 views

What is “Dragging the Shutter”?

Ive heard this term of "dragging the shutter" and was wondering what it means and why would i use it Can anyone answer this?
2
votes
2answers
203 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 ...
2
votes
2answers
199 views

How to do a long exposure with a Nikon D60

I've searched google high and low for this and all I get are results trying to sell me camera equipment. I have a Nikon D60 without the ML-L3 remote control, well I have one but the battery has run ...
2
votes
2answers
169 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
3answers
202 views

How do I know how much light will be needed for a given film speed, shutter speed, and aperture?

For a given film type, shutter speed and aperture, how do I calculate the light needed to get a good exposure? For example, if I use a f/8 aperture, an exposure time of 100 ms and a ISO 800-film ...
2
votes
4answers
502 views

What is the best order to set exposure parameters (ISO, aperture, shutter)? [duplicate]

Let's say that you're in a very controlled environment, there is no hurry to get the shot, and you're shooting manual. In order to correctly expose the photo, what order should you alter the ISO (if ...
2
votes
3answers
969 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
341 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 ...
2
votes
3answers
89 views

Does a good light meter eliminate the need for exposure compensation?

I am new to photography but have a fairly good understanding of exposure. I know the camera's light meters are easily fooled and hence the need for exposure compensation where a photographer have ...
2
votes
2answers
77 views

When should I use different methods of increasing exposure?

I am trying to understand something that is really confusing me. If I want to make a captured image brighter I can do this in many ways. I can Leave the shutter open for longer Make the aperture ...
2
votes
1answer
872 views

What is the shutter speed, aperture, and focal length of the Kodak Funsaver disposable camera?

I'm looking at the Kodak FUNSAVER disposable camera. Does anyone know what the shutter speed, aperture, and focal length of this camera are? Are they fixed, or do they adjust automatically?
2
votes
2answers
422 views

How to picture thunder when storm is coming [duplicate]

Possible Duplicate: What technique and camera settings should I use to capture lightning strikes? My home town is very lack of thunders, but when time comes, I should be prepared to shoot. ...
2
votes
2answers
665 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?
2
votes
2answers
113 views

Why is my camera metering indoor scenes as darker than I expect it would?

I am shooting in natural light, with my subject facing a full floor-to-ceiling south facing window. You would think my meter would allow ISO between 200-400 in bright light, but I was lucky to get it ...
2
votes
2answers
87 views

Photographing suits and other dark woolens?

I shoot photos for a personal men's fashion blog. Which means frequently photographing dark navy and grey suits with white shirts. I'm having trouble exposing the photo so that the details of the ...
2
votes
1answer
166 views

Why do all of these film photos look off color?

My friend is interested in starting up photography and asked to borrow one of my film cameras (my Minolta X-570) as a start. She just developed her first roll, and while a few photos look okay/correct ...
2
votes
2answers
634 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.
2
votes
1answer
447 views

What is the reason for underexposure in my film photographs?

Thanks to all the quality answers I got here that helped me to buy a film camera. I got my first roll of film processed and printed. The print results are not as pleasing as looking at the slides ...
2
votes
2answers
143 views

Is my Rebel broken?

Today I got a Canon S90 and took a few shots in the Auto mode. The images are perfectly exposed and the well balanced color in both outdoor shots and indoor shots under fluorescent or incandescent ...
2
votes
1answer
119 views

What flash guide number do I need to underexpose a “sunny” background?

I'm familiar with the maths behind flash usage (guide numbers, etc.). Here's a more practical question that doesn't yet seem to have an answer on photo.se: Consider a subject, outdoors, on a regular ...
2
votes
1answer
288 views

What is the relationship between film speed and shutter speed?

I'm doing my own research on film photography and planning to do it as a hobby. One question I keep is "what is the relationship between film speed and shutter speed?" Are the two completely ...
2
votes
1answer
51 views

How to set shutter time on an Android phone?

I am trying to make a LED Pen as shown here. For this I require a camera that allows exposure time of ~20s. I don't own a SLR/DSLR/Digital camera. I have a 5MP camera on my phone. I wanted to ask if ...
2
votes
1answer
422 views

How does Sunset Mode affect exposure on Canon A800?

