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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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1k views

D800 Previews Much Brighter in Camera, Very Dark When Rendered

I've been shooting with the D800 for about 6 months now, and I've noticed that the in-camera previews appear much brighter and more properly exposed. But when I load the RAW images into either ...
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3answers
668 views

Double exposures straight to a memory card?

I'm looking to work out why some photos I have taken with my phone have strange images of a girl in them, when she clearly shouldnt be there. Can a photo taken with a normal camera phone double expose ...
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1answer
773 views

Creating Proper Exposure with a Pentax PZ10

Not long ago, my Pentax K1000 was damaged and I upgraded to the Pentax PZ10 (both film cameras). I feel lost with trying to get the right exposure on the PZ10; with the K1000 I used a third-party ...
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2answers
569 views

How to relate LED Lumens to Lux at a given distance?

I'm trying to design an LED light, but I'm not sure how many LED's I need for a given light level. Specifically, the Luxeon LXR7-RW57 1000 lumen white LED (data sheet) Q: How many lux should I see ...
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3answers
80 views

Photographing luminous clothing

I was wondering how you take a photograph of luminous clothing. No reflective strips on it or anything. Just can't seem to get the colour real. It comes out washed out looking and not bright like it ...
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1answer
1k views

How to set continuous shooting on Canon 60D while using Canon remote RC-6?

I am interested in photographing some star trails and have read many articles that say that I should use continuous shooting mode instead of Bulb mode. I tried this last night with my RC-6 Canon ...
3
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1answer
114 views

What are the effects of turning negative images to positives?

I was using my DSLR (D5200) to digitize some old negatives. Many articles stackoverflow helped with ideas. SO I have a backlit surface on which I place the negative & then take a closeup shot of ...
3
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1answer
138 views

What is Effective Aperture?

What is Effective Aperture? And how it can affect my exposure? Also how does it relate to magnification? A question that talks about effective aperture but without details
3
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1answer
491 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 ...
3
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1answer
515 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 ...
3
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1answer
632 views

Ways in order to achieve dramatic lighting styles?

My question is more specific to the situation I am going to be shooting [with the subject being a person laying down in a hospital bed] The photo will be taken from the ceiling above the bed and ...
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1answer
1k views

Equalize exposure levels of a set of images in a stitched panorama

I've taken a set of pictures for a panorama. Unfortunately, I've forgotten to set the flash to manual exposure, hence I ended up with uneven exposure levels in the images. When I stitch them ...
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1answer
87 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 ...
3
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1answer
103 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
712 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
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4answers
509 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 ...
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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 ...
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2answers
601 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 ...
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4answers
228 views

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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4answers
322 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 ...
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4answers
150 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 ...
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2answers
366 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 ...
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4answers
621 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?
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2answers
234 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 ...
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3answers
215 views

If TTL only preflashes once, how does it get correct exposure immediately after?

If I understood TTL correctly, say you are in M mode with a camera and you have intentionally underexposed. The flash in TTL mode theoretically would try to add enough light to correctly expose the ...
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2answers
788 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 ...
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2answers
174 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 ...
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3answers
121 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 ...
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3answers
260 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 ...
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4answers
718 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 ...
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3answers
1k 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- ...
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2answers
363 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 ...
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2answers
83 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 ...
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1answer
1k 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?
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2answers
711 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. ...
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2answers
885 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.
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2answers
798 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?
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2answers
102 views

Relevance of absolute light power in studio object photography?

While setting up a photo studio for product photography, I often read advice that suggests that one needs extremely strong light sources (1–10 kw total) if shooting without flashlights. I fully ...
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2answers
141 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 ...
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2answers
123 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 ...
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1answer
193 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 ...
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1answer
524 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
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2answers
146 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 ...
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1answer
148 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 ...
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1answer
381 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 ...
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1answer
440 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
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1answer
69 views

Canon 60D - exposure compensation with auto ISO in Manual mode [duplicate]

I'm sure someone will be able to answer this conclusively fairly quickly, but as per the thread title, is there a way to set exposure compensation when using M mode but with the ISO set to automatic? ...
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1answer
227 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 ...
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1answer
111 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 ...
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0answers
56 views

Uneven exposure with Sony a35 - one side of image much lighter than the other

My camera Sony a35 all of a sudden started taking photos with one side lighter then the other - almost white. And it's worse with outdoor settings. I have tried cleaning the lens filter and that ...