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

learn more… | top users | synonyms

2
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3answers
148 views

How to adjust exposure for both the sky and the landscape?

I am using Canon 600D. I am facing a problem in composing, where I will be taking pics at mid day with full of sunlight, half of my frame filled with with sky and other half any scenery (may be a ...
0
votes
1answer
68 views

How do I take the right exposure quickly with Nikon D5300 and old AI-S Lenses?

I've inherited an interesting set of old AI-S lenses from my dad. I use them on my Nikon D5300. They do work, but only in fully manual mode. It's cool that I can use those lenses but it takes me a ...
6
votes
1answer
143 views

Why don't cameras have metering modes that expose RAW files to the right?

Cameras could do ETTR quicker and more accurately than humans, and without the risk of actually clipping any pixels. The camera could then write a field to the RAW metadata telling the viewer home ...
0
votes
1answer
77 views

Even exposure for portrait photos [duplicate]

I'm using a Canon Powershot sx510hs which is an advanced point and shoot camera with 30x optical zoom. It has only one focus point at the center. Whenever I am trying to take portraits, having sky as ...
0
votes
1answer
72 views

How can I calculate settings for manual flash to reduce trial and error? [duplicate]

I have two Yongnuo 560-III flashes that I have been using for a while, In order to get good results I am having to do a lot of trial and error. Adjusting power, zoom, moving them around etc. Is there ...
1
vote
2answers
119 views

Why change to open-aperture metering when this causes the need to stop-down for old lenses

On my Pentax ME Super with a legacy lens (Pentax SMC 50mm 1.7) my camera meters at all aperture ring settings. Yet, if I transfer this lens to a modern Pentax DSLR, I need to stop down the lens to ...
1
vote
2answers
153 views

What's the best equipment to use for off-camera fill-flash on location?

I want to be able to use off-camera fill in flash, but I'm not sure if my equipment is up to scratch. I have a Canon 550D camera and 430EX (MkI) speedlite. I can use E-TTL when the speedlight is ...
0
votes
0answers
58 views

Minolta x370s low range led blinks in all light conditions

Using my old Minolta x370s it always shows the metered light as being below the cameras range and the low range led blinks, even in very bright conditions and with the largest aperture. Is this ...
0
votes
1answer
77 views

Does making a focus area smaller in spot metering help with focusing?

In my camera there is a spot metering mode that its icon is one small circle inside a rectangle. Then in the camera menu I can set how many millimeters around the area is the spot area or something ...
0
votes
2answers
133 views

How can I know how far the in focus area extends [duplicate]

I know when for example camera is on f2.8 it means an area in front and back of the place that focus is, will be in focus and areas closer or farther will be out of focus, but if it is for example ...
5
votes
1answer
299 views

Is it normal for Nikon DSLR viewfinder and live view shutter speeds to differ?

I have a Nikon D600 set up on a tripod in a room with decent light. I've tried using 2 different lenses & when I switch from the viewfinder to live view, and vice versa, the shutter speed is ...
3
votes
2answers
184 views

How do I read the shutter speed from my light meter?

I'm very new to photography. I am doing objects in studio light conditions. I have an Olympus OM-D E-M1. I was given a Sekonic 478DR light meter. Trying to play around with it, and I can't figure ...
3
votes
1answer
164 views

Why are gray cards, and not red or other colour, used for camera metering?

And how different is 18% gray from 18% red? I was thinking about the properties of light and spectrum to better understand the camera metering mode. 18% means approx 1 out of 5 photons will be ...
1
vote
2answers
234 views

how to determine how much power to use in manual mode for external flash? [duplicate]

i recently added an sb700 to my d3200 and am unsure how to determine proper amount of power to use in photos. in another thread here on stack exchange, it was suggested that the ttl metering makes a ...
2
votes
2answers
243 views

Can changing metering mode change focus?

I've Canon 600D and I use the back button to focus and the shutter to meter, I've been using spot metering for over 2 years for now and I understand what's the difference between it and evaluative, I ...
3
votes
5answers
1k views

Why would you have a light meter chose your aperture for you?

The title of my question may seem misleading; I don't intend to ask how a proper exposure is calculated. I know the exposure triangle of ISO, aperture and shutter speed. But in several articles ...
7
votes
3answers
383 views

Why do I meter under the chin with a lightmeter?

Every single tutorial or video has advised to meter for a portrait right under the chin. First of all why? If the face is the most important part, wouldn't you meter right at the face? Secondly, I ...
1
vote
0answers
48 views

Lightmeter not changing values after adjusted flash power?

This is my first time learning to use a light meter. Measuring ambient seems to be working and straight forward. However measuring the flash seems to be broken. I have it set to wait for a flash. ...
1
vote
0answers
117 views

How to adjust power on Yongnuo-14 EX Macro flash ring and Yongnuo 560 slave?

I recently purchased the above item and I am ready to toss it in the trash! Why? Because the directions that come in the manual are NOT for camera rookies. Terms I don't understand, etc. However, all ...
2
votes
2answers
141 views

How does a camera meter light when the shutter is closed?

I have read when we check the image from viewfinder, we can set the aperture, shutter speed and ISO based on the light coming through the shutter. But, only when we click the shutter release is the ...
1
vote
1answer
320 views

How do analog photography light meters work?

I have a Canon AE-1 film camera. It works well and I've several FD, FL and Vivitar lenses. For recent digital cameras, I know how the light meter works. However, with this old camera, I would shed ...
2
votes
2answers
360 views

Which metering mode is best for portraiture using a white background?

I was wondering whether its best to use spot, centre weighted or matrix metering for portraiture when using a white background. It feels like it could be better to use spot or centre weighted to make ...
2
votes
3answers
176 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 ...
9
votes
3answers
624 views

Why are exposure settings different while using different lenses under the same lighting conditions?

