Questions tagged [brightness]

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How do I calculat luminous intensity (candela) using python?

I'm working on my graduation project which takes the subject of brightness adjustement of switchs using embedded system (python +Raspberry ) i want to determine the candela value from a picture taken ...
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1 vote
1 answer
85 views

Retouch photo with brightness or exposure?

Two controls in software editors are Brightness and Exposure. Both seem to do the same thing: increase the lighting in the image if they're too dark. Why would a outdoor photographer use either or ...
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1 answer
38 views

How to tell if an edited photo has too much exposure?

Small sensor cameras produce photos that are dark. To fix this many increase exposure in their software editor. However, this fix can be quickly abused to the point of over-exposure, especially if the ...
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3 votes
3 answers
364 views

How could I have capture better the lighting for this photo

I took an inhouse photo in which the sun was entering through the window. I'm guessing that due to the contrast, the flowers are really bright but the background is more dark than what it was ...
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2 votes
9 answers
440 views

Is deep depth of field AND bright exposure possible?

I know that a larger aperture corresponds to a brighter exposure and shallower depth of field for a given focal length. Is it optically possible for a custom-built camera to form an image with both a ...
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1 vote
1 answer
118 views

Why did my night pictures turned out so foggy, light or too bright?

I received my developed pictures and many of them are foggy. It seems that some shot with similar light is foggier than the others. Can it be that something went wrong in the development process, is ...
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2 votes
2 answers
71 views

Canon DPP - how to adjust brightness to specified maximum level on some spot automatically

How to adjust brightness to specified maximum level on some spot automatically - for example - on some spot I want to make brightness not exceeding RGB (250,250,250). I can adjust brightness manually ...
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0 votes
1 answer
207 views

Live view on my Nikon D7000 is too dark

So I own a Nikon D7000 and when I use live view (to manual focus for example), its kind of hard to see through live view during the day, and especially on the sun because LCD is not bright enough. ...
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1 vote
0 answers
1k views

Any solutions to a black screen on a nikon d3500

My husband bought me a nikon d3500 last year. To summarize the lcd screen went black a couple months later. While troubleshooting online I was able to shine a light on it and could see the screen it ...
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1 answer
170 views

Is there a way to equalize all the colors' brightness in Photoshop?

I want to know if there's a way to equalize the brightness of all the colors of an image. Like, I have a color image, I want to make its all colors' brightnesses the same value. Ex - H-43 S-73 B-101 ...
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1 vote
1 answer
94 views

Different image viewer shows different color (brightness?) of jpg image

I'm not sure if I should ask this question here or not. I've some images, that have a problem, as the screenshot below shows: The softwares are as following (left to right, top to bottom): [qimgv] [...
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1 vote
1 answer
91 views

What to look out for when shooting in direct sunlight, causing hard shadows and shiny patches on water?

I am aware that this question might be labelled as off-topic, but the issue bothers for some days now, and I figured my best bet to get an answer is here on this site. Whenever I look at pictures I ...
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0 votes
2 answers
184 views

Brightest Portable Speedlight

I am working on a custom build, where I will be using 2 speedlights attached to each side of the camera to take closeup shots (1-2m away from the subject). For the photos, I will be using a 28mm fixed ...
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2 votes
1 answer
152 views

How can the EVF be brighter than the lens?

When I use my mirrorless camera, an Olympus OM-D EM1 Mark II, in a dark room, the EVF shows the room as though it is fully lit, but the lens does not have the same brightness. It's as though the EVF ...
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1 vote
2 answers
94 views

Fear of underexposure despite proper exposure in editing program?

I'm constantly afraid that my images are underexposed for I'm playing a lot with light and shadow and like to shoot at night. Even though in my picture editing program the image seems well exposed ...
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2 votes
2 answers
345 views

"Black point" in lower end/mid range monitors

I bought a Iiyama ProLite XUB2792UHSU for my girlfriend who is a hobby photographer. The monitor had a good review as an all round device, but not necessarily as a graphics monitor. However we were ...
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2 answers
2k views

Why are most of my photos way too dark/underexposed?

I've been taking pictures for years now, firstly with some old digital Nikons, then Canons, then I moved to mirrorless Fuji XT3 (I love it!). Unfortunately most of my pictures have been way too dark, ...
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13 votes
4 answers
2k views

Why is a lens darker than other ones when applying the same settings?

