Open

by damned truths

submit your photo


Hall of Fame
View past winners from this year

Please participate in Meta
and help us grow.

The means by which a camera automatically determines exposure settings such as shutter speed, aperture, and ISO (sensitivity).

learn more… | top users | synonyms

4
votes
1answer
353 views

Do I need a $600 light meter or will a $250 one do?

I want to learn more about light and I think finally getting a light meter will help do the trick. I'd like to see the amount of light coming from different light bulbs and the differences in the sun ...
1
vote
1answer
3k views

When to use different combinations of TTL/TTL-BL and Spot/Matrix metering?

I am trying to teach myself flash photography, and I am currently confused about metering modes. In what shooting conditions would each the following metering modes be best-suited? (And why do they ...
13
votes
7answers
561 views

Why can't digital camera sensors expose each photosite individually?

Why is it impossible for camera sensors to function the way the human eye can? What I mean is, why does a certain portion of the image have to be over/underexposed if we compensate for dark and light ...
2
votes
1answer
503 views

How important is lack of color matrix metering and 100% viewfinder in Nikon F100 compared to Nikon F5?

I'm planning to buy a film camera. I'm undecided between Nikon F100 and Nikon F5. The major differences that I could figure out from Thom Hogan's review are: Pro F100: F100 is lighter than the ...
0
votes
2answers
3k views

Why is exposure meter reading not changing in Manual mode?

I own a Nikon D90. I am new to exposure setting. In Manual mode, I could see the exposure meter changing towards right of zero and towards left of zero informing about under exposure and over ...
9
votes
0answers
337 views

How do I avoid a dark subject when there's bright sunlight from windows? [duplicate]

Possible Duplicate: How do you avoid a dim portrait with a bright background and no external flash? I recently shot some photos at a friend's wedding. The location was lovely with lots of ...
4
votes
5answers
5k views

How do I check the exposure meter reading on a DSLR?

I'm a beginner, and I have a Nikon D5100. Many times I come across the suggestion to "Check the meter reading for exposure." Where can I find this reading and how do I read it?
18
votes
5answers
13k views

How well do smart phone light meter apps work?

There are a number of smart phone apps which use the phone's camera as a light meter. How well do these work? The metering built into most modern cameras is very powerful and accurate, but in some ...
4
votes
2answers
2k views

What is a light meter, how do I use one, and for what sort of digital photography do I need one?

What is a light meter? How do I use one? What sort of photography will fool a digital camera's meter? Hence for those you do need to meter.
3
votes
2answers
410 views

How to calculate exposure time for Fuji Velvia RVP 50 using a DSLR spot meter?

I have a couple of RVP 50 rolls I would like to experiment with - The idea is to set up a tripod and use a Canon 5D MK2 in ISO 50 mode for composition focusing and exposure metering, then replace the ...
10
votes
1answer
508 views

Why isn't TTL metering accurate when using a non-electronic lens?

I recently bought a Lensbaby lens and I played with it a lot. Then lens is awesome but I have one big and annoying problem and is that TTL metering fails miserably when using P, TV and M modes. I ...
6
votes
3answers
1k views

How to get meter reading for a DSLR if not from a gray card?

I read an article called Expose (to the) Right, which explained why you should try to get the graph of the histogram as much to the right of the scale as possible. The reasoning is that DSLRs record ...
5
votes
1answer
460 views

What is the logic behind “Brother Backlit Sky” in the book Understanding Exposure?

I don't know if this question is too specific, but after reading Understanding Exposure, I can't understand very well the reasons and logic behind Brother Backlit Sky and their brothers. Although I ...
10
votes
6answers
1k views

What are typical situations where you should use auto-exposure lock (AE-L)?

What are the typical situations where you should use AE for locking exposure?
4
votes
2answers
426 views

How can I meter to get a black object black?

If I have something in my scene that I want rather close to pure black - can I spot meter off the object and then adjust the exposure by a consistent, pre-defined number of stops to get black instead ...
13
votes
4answers
4k views

How should I learn to understand Canon's metering?

Spot metering is my preferred metering mode on the Canon 50D. This allows me to nail the exposure first time -- 99% of the time -- by using AE-lock on my subject and applying the desired amount of ...
14
votes
5answers
909 views

What's a good ad-hoc replacement for a gray card?

I know that a real gray card is the best thing to use to determine exposure. But I'd like to know if there are other naturally available features that can be used in a quick and dirty way. Are fields ...
24
votes
3answers
3k views

How do I meter for long exposures (10+ minutes)?

One of my longstanding interests is long exposure night photography. However, many of the situations where I am shooting require exposure lengths on the order of 10 minutes, which is far beyond what ...
18
votes
4answers
12k views

How do I “focus and recompose” using spot metering?

I usually use the "[auto]focus and recompose" method for taking candid photographs. In situations where there is a high degree of contrast, I would like to use spot metering to correct expose for ...
3
votes
1answer
423 views

What is the photopic luminous efficiency function?

