Questions tagged [light]

The word photography means "drawing with light". Controlling or selecting the light a camera records is essential to all aspects of photographic composition.

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8
votes
2answers
383 views

Umbrellas: what's the difference between white ones and silver ones?

I understand that golden reflective umbrellas are usefull to get warmer light. But, what's the difference between white reflective umbrellas and silver umbrellas? Do silver umbrellas also change the ...
26
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3answers
4k views

What's the point in covering the viewfinder?

Recently, I found out that the rubber cover on the strap of my Canon EOS camera is used to cover the viewfinder. I searched on the web to learn why should I cover the viewfinder and I read that it ...
8
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4answers
5k views

Is there any practical way to measure the T-stop of a lens?

T-stop measures actual light transmission in a lens. Therefore, different f/2.8 lenses can have different T-stops. T-stops are usually only given for cine lenses. For photography lenses, is there any ...
0
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2answers
110 views

How are these photos got same color flavor and look so similar?

I'm trying to understand, how all these photos got the same color flavor. The main problem I see - they are all shot under very different lighting conditions - like inside of a flat and on a sunny ...
2
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3answers
3k views

Which is better to use : Mirror or totally reflecting prism?

I'm designing a stereoscopic system to capture 2 images at the same time one for the right eye and one for the left eye. To take a photo through a reflecting system, which one is the best choice of ...
4
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2answers
165 views

RAW Photo of the Moon - How to take pictures of objects in front of a (bright) moon?

I have an object in front of the moon and I wanted to take a RAW (NRW) photo including the moon and the object in front, thinking that I can fix the illumination/overexposure later in Lightroom. But I ...
4
votes
4answers
91 views

Light source giving wrong color

I have been trying most of the settings in my Nikon D3500 to take indoor pictures of my home in dusk situation, or at least what you think is dusk situation, it is hard to explain. I have a very ...
3
votes
1answer
79 views

Light diffuser to mix colours - does it exist?

Say I need a light box to emulate natural light. I have 9 white sources of light and few colored ones. The sources are LED panels 4x10cm so its not a point light (there are no individual LEDs - the ...
5
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6answers
314 views

Would there be a noticeable difference between long exposure and brighter light?

If I take one photo with long exposure and dimmer lights (e.g. constant lighting) and then another photo with short exposure but lights brighter to the level enough to compensate for the shorter ...
1
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3answers
214 views

Dark images problem (low exposure) with canon 650d

I have a canon 650d, recently the camera is taking dark photos (low exposure) I always use good settings/standard, but somehow it started giving dark images in the picture below I was under a strong ...
1
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3answers
121 views

Does light hardness affect color saturation?

I've read in couple of sources that level of hardness of light affects color saturation somehow - harder the light more saturated colors are. Is this actually true or not?
5
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2answers
179 views

How to dismantle this small octagonal softbox?

I need help to dismantle a softbox. The model is an Elinchrom 22" Portalite octagonal softbox. From memory it was exceptionally difficult to assemble and now I'm finding it so impossible to ...
3
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2answers
401 views

Can I damage my camera by shooting directly at a lightbulb in the ceiling?

I got my first dSLR, a Nikon D3500, a few weeks ago. Today I was trying out manual mode and for some reason I thought it would be cool to shoot pointing directly at the lamp/lightbulb in the ceiling ...
1
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1answer
64 views

Which stand or adapter for Colorspike light fixture?

I have these ColorSpike lights that I want to put on a stand. They come with a stand adapter that ends with a 5/8" male stud. So now I am confused: apparently, usually these studs appear on the ...
1
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2answers
98 views

What's the point of this “reflector” that comes with my Godox SL-150W Light?

I can't figure out what this piece that came with my Godox SL-150W is supposed to do. It doesn't seem to be mentioned in the manual that came with it, but I might have missed it due to not knowing the ...
0
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1answer
43 views

measure luminanace with lux meter

can we measure luminance in cd/ m² with a lux meter? I measured illuminance of 35 lux. and since cd = lux*distance² I took some distance of 30 cm and got 3.15 cd. I know that my led-grid surface is ...
2
votes
2answers
57 views

Best Flat Light Diffuser for a High-Intensity Flashlight

I am doing some experimentation with a compact lighting kit to use for capturing textures, hence some constraints. I am using a high-intensity flashlight like the Acebeam X80-GT placed at a 1-3m ...
1
vote
1answer
225 views

What might have caused this Leica M6 light leak?

