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18 votes
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Is my camera seeing infrared?

If you only see the effect when the D7500 is turned on but not when the camera is turned off you are almost certainly seeing near-infrared light recorded by the camera taking the photo. It's fairly ...
Michael C's user avatar
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14 votes
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Why is the IR filter present when there is already the Bayer filter on an image sensor?

The Bayer filter passbands are designed to be make the sensor have a reasonable match to the human eye, while not costing too much. They're fairly leaky even in the visible part of their stop band, ...
Chris H's user avatar
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11 votes
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How was this High-Resolution Short-Wave Infrared image captured?

Well, I can tell you I definitely didn't take it with my Sony A7. I think Photoshop pulls the metadata when you lay the images side by side from what it can find. The visible and NIR images were ...
Nick Spiker's user avatar
9 votes

Is my camera seeing infrared?

Is my camera capturing infrared? Yes. All cameras are capturing some infrared. Digital cameras are particularly good at capturing IR, that's why most of them have internal filter that dims out the IR....
Agent_L's user avatar
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9 votes
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How many stops should I compensate for with SFX200 and Hoya R72 Filter?

SFX200 is sensitive to light up to 740nm. The Hoya R72 blocks all wavelengths up to 720nm. So, first and foremost, you need to be aware that you are photographing a range that you can't see and your ...
OnBreak.'s user avatar
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8 votes

Is my camera seeing infrared?

Run this test: Image your IR TV remote while pressing the volume up button. Can you image the IR LED outputting IR?
Alan Marcus's user avatar
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7 votes
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Infrared photography—why are green leaves not appearing as white?

Ok guys, here is an answer. It turns out that the weak point of my IR photography setup is... Zomei IR filter. I bought a high quality Hoya R72 (720 nm) infrared filter. I was shocked by the result. ...
Luke's user avatar
  • 241
7 votes
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What is the point of the infrared focus markers?

Lenses may have different markings, which include: Lines associated with different focal lengths in various colors.  Such lenses are varifocal zooms, where the focus point changes with the focal ...
xiota's user avatar
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6 votes
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Can I convert a regular digital camera so the R-G-B channels actually represent different infrared bands?

Not really. If you want to take a hack at it, the first thing you'll need is the transmittance curves of your (presumably Bayer) color filter. Then,if you're lucky, there's an NIR wavelength at ...
Carl Witthoft's user avatar
6 votes

How many stops should I compensate for with SFX200 and Hoya R72 Filter?

I have more experience with Rollei Infrared 400, which is "the other" IR film. Where I live it is somewhat cheaper than SFX, which tips the scale for a cheapskate such as I. So take me with pinch of ...
Jindra Lacko's user avatar
  • 5,990
6 votes

Infrared photography—why are green leaves not appearing as white?

You're not missing anything - some epic post production is pretty much always used to create digital IR images. Life Pixel is a company that does conversions, but they've also put together an ...
OnBreak.'s user avatar
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6 votes
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How come I see infra-red in my photos?

Anyone can test their camera for IR, just image your TV remote. Likely you will see it's IR output as a spot of colored light. What color will this spot be? The camera's imaging chip is a matrix of ...
Alan Marcus's user avatar
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5 votes

Sum of pixel values more than incident photons

Based on your question at Mathematica.SE I assume that you simply summed up the integer values for each pixel in the raw file, and the total was greater than what you assume to be the number of ...
Szabolcs's user avatar
  • 2,883
5 votes

Are there types of photography centered around wavelengths other than IR or visible light?

Extended/Full-Spectrum Photography Here is a graph to show the general sensitivity of a sensor to various wavelengths: By putting an IR filter over your lens, you were able to take pictures in the ...
xiota's user avatar
  • 27k
5 votes
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How do different colours look in Infrared Light?

How do different colours look in Infrared Light? They don't look like anything in infrared light. A "true color" infrared image would appear totally black to human eyes. What we define as "color" is ...
Michael C's user avatar
  • 175k
5 votes

Infrared photography—why are green leaves not appearing as white?