What is the photopic luminous efficiency function? Is it actually a the, or are there multiple such functions? Is it an absolute fact of nature or simply an agreed-on standard? If the later, who ...
14
votes
2answers
7k views

What is the difference between luminance and illuminance?

The more I read about this, the more confused I become. Illuminance, as I understand it, measured in lux, is the perceived brightness of light on a surface. It's what you'd measure with an incident ...
8
votes
3answers
386 views

Does spot/partial metering always assume 18%?

I'm beginning to work on understanding and hopefully effectively using different metering modes in my photography. I have done some reading and understand the benefit of using spot and partial ...
6
votes
1answer
3k views

How to calculate Lux from EV?

Instead of looking up a chart, how can I calculate Lux from EV? Thanks!
4
votes
3answers
717 views

Since I can't get a light meter reading in the Canon EOS utility on manual, what should I do instead?

I've made a giant copy stand using an artist easel that slides up and down. It's working great, and after help on here I've decided to shoot my artwork archive project on manual (M) setting while ...
0
votes
2answers
318 views

Light meter adjustment for a manual focusing screen

Katz Eye has replacement focusing screens for semipro Canon cameras, but they do affect the light meter in some situations. I am rather fond of using my spot meter, but am annoyed by the effects of ...
9
votes
3answers
2k views

Metering - How to account for the light from the flash

I pretty much use Manual mode (in my Nikon D40) and learning quite a lot from it. Though I understand "Metering" for correct exposure, I've trouble understanding it while using Flash (both in-built as ...
31
votes
6answers
9k views

How do I use spot metering?

What's the right way to use spot metering? Is it better to use in manual mode than one of the priority modes? There's a question about when to use spot metering, but none that serves as a tutorial to ...
8
votes
3answers
583 views

Can spot metering be corrected in post processing?

I just started experimenting with spot metering + exposure compensation. I'm wondering if it's possible to make adjustments during post processing to correct the metering. I'm pretty sure (correct me ...
3
votes
1answer
780 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 ...
0
votes
1answer
388 views

Difference between metering modes [duplicate]

My canon XTi has the following metering modes; Evaluative, Partial, and Center-Weighted Average. What is the diference between these and what situations would you them in?
34
votes
6answers
4k views

Why use a dedicated light meter instead of the one built into the camera?

I know a few people who carry around a dedicated light meter unit (such as this one by Sekonic) and use that to meter photos instead of using the meter built into their cameras (and these are ...
7
votes
3answers
774 views

Is center-weighted metering a type of spot-metering?

Does center-weighted metering use the same camera/lens adjustments as spot metering with the exception of the focus which is in the center? Or is there a technical difference in the way ...
11
votes
5answers
1k views

How do I effectively photograph when the sun is in the frame?

I have been trying to get a good shot out of direct sunlight but my shots just turn out dark, even if I set my shutter speed to the 1000-4000 range at ISO 200. Another odd thing is that even if my ...
13
votes
2answers
523 views

How do I use the +/- scale of the light meter in my camera?

I have just recently used the metering scale. I assume that if the scale arrow points in the middle, this means that the camera detects that the current exposure settings are the "right" ones. ...
13
votes
8answers
653 views

What exposure mode and techniques should I use when out-and-about?

I'm interested to hear what exposure/metering techniques people use when taking out-and-about shots (no tripod). I almost always have my camera set to Aperture Priority mode, and I suspect most people ...
39
votes
5answers
4k views

When best to use Multi-Zone/Matrix, Spot, or Center-Weight?

What are Multi-Zone/Matrix metering, Center-Weighted metering, and Spot metering? What about Partial? Is there a good rule of thumb, or a few pointers, on when best to use each metering mode?
19
votes
4answers
17k views

What does TTL mean?

I'm new to photography and I see the term TTL all over the place. What does it mean? And how do I use it to make my pictures better?
9
votes
3answers
354 views

How can I check the metering calibration on my camera?

I have a feeling that my camera isn't metering as well as it used to, and I think it is now over exposing by about a stop. Whilst this can be counteracted by using exposure compensation, it's not a ...
7
votes
2answers
594 views

Metering mode in panasonic Fz35

I am new to photography, recently I bought a new camera which is Panasonic Fz35 which has lots of nice features in it. However while browsing through the settings mode, I found an option for Metering ...
12
votes
3answers
2k views

How can correctly measure light using a built-in camera meter?

Many times I shot photos, but the photo is some times too bright or too dark and the colors are incorrect. Some times the white on the photo is not the white that I have on background but gray and I ...
31
votes
12answers
3k views

What situations are best suited for spot metering?

I have found myself using spot metering on several occasions in order to get the right exposure, such as sunsets and on bright days with a subject in the shade. What other situations are well suited ...
16
votes
4answers
1k views

Where is it best to meter for sunrise and sunsets?

I can never get nice silhouettes and appropriate exposures for sunrise and sunset. How should I meter for this?