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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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3answers
55 views

What flash power would I need from 2 units, when shooting at f13 and 1/200s ISO100?

Could someone be so kind as to help me figure out the flash strength I would need for this? Settings: D3200, Sigma 70mm Macro. YN560 III & YN560 IV, triggered by the 560-TX. F13, 1/200s and ...
1
vote
1answer
68 views

Exposure level indicator in the top panel not showing correct exposure on Canon 7DMKII

The exposure level indicator on the LCD monitor in the back of the camera is working as it should. The problem is that the exposure level indicator on the LCD panel on the top of the camera is always ...
3
votes
2answers
388 views

Is E-TTL Universal?

Are high-end, high-power studio strobes (i.e., Profoto) integrated into the E-TTL flash exposure system? Do they have the manual settings option?
0
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2answers
61 views

Help with Long exposure

I am relatively new to this so I will appreciate all responses. I went to shoot a long exposure shot with my Nikon D70s. I had it set on bulb mode and f8. Yet when I go back to see the picture. It is ...
5
votes
3answers
64 views

Should I let the lab pull overexposed color negative or leave it overexposed

I shot a roll of expired Fuji Superia 200 at 100 ISO. Effectively overexposing it by one stop. Should I ask the lab to pull it or just leave it overexposed? Why I'm asking, is because I understand ...
2
votes
1answer
39 views

Why do I get a light halo only on sunny exposures using my FED 2?

I recently bought a FED 2 and I got some weird results from my test roll. I've been taking pics in various conditions (inside and outside) and I do get a light halo on sunny outside pics (see below on ...
1
vote
4answers
138 views

Why is ISO counted as part of the exposure triangle?

My understanding of ISO is that it is electronic gain from recorded light in a sensor, ie it doesn't actually change the sensitivity of the sensor (because that is dictated by the quantum efficiency ...
2
votes
4answers
41 views

Can prints be adjusted to better suit lighting conditions?

I've been taking pictures for a couple years now, but have only recently begun to print my work. I have this one print. It looks great on my monitor (color calibrated), and, when I picked it up at ...
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0answers
37 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
167 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
56 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
103 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
vote
1answer
69 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
votes
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
335 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
63 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 studio)...
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4answers
101 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/...
1
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1answer
69 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
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2answers
78 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
67 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
322 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
81 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
118 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
321 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 indicator(...
3
votes
3answers
155 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
88 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
121 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
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4answers
237 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 number....
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1answer
94 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
106 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
181 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, ...
1
vote
6answers
788 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 ...
0
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0answers
117 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
97 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
89 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 ...
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votes
3answers
91 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
390 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
vote
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
86 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 "what ...
4
votes
3answers
558 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
81 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
251 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
518 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
55 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 ...
13
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
113 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
229 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
108 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 ...
-3
votes
2answers
71 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 ...