I've used a few cameras with the hot filter removed, including a Canon DSLR. In your case, the problem is twofold: On Canon DSLRs, the sensor stack seems to be somewhat insensitive to IR. There is ...
xiota's user avatar
  • 27k
5 votes

What is the difference between IR and ND filters?

ND stands for "neutral density" - it is a filter type that (in theory) absorbs all wavelengths of the visible light by the same amount. Effect of a ND-filter. CC-BY-SA 2.0: Robert Emperley IR ...
flolilo's user avatar
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5 votes
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What specifications does a macro lens need for a Thermal Seek CompactPro?

You need a ZnSe convex or planoconvex lens. Placing it in front of your existing lens will allow it to focus closer. Search for "ZnSe lens" on your favorite shopping sites. Many are listed ...
xiota's user avatar
  • 27k
5 votes

Why are the colours are not coming out right in my infrared photography?

Here's what a true color rendering of an image exposed to only infrared light looks like to our eyes: Any time we create an image using only wavelengths that our human vision does not perceive we ...
Michael C's user avatar
  • 175k
4 votes

How do I use an infrared filter to photograph underwriting on a painting?

If the E-510 you purchased is not modified for IR work, it may not be the appropriate tool. Digital cameras these days come with UV/IR blockers over their sensors to keep colors true (UV/IR ...
inkista's user avatar
  • 52.4k
4 votes

Are there types of photography centered around wavelengths other than IR or visible light?

The visual range of the electromagnetic spectrum covers slightly less than one octave (wavelength 400 thru 700 nanometers; the center of this range is 1/50,000 of an inch). Mankind evolved to ...
Alan Marcus's user avatar
  • 39.3k
4 votes

How do different colours look in Infrared Light?

As @null said, infrared is an invisible (to the eye) band of frequencies beyond what we can see. It's hard to quantify how visible colors translate to monochrome- it has more to do with how they are ...
BobT's user avatar
  • 6,744
4 votes

How to avoid overexposed and red/blue tinted infrared images with Sigma SD14?

This is standard for digital IR photography. You will get better results if you set the camera to a B&W mode (if there's such an option on your camera) or if you manually convert your images to ...
Leon's user avatar
  • 141
4 votes
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What is a more accurate name for "Full-spectrum" photography?

Every field of study and practice has established terminology and usage. It generally does not make sense to apply the jargon of one to another. For instance, suppose you take photos with a "720nm" ...
xiota's user avatar
  • 27k
4 votes

Nikon D3100 converted to Infrared only takes red pictures

If the camera was modified to pass mostly IR light, then this is normal. You need to convert the images to monochrome. Take a picture of foliage outside. Then desaturate completely. If the foliage ...
Mattman944's user avatar
  • 1,234
4 votes
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Can I use on-lens IR filter for a full-spectrum converted camera?

One note: What is meant by "IR filter" depends on the context in which the term is used. When we say the camera has an "IR filter" in the stack of cover glass in front of the ...
Michael C's user avatar
  • 175k
3 votes
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Can one use the iPhone X's (and newer models) infrared camera for photographic purposes?

According to the (currently only) answer at the recent StackOverflow question, Is it possible to access the infrared camera on iPhone X?, not via the approved iOS API library calls. But ...
scottbb's user avatar
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3 votes
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Can I remove the IR filter from the sensor, and use a IR bypass filter on the outside of the lens instead?

The on-sensor optical filter has an effect on the optical distance between the sensor and the objective. Whenever you remove glass from the space between the sensor and the objective, you are very ...
Euri Pinhollow's user avatar
3 votes

Can a Nikon D3200 shoot infrared video?

The Nikon D3200 (like most other DSLRs) has an IR filter on its sensor. You have two ways of making it do IR photography and both involve some DIY work and have their caveats. You could use an IR ...
nik's user avatar
  • 689
3 votes

Why isn't my Canon RC-6 remote control working with my Canon 550D?

I had the same problem with my Rebel T3i, and through Canon support I found the actual solution. On the T31, there is a movie mode menu you have to get to. To do so, you have to first put the camera ...
Bob's user avatar
  • 31

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