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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

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79 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 ...
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1answer
69 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 ...
2
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5answers
575 views

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

The title of my question may seem misleading; I dont intend to ask how a proper exposure is calculated. I know the exposure triangle of iso, aperture and shutter speed. But in several articles ...
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3answers
227 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 ...
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0answers
29 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. ...
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0answers
39 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
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2answers
123 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 ...
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1answer
155 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
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2answers
273 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
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3answers
127 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 ...
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3answers
517 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
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2answers
146 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
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1answer
233 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
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2answers
270 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
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2answers
126 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 ...
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3answers
133 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 ...
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1answer
261 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)?
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5answers
376 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
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2answers
283 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 ...
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2answers
181 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
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4answers
672 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
635 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 ...
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0answers
38 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 . ...
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5answers
595 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
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2answers
382 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 ...
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2answers
367 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
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2answers
387 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
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3answers
931 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 ...
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5answers
286 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
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1answer
235 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 ...
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4answers
350 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 ...
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2answers
658 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
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2answers
413 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
1k 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
215 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
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2answers
268 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
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1answer
320 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?
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4answers
881 views

Can different metering modes affect sharpness for a m42 prime lens?

Recently, I got some old m42 prime lens from Ebay and started playing with them with my Canon T3i/600d. However, it's difficult to get sharp pictures with these manual focus lens as there is no AF ...
4
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3answers
599 views

Metering mode for fireworks shooting

Following up from this question I would like to know what could be the correct metering mode that I should use to shoot fireworks? Since evaluative mode could be tricked here since the a large area of ...
7
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3answers
1k views

Metering strategies for time lapse

In short, my question is: what are the best metering strategies when shooting a time lapse sequence to avoid visible fluctuations in brightness? I'd like to make the day-to-night transition look ...
8
votes
5answers
817 views

Is it usual that a narrow aperture gives a darker picture in aperture priority mode?

I have a Nikon D60 camera here with a Nikkor 35 mm 1:1.8G lens. I don't have any experience with any other digital SLR, so excuse the beginner question. When using aperture priority mode, a narrower ...
8
votes
5answers
2k views

How can I work around metering issues with adapted lenses on a Canon DSLR?

I have a bunch of Contax lenses (C/Y mount) and a mount adapter with "dandelion" chips. This should allow me to use my lenses on any Canon DSLR using aperture mode and stopping down the lens. Thanks ...
2
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4answers
755 views

How to meter for manual bounce flash?

I use a Yungnuo flash in manual mode. I use it mostly indoors, so I bounce the flash off the ceiling. What is a good approach to read the camera metering and make adjustments to flash intensity? My ...
5
votes
2answers
170 views

How do dedicated light meters account for light transmittance?

Dedicated light meters seem to be well-regarded for their versatility and accuracy of metering. What puzzles me about them is how can they account for the different light transmittance of different ...
1
vote
2answers
218 views

What settings do I need for shooting a candid against the sky?

I have Canon 1000D. Most of the times I use canon 50MM F1.8. I use evaluative metering and single point (center) auto focus. What setting do I need to change to have metering of sky (say red of ...
2
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1answer
550 views

What is the reason for underexposure in my film photographs?

Thanks to all the quality answers I got here that helped me to buy a film camera. I got my first roll of film processed and printed. The print results are not as pleasing as looking at the slides ...
2
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3answers
554 views

What metering mode should be used for an HDR shot?

Maybe I'm over thinking this, but I think evaluative is the best being that it would give you the "best" balance of light across the scene. Is it dependent on the scene/mood at the time like a ...
4
votes
1answer
333 views

How do I keep the view finder light meter info on, on a Canon EOS1100D?

How do I keep the light meter display on in the view finder while using manual mode? I find that the display only stays on for a short while which is annoying when trying to set aperture and shutter ...
5
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2answers
2k views

What is the EV scale?

I have seen an "EV" (exposure value) scale that's sometimes used to express a camera's exposure settings, or scene brightness. How exactly does this scale work?
4
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1answer
343 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 ...