I own a Nikon D500 DSLR, with a Nikkor 16-80 mm 1:2,8-4E ED VR lens. I noticed that this lens, when applying exactly the same settings (same ISO, same aperture, for instance F8.0, same Shutter speed, ...
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8 votes
1 answer
973 views

Tactics for judging if a printed image will be bright enough?

I'm struggling a bit with how to judge if a photo will be bright enough when printed, while I'm working on it on my monitor. "Bright enough" of course changes with the ambient or targeted lighting ...
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2 votes
1 answer
97 views

What could be the reason for suddenly changing brightness in raw image?

A series of night shots show this abrupt change of brightness: It starts at approximately 60% horizontal and extends to the right corner. I didn't notice this effect before, the temperature was ...
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0 votes
3 answers
620 views

How to calculate difference in exposure between two given frames?

This question regards exposure. I have a project I am working on where I need to be able to calculate the exact number of stops between two given exposures, with the end goal being to match the ...
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1 vote
6 answers
2k views

Canon EOS 4000D with Apeman SL 450C Speed Light - Photographs Dark

I have just bought a new Canon EOS 4000D with an Apeman SL 450C speed light. When I take a photograph with the speed light switched off the photographs are a decent brightness. When I switch the speed ...
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1 vote
2 answers
192 views

Indoor office pictures Canon 100D

I took a number of pictures inside my office (without flash and with tripod) and depending on my position in respect to the large windows, picture luminosity varies a lot. Before publishing them, ...
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2 votes
2 answers
85 views

Exposure preferences

Whenever I shoot with my Nikon D5300 in manual mode I set settings so that photos have bit more pop to them - brighter than what the camera exposure meter says the correct exposure is. For instance, ...
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  • 147
-1 votes
1 answer
339 views

Programmatically assessing image quality [closed]

I am using a third party service which processes images and returns some metadata: The data (and ranges) looks like this sharpness 0-1 brightness 0-1 contrast: 0-1 dominant color: hex array of '...
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3 votes
6 answers
2k views

Why do my stock photos always come out gray?

Trying to take stock photos on a white background and all the photos look gray rather than the crisp white like they are in person, and even with trying different settings they are still coming out ...
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40 votes
6 answers
10k views

Why do stars appear as circles, not points?

Excluding the Sun, stars are so far away that their angular diameter is effectively zero. However, when you take pictures of them, brighter stars appear as circles, not points. Why? In theory, any ...
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1 vote
3 answers
229 views

Can a larger format lens provide more light to a crop sensor for a given f-stop?

Having recently spent some time fighting for light with a high-speed camera having a CS mount and a sensor area under .1 inches2, I was wondering if the f rules apply to cropped sensors? For example: ...
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1 vote
1 answer
832 views

Consistent Backgrounds using Darktable

I regularly take photos on a fixed background under natural light. I use a grey-card for white balance which works well enough. I take a test shot with the card, white balance it and save that as a ...
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4 votes
3 answers
275 views

Is it normal for shutter speed to vary between shots on low exposure time?

I was doing a timelapse recording of sunrise with my Canon 1100D. I set manual mode of exposure (M on the disk), exposure time to 1/4000 s (smallest), aperture to f/3.5 (maximally open), ISO to 100 (...
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  • 550
1 vote
1 answer
1k views

Difference between in-camera exposure control and brightness

I'm a photography newbie, and would like to know what is the basic difference between exposure control and brightness (e.g. under Picture Control on a Nikon), but specifically when changing it in-...
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2 votes
2 answers
240 views

Why do out of focus elements in a photograph increase in apparent brightness?

What is the physics that explains the phenomenon observed when out of focus areas increase in apparent brightness?
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5 votes
9 answers
4k views

How can I maintain brightness in a landscape without overexposing the sky?

I'm an amateur photographer learning to take good shots. I need some advise for shooting landscapes in bright daylight. Here's a picture that I've taken from my camera: I took this picture from my ...
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28 votes
8 answers
6k views

Why are these film photos brighter than digital photos taken at the same time with the same settings?

