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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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0answers
30 views

Is the Live View ISO setting only effecive for capturing a picture?

I put the Live View on tripod mode and in Live View by pressing the OK button, I can change the exposure value. But obviously in different light intensities, the EV changes automatically. I have the ...
3
votes
3answers
82 views

Is TTL flash really useful when using off-camera flash?

I have a Canon 700d and a 430EXIII flash. Recently I have been experimenting with off-camera flash. I was really surprised to see e-ttl ii available even when using off-camera flash (via the pop-up ...
2
votes
0answers
44 views

Inaccurate Exposure Indicator

I own two Nikon D7100's, and right now the exposure indicators are 'off' for both of them. They display a level of exposure, but it's not accurate. For instance, shooting in manual, with a 18-105mm DX ...
0
votes
3answers
69 views

How can I automatically get a (approximate) Lux value from overexposed and underexposed pictures?

As you will soon understand, I am not a photographer. For research in a completely different field, I am interested in estimating, even with a large approximation, the brightness of the environment in ...
1
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1answer
62 views

Do I have to be in focus to get the exposure right?

One technique I have learned recently to read the exposure correctly is that they first go very close to the subject's face to fill the frame mostly with her face, then they set the exposure. Then ...
0
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3answers
52 views

Is there a difference in image when using a two different combinations of exposure time and diaphragm? [duplicate]

My camera, aimed at a motionless object, is mounted on a tripod. Do I get a different image by changing exposure time and the diaphragm in such a way that the total amount of light coming in stays the ...
3
votes
4answers
295 views

What's the cost of adjusting exposure of a RAW picture in post-process?

I wonder that if I increase the exposure of a RAW in some software, say, Lightroom, what do I lose in the image. I know that this is related to how is increase of exposure achieved, here in a few ...
0
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2answers
59 views

How much light do I need for my RX10-II at 1000 fps?

I know the video mode is taking a frame "approximately" 1/1000s long, the aperture opens up to f/2.8, and the Auto ISO will select within the camera's range, 64-12800, so how much light (in the ...
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4answers
98 views

Can cameras set exposure in more precise increments than third stops in automatic exposure mode?

If I shoot in manual I set the exposure to the nearest 1/3 stop. If I use one of the automatic modes does the camera do the same thing or can it set the dependent variable to a resolution finer than ...
1
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1answer
50 views

How do I develop a 400 ASA B&W film that was exposed at 200 ASA?

I've accidentally exposed two 400 ASA B&W films at 200 ASA. One I developed like a 400 and the negative has come out very under exposed. Any advice on how I can salvage the other one? Thanks
0
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2answers
75 views

Higher ISO or negative EV to capture action during wild life shooting at low light?

Early morning light..low contrast scene..hand held 7D-II with 300 IS II f4 lens. A big dark cat is climbing down a tree super fast. I had increased EV by 1/3 and had to jump up ISO to 5000 to get a ...
0
votes
1answer
61 views

How can I maximizing dynamic range without postprocessing?

How can I maximize the amount of detail captured in both dark and light objects in the same photo? I don't have the option of post-processing, so "traditional" HDR is not possible. If I reduce ...
7
votes
4answers
310 views

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" ...
1
vote
3answers
74 views

When to use exposure delay?

I recently found an option "Exposure delay" to minimize vibration. But is it necessary to use when you have VR on the lens? And does it do anything "extra/meaningful" by using both the VR and Exposure ...
2
votes
2answers
86 views

What is the right way to blend multiple exposure real estate images?

I have stacked 3 exposures of the same shot in Photoshop to fuse it manually, so that I can make a better HDR image of the scene. But I am not quite sure whether I am following the right method for ...
5
votes
2answers
236 views

What's the difference between “exposure level indicator” and “exposure setting meter” in the Canon EOS 1DX Mark II viewfinder?