I just bought a Leica M6 a week ago, and developed the first and second roll I took. The photos in the first roll showed no problem, but the in the second roll, the first, second, and third photo is ...
2
votes
2answers
200 views

What is the effect of relative size of light source vs diffusion on the quality of light?

I have used large softboxes for my portraiture quite a while with good success. However, I come across the topic of diffusion vs size of the light source quite often. While I know, that the relative ...
1
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2answers
199 views

What is the cause of a dimmer image of a light source in a photo? [duplicate]

Why does an image of the panel appear to left side of the actual object when the picture is taken if the lamp in a switched on state?
1
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0answers
36 views

Nikon d7100 top lcd ligh turns on when flash is fired

Today while shooting I noticed, that when I use an external flash, the top LCD light turns on. I turned it off, by clicking to the bulb icon as usually, and when I fired again, it turned on once again....
0
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1answer
123 views

How can we calculate effective megapixel loss due to diffraction?

How can we calculate an image's effective megapixel count at each aperture setting, specifically as loss relates to diffraction? Assume that we already know the sensor size, its true megapixel count, ...
14
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3answers
2k views

What is the pre-computer version of Photoshop's blending modes?

Before computers, to blend two pictures into one, I'd imagine they'd have used some sort of mirror setup to reflect the one picture onto a mirror containing the reflection of the other picture. Does ...
4
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2answers
266 views

Why are mid-day images dull?

When I take pictures at mid-day, well before the golden hour, my images are usually dull. They seem hazy, low in contrast (perhaps due to haze?), and lacking in saturation. My suspects: Sensor ...
14
votes
2answers
2k views

As a blind person, how can I better understand how wide or narrow a field of view is?

I saw this question but feel that it doesn't fully explain how this works. I am completely blind, so I am trying to come up with a tactile pictorial representation of how field of view works. ...
7
votes
10answers
6k views

Why can't I shoot with a fast shutter speed with my continuous light at max power?

I would like to ensure a sharp focus of my object when shooting overhead (both object and background in focus). However, when shooting in manual at f/8.0 and ISO100 my shutter speed has to be 1/4 for ...
0
votes
1answer
301 views

What's this problem with light in my photos called? [duplicate]

I take photos with my phone (a Galaxy S9) frequently and this problem seems to plague me every time I try taking photos indoors near a window during daytime. The light from the window which is above ...
1
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2answers
261 views

What is a more accurate name for “Full-spectrum” photography?

Photography enthusiasts (and Wikipedia) often call photography that happens outside of the visible spectrum full-spectrum photography. From a scientific standpoint, however, I do not believe that ...
5
votes
5answers
23k views

What non-studio lights are best for photography?

I don't have a studio, nor I want studio lights. I am interested in knowing which "kinds" of light "bulbs" should I purchase for my "table lamp" for indoor photography? Are there some particular "...
-1
votes
3answers
99 views

Real light increments using aperture scale in fractional stops

In the case of using f-number with full stops, the +1EV step means 2*light because the Area (A = πr^2) in the diaphragm is doubled (i.e. radius*√2). However, I don't know why in fractional stops such ...
2
votes
2answers
911 views

Why am I getting a lighting gradient or flickering during daytime with fast shutter speed?

While using a Canon 1Dx Mark II, I noticed there is a flicker in the light when I shoot at high shutter speed (1/4000 or faster) in burst. Basically, there is a gradient between two pictures similar ...
5
votes
2answers
1k views

Ways to achieve warm lighting style?

The photo will be taken from the ceiling above the bed and catch the entire bed in the frame. I am trying to simulate a feeling of warmth, safety, and comfort in his bed using the light. I have red ...
2
votes
3answers
226 views

How to get rid of brighter dark areas of the object while taking photo or by editing it later?