I took two photos - first one with Canon 5D Mark III and the second one with analog Canon EOS 500N. I used the same lens (Canon 50mm ƒ/1.4) and settings (ISO/shutter/aperture) for both of them. The ...
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4 votes
1 answer
4k views

What is "brightness value" in Lightroom?

Lightroom shows me a "brightness value" for each of my photos: I notice that it's negative for night photography and positive for daytime photos, but I don't know how it's computed. Is it the average ...
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0 votes
3 answers
192 views

ANDCamera problem: brightness malfunctioning [duplicate]

I am a newbie photographer and had a question that has been plaguing me for some time now. My NIKON D3100 camera's brightness meter (the lines that change on manual mode when one adjusts shutter ...
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3 votes
4 answers
7k views

Why do some pictures look darker online than on my computer?

I'm shooting raw and I'm on ubuntu. This happens mostly with pictures that have a lot of black or that are very dark. On my screen the picture looks fine (as intended) but when I upload it to 500px or ...
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1 vote
4 answers
1k views

How to normalize brightness of individual images (post-processing) for a stop motion movie?

When creating a stop motion movie we need take a lot of pictures to build the movie. But after we took the pictures, we have a problem: the brightness and contrast varies between pictures. What kind ...
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10 votes
3 answers
3k views

Why do my photos "glow"?

I have a Canon 60D and recently bought a Canon zoom lens EF 24-70mm 2,8L USM. Bright colours seem to "glow" or are blurry when I take photos. It does not seem to be blurred because of movement or ...
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12 votes
5 answers
9k views

How can I fix the overly-bright background in my landscape photo?

I am pretty much a complete newbie to post-processing, since I don't normally post-process my pictures: if I don't like a picture as it is, I consider it a bad picture and discard it. There is, ...
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1 vote
2 answers
118 views

Can HDR technique be used to take picture of a subject with bright background?

From what I read, when taking picture of a subject with a very bright background, we can set the metering to read the bright background (which will make faster shutter speed) and to avoid having dark ...
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0 votes
3 answers
700 views

Brighten a subject without Flash [duplicate]

I'm new to photography and often face problems with subject with a bright background. For example: A worker on a 2nd floor building with bright sky as background and picture captured from ground ...
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  • 412
1 vote
2 answers
546 views

Canon 600D Images [duplicate]

I've been playing with my new 600D and one thing is really starting to annoy me. When I view an image on the canon's screen, the image is clear and bright. The same is true also if I'm controlling the ...
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1 vote
1 answer
652 views

Need brighter flash. Shooting with Polaroid 600SE.

I need advice on acquiring a brighter flash, or a flash with brightness that I can control. I have been used to 35mm for years, shooting on 400 - 800ASA with apertures as large as 1.8. This has ...
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  • 179
1 vote
3 answers
3k views

How is brightness measured?

I understand that for example light blue is brighter than dark blue. But I don't understand really what brigthness in essence is. Wikipedia states that "brightness is the perception elicited by the ...
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6 votes
2 answers
863 views

How do I take a photo like this (very bright)?

I've always wondered how these pictures are taken. They have a very "bright" feel to them. And it feels that they are "bathed" in golden sun light. I understand that I have to take this during the ...
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0 votes
2 answers
157 views

why is a compact sensor brighter than a APS-C size sensor

So I may be missing something but I cannot think what it can be. I have a Sony compact hx9v and an NEX-6. the 16mm on the NEX is very similar to the compact at its widest, so I thought I would ...
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3 votes
1 answer
367 views

What are the effects of turning negative images to positives?

I was using my DSLR (D5200) to digitize some old negatives. Many articles stackoverflow helped with ideas. SO I have a backlit surface on which I place the negative & then take a closeup shot of ...
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5 votes
2 answers
135 views

How large an exposure difference before it's noticable?

I'm being forced to work with a shutter that jitters (e.g., a 1/60 shutter could be anywhere between 1/59 and 1/61). I can't change the hardware, so please don't suggest that. I would if I could. ...
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2 votes
4 answers
1k views

How to take a bulb mode shot of a road in day light? [duplicate]

I need to take the photo of the trailing vehicles on road at day time. I tried a shot in bulb mode at 100 ISO and f/22 of a road in daytime. But that photo is too bight(link below). How can i get the ...
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