I have been looking at the manual for the latest Canon 1DX Mark II camera. I am confused about one aspect of the viewfinder. On right side of the viewfinder is the Exposure level ...
3
votes
3answers
128 views

Why does it look like nothing is on my developed film?

i've recently bought Canon AL-1 with macro lens 35-70. I used some cheap kodak film, with ISO 400. Yesterday I went to some photography studio so they would scan my 35mm film. But when I got it back ...
2
votes
1answer
78 views

Tips for proper exposure using center-weighted metering

I have a Nikon FM3a, which only has center-weighted metering. I know the zone system, and I know how to use a spot meter, but I am not sure how to use the center-weighted meter. It's easy to use a ...
0
votes
1answer
116 views

Does Av mode apply any in-camera software push-pull (Canon 6D)?

I test-shot frames in Manual VS Av mode with identical aperture/shutter speed/ISO, settings and lighting, and I noticed that some frames in Av are sometimes over or underexposed compared to those in ...
0
votes
4answers
175 views

Why doesn't the f-stop on my D7100 change when I hold +/- and change the dial in manual mode?

On my Nikon D7100, the f/stop will not go down from 14 when I hold down the +/- button and turn dial. All I get is a little number below but the photos do not change exposure when I change this ...
1
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1answer
85 views

If i use ISO 1600 to photograph stars will image stacking help reduce noise but also add more detail?

I would like to take better photos of the stars, especially the milky way, but my highest ISO setting is 1600. I have now learnt that image stacking can help reduce noise when taken with the same ...
1
vote
1answer
95 views

When stacking images to remove noise in astrophotography, should the exposure be the same in each?

I am trying to get to grips with astrophotography and have read about image stacking to help reduce noise. I am a little confused about whether the images to be stacked are all taken at the same ...
0
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0answers
21 views

Efficiency of DSLR's CMOS at constant ISO [duplicate]

Does the efficiency of CMOS change if one keeps the ISO constant but changes the exposure time?
8
votes
1answer
154 views

NIkon D5300 Flash problem plus getting different images with the same settings

I have two problems with my Nikon D5300 recently that are driving me crazy. The first problem is when I take pictures, focusing on the same object, I keep getting different images: one is too bright, ...
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6answers
771 views

How do you take a picture without focusing?

So I've just started getting into photography. I'm currently experimenting with taking long exposure photos at night, but my house doesn't have the ideal surroundings for a good pic. Is there any way ...
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0answers
91 views

Normalize the brightness of images with different exposure times using EXIF data

I shot a bunch of images in a hurry today, having forgotten to switch the camera to M mode. So my photos ended up having different exposure times, and now I must normalize them to make them look as if ...
1
vote
3answers
96 views

Is it possible to improve the quality of images I grab at 90fps?

I am using "Raspicam" (https://www.raspberrypi.org/documentation/hardware/camera.md) for a robotics project, where I need to get as many images as possible in 1 seconds. Camera works perfectly fine ...
4
votes
2answers
85 views

What factors affect the dynamic range of a sensor?

I understand what dynamic range is, but I'm interested in what it is that allows different sensors to have increased dynamic range over other sensors. For example, the classic explanation of a sensor ...
-2
votes
3answers
89 views

Nikon D3S - Controlling CMOS image acquisition time [closed]

Is there a way to achieve the following sequence? open the shutter, wait until it is fully settled in open position, clear the CMOS sensor (remove accumulated charge), start collecting photons, ...
7
votes
2answers
372 views

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 ...
1
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1answer
78 views

Can't duplicate Auto results in M, Tv, and Av Canon 70D

I've been a an amateur photographer for several years. I understand the technical side and enjoy explaining it to others. But...with my 70d, which I've owned for over a year, when I take an indoor ...
0
votes
2answers
78 views

When to use the LV formula?

EV = log2(f^2/T) LV = EV + log2(ISO/100) Question is to those that this is already clear. It is not a math question, it is a photography question about using Light Value. My puzzlement is ...
4
votes
3answers
550 views

How does software exposure compensation work in RAW files?

When shooting with RAW files, it is possible to tune the exposure and white balance using software, which is not possible when shooting with JPEG. But I have a stupid question: when you are shooting ...
2
votes
1answer
78 views

How do I get actual (vs. reported) Bulb mode exposure times on my Canon 1200D?