I was puzzled recently when I did some test shots with my Canon A800 by shooting the same (landscape) scene with and without full optical zoom and with the camera program set to SCN - Sunset. (Sunset ...
2
votes
1answer
205 views

Why is my Canon EOS 40D getting wrong exposure after focusing screen change?

I have just changed the focusing screen; something I have done now a few times. Now "normal" metering does not occur in auto or manual focus. In live view all ok. Using the eyepiece produces exposure ...
2
votes
1answer
101 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 ...
2
votes
1answer
52 views

what is the response curve?

I was reading in a book about the dynamic range and several times I find the expression "responsive curve" or "image's responsive curve"? What does the responsive curve represent? What is the ...
2
votes
2answers
169 views

How can I measure luminance values from different cameras?

Calculating EV and then Lx is pretty simple. The problem starts when trying to calculate these by using EXIF data that come from different cameras. I tried capturing a static object in the exact ...
1
vote
3answers
396 views

What filter should I use to avoid overly-whitened daylight images?

What filter should I use to avoid whitened images (blown highlights) caused by intense daylight? At the moment I am only using an UV Filter, but it doesn't solve the whole problem. I am a newbie in ...
1
vote
4answers
312 views

Why doesn't my camera capture a dark picture when it looks dark to the human eye?

I tried searching for this, but found nothing on this topic: is there a way to set the camera to get images in around the brightness a human eye sees? For example, in bright daylight, I would set it ...
1
vote
3answers
416 views

How does this TLR camera expose properly?

I found a DIY TLR camera kit that lets you build the camera from parts, then use it to take photos. What I don't understand, is that the specs list: 1/150s shutter speed; f/11 aperture From that ...
1
vote
5answers
3k views

Differences between DLSR and SLT?

I already have a Sony SLT camera but I still wanted to understand the differences between DSLR and SLT. It's hard for me to compare because I don't have or ever owned a DSLR so the behaviour is very ...
1
vote
2answers
1k views

Why is Auto Exposure on my Nikon D300s Overexposing?

My 300s appears to be overexposing - especially in the image playback - is there a way to calibrate or check the exposure measurement? Have been compensating exposure with some success.
1
vote
1answer
112 views

Do sensors absorb different spectrum of light at different rate, making longer exposures better for blue skies?

I've found one suggestion about taking photo of sky: The sky becomes white in ur photos unlike others who retain blue color?? - Stop down the aperture to f8 or more, decrease ISO to 100 and ...
1
vote
5answers
364 views

Why do RAW files only show you 8 bit of the 14bit recorded?

Following up from a previous related raw file latitude question. Why do RAW files record in 14 bit but only show 8 bit of data? The remaining data is hidden away to the right or left of the histogram. ...
1
vote
3answers
323 views

What's the difference between a closed and open aperture diaphragm for night street photos?

I'm capturing a picture during night and to a street with a lot of cars running over the street. What happens (in general, from a theoretical point of view) if I shoot the same photo under the ...
1
vote
2answers
514 views

When to use exposure lock with spot metering and when to use exposure compensation?

I was taking a snap on a sunny day, and the subject was in front of light source and subject was shadowed out(or blackened) In this case is it better to use partial/spot metering mode (zoom in to face ...
1
vote
1answer
3k views

What causes outdoor photos to turn out bright white when taken with a digital camera?

I set my Canon Powershot A460 to automatic mode and took photographs outdoors. When I see the to-be-photographed area on the LCD, it appears normal; but when I take a picture, the photo turns out ...
1
vote
4answers
1k views

What could cause severe under-exposure when using a Canon 5D Mark III with Speedlite 600EX-RT with Evaluative E-TTL2 metering?

I recently purchased a Speedlite 600EX-RT for use with my 5D Mark III. I'm shooting with a 17-40 f4/L lens. Particularly when using the flash in the standard forward position, I get extremely severe ...
1
vote
3answers
430 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 ...
1
vote
2answers
123 views

Why will low-end Nikons not meter with old lenses?

To quote the source, the following sites claim that the Nikons: D90, D5200, D3200 and so on will not meter with AI lenses. http://www.aiconversions.com/compatibilitytable.htm ...
1
vote
3answers
104 views

How does time of exposure relate to aperture? [duplicate]

I was trying to derive the relation between the aperture and time of exposure. I'm taking two apertures f/2 and f/4. From the formula A α 1/√t I got, f/2 α 1/√t1 -> A and f/4 α ...