25
votes
How does a film camera perform exposure compensation?
I understand that, on a digital camera, "exposure compensation" actually alters signal amplification, similar but not identical to changing the sensitivity.
In general, this is not how the term is ...
- 143k
21
votes
Could a "universal exposure" setting be practically possible?
A digital sensor isn't really best described as "reading data". A much better way to describe it is "collecting photons" that are then converted into data by measuring the microscopic electrical ...
- 175k
14
votes
Could a "universal exposure" setting be practically possible?
We already have some of the technology for this. Our term for remembering the sensor readings at each exposure point is "video", and what you are asking for is reconstruction of an optimal still image ...
- 241
13
votes
How does a film camera perform exposure compensation?
It's not the case that "exposure compensation actually alters signal amplification".
There are only 3 ways to control exposure: aperture, shutter speed and ISO. Exposure compensation is not a magical ...
- 11.7k
13
votes
Dealing with exposure time during sports photography
Selecting an appropriate aperture
When shooting sports in low light you're not going to be able to shoot at f/11. Most of us use f/2.8 lenses and shoot wide open. We do this not only because it helps ...
- 175k
12
votes
Accepted
Dealing with exposure time during sports photography
Sports photography usually require two things: a long focal length and a wide aperture.
The long lens is required to shoot action a long way away.
The wide aperture is used for two purposes:
...
- 4,864
12
votes
Using Auto ISO when shooting
I was told it’s not good to use auto ISO
If unqualified, whoever told you that is a fool. Auto ISO is a tool, and as with any other tool it can be used well and it can be used badly.
Instead try to ...
- 21.8k
12
votes
Accepted
Using Auto ISO when shooting
It’s getting me the shot even though there is some noise
This is the point. If your priority is getting the shot, why not. But if your priority is getting a printable photo (which is what many people ...
- 20.6k
11
votes
Could a "universal exposure" setting be practically possible?
The original question is based on incorrect assumption (about digital sensor not changing state during the exposure) but the concept is related to the Quanta Image Sensor (QIS) idea researched by Eric ...
- 5,060
9
votes
How does software exposure compensation work in RAW files?
You are not actually adding light, you are simply enhancing what little light you gathered. With a JPEG, "stretching" or "pushing" and "attenuating" are all done in the camera, and those enhancements ...
- 70.7k
8
votes
Is spot metering just an EV compensation?
Is spot metering just an EV compensation?
Metering, regardless of type, and exposure compensation are different functions with different purposes. Metering is used to obtain exposure exposure ...
- 26.9k
7
votes
How does software exposure compensation work in RAW files?
There is nothing special or magical in RAW files.
When it comes to exposure and balance, RAW files just store more information about colors, than JPEG files do.
Either way, these colors consist of ...
- 5,060
7
votes
Are my RAW photos underexposed?
Always trust the histogram. Unless you diligently adjust the rear LCD brightness every time the ambient lighting changes significantly, you cannot really rely on that. It does sound like you have the ...
- 1,786
6
votes
Dealing with exposure time during sports photography
The most obvious thing is that you chose to use f/11 for your photos. At least according to the EXIF data on this image, your lens had a maximum aperture value of f/5.1 at this focal length. By using ...
- 21.8k
6
votes
Canon Live View: How to capture the exact image displayed on the screen?
That image is bright because it is boosted electronically. You don't really want to have that image, as it's extremely noisy. It only looks (somewhat) ok on the camera's LCD because you can't really ...
- 7,151
6
votes
Accepted
Light meter battery ran low and I overexposed my ASA 400 HP5+. How much should I push my film?
If you've overexposed, you want to pull rather than push your film.
Film pushing involves developing to higher than normal contrast, which causes a given exposure to produce more density. Since this ...
- 7,113
5
votes
Why does this happen: objects which are surrounded by brighter objects appear darker?
If you'll look at the exposure data of both images you will see, that they are not equivalent. That means that the shadow spot was exposured differently and thus has different intensity.
That's how ...
- 1,791
5
votes
Should I use Active D-Lighting when shooting Raw?
I have a Nikon D3s, only take raw files from the camera, and keep active D-lighting on most of the time.
The purpose of ADL is to avoid blowing highlights that are too small or off-target to be ...
- 17.4k
4
votes
Accepted
Why is my HDR image oversaturated and look negative inverse in highlight areas?
Software have trouble when there is motion in the scene to merge into an HDR image or even perform Exposure Fusion. There are two ways to deal with this:
Increase your odds by shooting multiple ...
- 103k
4
votes
How does software exposure compensation work in RAW files?
Most definitely not a stupid question: I actually wondered the same thing when I first got into shooting raw.
Before you can really understand what's happening when you adjust exposure in software, ...
4
votes
Dark Image at longer focal (aviation photography)
Use manual exposure mode. The aircraft is a very small part of the total frame that is mostly filled with a much brighter sky. Your camera's automatic exposure modes don't know that you want to expose ...
- 175k
4
votes
Is spot metering just an EV compensation?
Yes, you could match the spot metering result by some degree of EV compensation, if you knew how much compensation. We typically may not know, so we instead meter it to be able to manage that.
Spot ...
- 12.9k
4
votes
Using Auto ISO when shooting
What are some best practices?
This is all opinion... or, at best, situational. My personal feeling is that it is best to learn exposure in full manual mode and learn/understand the exposure triangle. ...
- 14.9k
4
votes
Using Auto ISO when shooting
In my opinion, there is only one best practice. Know your stuff, know your gear.
In this case, define what is the maximum iso you are willing to use, the maximum noise you are willing to accept in ...
- 24.1k
3
votes
Creating a digital photo with an exposure of EV -2
EV -2 or any other Exposure Value value is not a particular brightness or illuminance level, it is a particular combination of sensitivity (normalized at ISO 100), aperture, and shutter time used to ...
- 175k
3
votes
Accepted
Creating a digital photo with an exposure of EV -2
I'm sure there a many options. One of them would be:
http://rawtherapee.com/downloads
If you not afraid of CLI tools you can look in to something like:
http://www.fmwconcepts.com/imagemagick/...
- 146
3
votes
What could cause very underexposed photos in daylight?
Not sure if its a setting I may have changed by accident or something to do with the light sensors?
It's very likely that you changed a setting accidentally, or that the light changed and you didn't ...
- 31.7k
3
votes
Could a "universal exposure" setting be practically possible?
Film physically changes over the period of time it's exposed. A digital sensor, though, doesn't; it's just reading data.
That really depends on the type of sensor. The kind of CMOS sensors that are ...
- 31.7k
3
votes
Accepted
Does the Fujifilm X-Pro 1 show the effects of exposure compensation in the EVF?
When I asked this in 2012, the answer was "no". However, a firmware update in December 2014 changed it to "there's a setting for that — but only in manual mode". This is also the case in newer X-...
- 143k
Only top scored, non community-wiki answers of a minimum length are eligible