When shooting in Bulb mode using my Canon 1200D, I've noticed that the metadata appears to only contain 1" increments for the exposure time. For example, regardless of whether I hold the exposure ...
1
vote
2answers
187 views

What could cause very underexposed photos in daylight?

I just recently started toying with the manual mode on my Canon 70D. Everything was working fine for a few shots, then all of a sudden my newer shots all appear darker under the same settings. The ...
2
votes
4answers
487 views

Does a full frame lens require more light on a crop body?

When using a full frame lens on a crop body, does the lens require more light? If I use an f/2.8 full frame lens on a crop body, does it become an f/4.2 (*1.5)?
3
votes
1answer
54 views

When to overexpose, underexpose, use standard and/or pushed development time in film?

I've some confusion when metering & developing for film. I've learned that it is preferred to overexpose a negative film, e.g. ISO400 film and use as ISO200 film, and develop using standard ...
12
votes
6answers
2k views

Could a “universal exposure” setting be practically possible?

Not sure how uneducated this question is, but I'm interested in learning, so thanks in advance for your indulgence. Film physically changes over the period of time it's exposed. A digital sensor, ...
1
vote
2answers
99 views

How do I get correct exposure for long shutter times in bulb mode?

How do I take a very long exposure shot from EOS M? I see when i reduce the shutter speed to bulb setting, i see the picture is completely over exposed.
7
votes
3answers
213 views

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 ...
2
votes
1answer
102 views

Why don't the Shutter Speed, Exposure Time, Lens Aperture, and F-Number metadata values from my camera make sense?

I was just looking at some digital image properties, and it did not seem to make sense. Shutter Speed: 1/16 sec. Exposure Time: 1/11 sec. Lens Aperture: F/1 F-Number: 2.8 I would have thought that ...
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votes
2answers
60 views

How do I set the exposure manually on a Nikon D5100?

I bought a year ago a Nikon D5100, but there is still one thing I don't know about it : how do I set my exposure manually? I can set it with the AE button, but is there a way to set it manually, I ...
4
votes
4answers
468 views

What is the relationship between ISO, aperture, and shutter speed?

I know digital cameras have ISO options, and that ISO is the camera's sensitivity to light, but if you set higher ISO then you can get a noisy image. I also know there are two other camera options, ...
2
votes
1answer
94 views

If I want to get the effect of overexposure from pushed black and white film, do I add even more time in developing?

In color negative film, it is common to half-rate the marked ISO, e.g. ISO400 config as 200 to cheat the camera to overexpose by one stop. B&W Film such as Tri-X 400, it is common to push the ISO ...
1
vote
4answers
111 views

Isn't the exposure meter scale shorter than the permissible range of EC?

I have a Nikon D5300. Yesterday, when I was fiddling with the camera, I noticed that the permissible range of exposure compensation is [-5.0,+5.0] while the exposure/light meter is calibrated from ...
0
votes
4answers
115 views

Indoor photos with flash often overexposed?

I've had an NX1000 for more or less one year now, and I use it mainly to shoot landscapes and outside things. I wanted to shoot some people recently, and I had to use flash. And then things got weird. ...
1
vote
4answers
143 views

Why do lightbulbs look too bright in my photos?

Lightbulbs used to appear fine in my photos- you can still see the outline of the bulbs and the brightness of the bulbs is just fine. Now, they appear too bright as if they exploded. What seems to be ...
1
vote
4answers
684 views

Why does this happen: objects which are surrounded by brighter objects appear darker?

Objects surrounded by a brighter area appear darker, and if the brightness of the area increases further, then the objects appear even darker? An ex: Sun spots appear black. I observed the following ...
-2
votes
3answers
92 views

Is there a safe way to avoid both blur and underexposure when shooting “street”? [closed]

When we are shooting in the street, what are the preferable camera settings? Of course it depends on light, but is there any safe way to get right image avoiding blur, dark images, etc.?
0
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2answers
139 views

Why do I get inconsistent results with Canon ETTL flash?

When using any flash I have ever bought on whatever camera I ever had I get inconsistent results. So I am assuming it is my lack of knowledge. I am now using the canon 6d and a 600ex-rt flash on ...