I was shooting a scene, using a Canon 28mm 1.8, and after a few seconds I switched to a Canon 100mm 2.8, and the in-camera meter was suggesting different exposures! Why does this happen? Is this ...
2
votes
2answers
227 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 ...
7
votes
1answer
570 views

How to select a light meter?

I'm looking for a light meter to use with an old film camera that doesn't have a working meter, and the bevy of options with prices all over the place is a bit overwhelming. I'm trying to narrow down ...
0
votes
2answers
700 views

Why is my Canon 7D light sensor under-sensitive?

It seems the light meter indicator in the viewfinder on my Canon 7D underestimates how bright the picture will be. This makes for overexposed photos whenever I use anything other than full manual ...
0
votes
2answers
226 views

Should I always use point-autofocus and spot metering while shooting a small restless bird in a bush?

I am a beginner and I am finding more and more images to be out of focus or grainy when viewed on a computer screen, compared to the camera LCD. Could anyone give a step by step listing of the ...
1
vote
3answers
172 views

Effect of Metering on Captured Image

I've been using the advanced metering modes on my Canon EOS 7D (and also on an XSI I owned previously) for several years now. I had always assumed that the purpose of the different metering modes was ...
-1
votes
1answer
404 views

What would be an accurate light meter app on Android? [closed]

This question was 2 years ago and it talks about light metering apps for smart phones. Can someone suggest a good (accurate) light meter app for Android (specifically Google Nexus 5)?
7
votes
5answers
1k views

Will metering from a DSLR apply to a film SLR?

I still like to shoot with film (I use a Nikon F3) but I like the immediate feedback of digital. I'm thinking of buying a used DSLR to help me get the framing and lighting right when I shoot static ...
4
votes
2answers
483 views

Why not expose for a cloudy day as a cloudy day?

We all know how cameras try to meter the scene as if it is 18% gray. That's why we should dial in +1 or even more when shooting on a snowy day and -2 for a night scene. What about a cloudy or ...
1
vote
2answers
349 views

Why will low-end Nikons not meter with old lenses?

To quote the source, the following sites claim that the Nikons: D90, D5200, D3200 and so on will not meter with AI lenses. http://www.aiconversions.com/compatibilitytable.htm ...
3
votes
4answers
1k views

P-Mode on Nikon D5100: What are some use cases?

I am using D5100 for around 6 months. I have basic ins-n-out understandings of the camera including A/M/S-mode. In, most scenario, i understand what to use. Else, figure it by trial-n-error. But, in ...
3
votes
2answers
2k 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 ...
0
votes
0answers
41 views

Finding the actual size of an object in an image [duplicate]

This is more of a programming related question rather than with device related . Is there any command line utility that will help me to find the actual size of an object in an image . ...
4
votes
5answers
961 views

What are the easiest (and best) solutions for avoiding a blown out background for a portrait?

Blown-out backgrounds seems like one of the more common issues amateur photographers deal with, and probably one of the things I struggle with most. Metering modes seem more of a compromise between ...
2
votes
2answers
596 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 ...
4
votes
2answers
720 views

How do metering and aperture setting play together in manual mode (Minolta X-700)?

I have been playing around with my mother's Minolta X-700 (objective: Minolta MD 50 mm f/1.7) and though I read the manual (here it is: Manual X-700), I am still unclear about one thing: When I use ...
4
votes
2answers
676 views

Can a grey card be used in place of a flash meter?

I've been trying to improve my flash/studio skills. Googling around, I see that some tutorials use a flash meter to set ratios, two stops for white background... I'd rather not buy another piece of ...
4
votes
3answers
1k views

How do TTL flash metering systems calculate how much power is needed?

Does anyone know how TTL calculates the amount of power to put in after the preflash is done? I understand that the value is somewhat brand specific, but what is the general logic? Because if you ...
1
vote
5answers
367 views

What exactly does TTL flash sets its power to?

I understand that TTL flash means the flash will preflash and try to calculate the right exposure for that particular scene. That part makes sense, but what exactly is the "right exposure"? Does it ...
2
votes
1answer
286 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 ...
1
vote
4answers
469 views

Why doesn't my camera capture a dark picture when it looks dark to the human eye?

I tried searching for this, but found nothing on this topic: is there a way to set the camera to get images in around the brightness a human eye sees? For example, in bright daylight, I would set it ...
1
vote
2answers
1k views

When to use exposure lock with spot metering and when to use exposure compensation?

I was taking a snap on a sunny day, and the subject was in front of light source and subject was shadowed out(or blackened) In this case is it better to use partial/spot metering mode (zoom in to face ...
10
votes
2answers
444 views

How can I expose a waterfall scene correctly?

Last day, I was photographing a waterfall. It was a bright day and I was shooting around 2-3 in the afternoon. I set aperture to f/11 and took the meter reading pointing camera towards the sky. ...
2
votes
3answers
2k 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- ...
3
votes
2answers
319 views

How do i set studio flash power for a film camera without TTL/OTF metering

I have just bougnt an old fully manual medium format camera to play with, nothing serious. anyway on the lens there is a flash attachment point, which got me thinking: How do i decide on flash and ...
4
votes
2answers
321 views

Do point and shoot cameras have a metering sensor?

I have a Pentax point and shot camera and I tried to convert it to Infrared. I was successful to remove the front IR filter from CCD and then I had a 760 nm IR filter to kick start with the infrared ...
7
votes
1answer
338 views

What is the device held near the subject's face in this picture?

I have seen this device that is used widely in filmmaking. What is this device and what is it used for?