I'm having a little hard time taking photos of my pencil drawings. I recently posted a question about noise & blurriness. Here the thing is, my art looks much better on paper but when I take ...
1
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1answer
1k views

Correct Exposure with Polaroid One Step 2

I have a Polaroid OneStep 2 with itype film, and I have some problems on how find the correct exposure. Precisely, almost always I get a picture which is overexposed or underexposed, and I do not know ...
0
votes
2answers
588 views

Calculate the right ISO and exposure compensation based on the ambient light

I'm new to photography and I'm working on this project where I need to find the right balance between ISO and exposure compensation, to take pictures in different environments. This is an App for ...
1
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2answers
455 views

Nikon d3200 plus old Philips flash

A friend is shooting some photos at an indoors night event and he only counts on a Nikon d3200 plus a super old flash Philips P36 TSL. What would be the recommended shooting mode and shutter speed? ...
13
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4answers
2k views

How to achieve pictures filled with light like these?

I would like to know how to achieve the effect of highly exposed pictures filled with light like the ones presented below: unknown source From http://dziecisawazne.pl/iza-faber/ Is this possible ...
2
votes
2answers
8k views

Whats the “most amount of moon” acceptable for astrophotography?

The last time I shot the sky, it was a full moon and it completely ruined my shot. What's the maximum amount of moon (i.e. 1/3, 1/2, etc...) that can be out that won't adversely impact a shot of the ...
11
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2answers
4k views

Is a north-facing window recommended outside of the northern hemisphere?

Many photography book recommend taking photos with natural lighting in a room with a north-facing window? All my books were bought in the Northern Hemisphere but now I live on the Equator. Which ...
1
vote
1answer
482 views

How do you meter shadow with Nikon FM2 built-in light meter

I tried to follow the old adage "expose for the shadows, develop for the highlights", so that I can capture the shadow detail. I only have Nikon FM2 light meter. How can I meter the shadow with it?
21
votes
7answers
4k views

How can one deal with midday light in street photography?

Firstly, of course, photography is all about light, but for doco/street style photography (which is what I like), it's really about being in the right place at the right time. However, I've been ...
1
vote
1answer
83 views

How can I best use two torches (aka flashlights) to take photographs of my artwork indoors?

I have two lights in my room but their light is not enough. So, I count them as ambient light. I don't have enough money to buy something expensive like studio stuff, but I have two torches similar ...
1
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2answers
850 views

Why does the same f-number mean same amount of light? [duplicate]

Intuition tells me that a bigger lens will collect more light with the same f-number than a small lens. But photographers tell me I am wrong. I cannot understand why. There are quite a few posts both ...
5
votes
3answers
11k views

How to configure the camera to capture true colors of ambient light?

I'm an amateur photographer and I have a Nikon D5200 and a ColorChecker Passport. I'm trying to understand what are the procedures that I should take to capture the real true colors that I am seeing. ...
6
votes
5answers
7k views

Does Earth's latitude affect the color of light?

I was talking with a friend about what conditions can affect color, gamma and white balance, and how to get in order these variables into the configuration to set up and get a good shot. Beside the ...
21
votes
4answers
5k views

Do the infrared photographs really contain infrared colors?

In school, we all learned that from white light we can only perceive the visible spectrum but we can't see UV or the IR portions. If this is the case, then how come we can do infrared photography?. ...
1
vote
3answers
317 views

Why does the Y component in YCbCr represent luma/intensity?

As far as I know, the RGB to YCbCr conversion is just a linear transformation, yet the Y channel successfully captures the intensity value of each pixel. How? In other words, where do these magic ...
10
votes
3answers
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 ...
3
votes
3answers
2k views

It is correct to match light sources with the same color temperature?

For example, the color temperature of a candle flame, sunrise and sunset have the same color temperature, knowing that its color temperature is the same, could you say that these sources are similar ...
3
votes
4answers
1k views

Do cameras actively filter out UV light, or only infrared?

I know that a camera has a filter in front of the sensor to limit incoming light to the visible spectrum, to replicate what a human eye can see. But wherever I look on the internet, I always read ...

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