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infared filters v nd

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What is the difference between an infrared filter and an ND filter? I have a big stopper and I would like to take some images to show the infrared spectrum I have seen images where green foliage shows up red and any heat source shown up white §Is there any lens filter recommended for this genre of photography

focus

share|improve this question

asked 4 hours ago

tblane2tblane2

61

New contributor

tblane2 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Possible duplicate of Is it possible to do infrared photography with digital cameras?
  
  – scottbb
  1 hour ago
  

  
  
  
  

add a comment | 

1

What is the difference between an infrared filter and an ND filter? I have a big stopper and I would like to take some images to show the infrared spectrum I have seen images where green foliage shows up red and any heat source shown up white §Is there any lens filter recommended for this genre of photography

focus

share|improve this question

asked 4 hours ago

tblane2tblane2

61

New contributor

tblane2 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Possible duplicate of Is it possible to do infrared photography with digital cameras?
  
  – scottbb
  1 hour ago
  

  
  
  
  

add a comment | 

What is the difference between an infrared filter and an ND filter? I have a big stopper and I would like to take some images to show the infrared spectrum I have seen images where green foliage shows up red and any heat source shown up white §Is there any lens filter recommended for this genre of photography

focus

share|improve this question

asked 4 hours ago

tblane2tblane2

61

New contributor

tblane2 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

asked 4 hours ago

tblane2tblane2

61

New contributor

tblane2 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

asked 4 hours ago

tblane2tblane2

61

New contributor

tblane2 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 4 hours ago

tblane2tblane2

61

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asked 4 hours ago

tblane2tblane2

61

1 Answer
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3

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 filters filter out all but certain wavelengths - the (near) IR wavelength of the filter. So basically, they are IR-pass filters, not IR-block filters. ^{Thanks @TheLuckless!}

As @Hueco states in his comment, IR filters will cut everything below a certain value. That value might be between 650 and 720nm - visible light, however, does go up to 750nm. ^{Thanks for clarifying that, Hueco!}

^{Typical result of using an IR filter. Some effort was put into post-production: The red and blue channels were swapped. CC-BY-SA 2.0:
Jannis}

---

What you think of (white heat source, everything else red-ish) is most probably a thermographic camera - they differ from regular cameras in a lot of ways, including lenses that are (typically) made out of Germanium.

^{Thermographic image. CC-BY-SA 3.0: Lutz Weidner}

share|improve this answer

edited 3 hours ago

answered 4 hours ago

floliloflolilo

5,28311838

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  It's important to note that most IR filters block somewhere between 650nm and 720nm and below. Important because visible light goes up to ~750nm.
  
  – Hueco
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Hueco Is there something you do not know better than me? :D In all seriousness, though: Will include that ASAP - just looking for some CC-BY-SA sample pictures for the respective categories.
  
  – flolilo
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  lol. I just happened to start looking at getting a camera converted by the folks at life pixel (many hours spent researching this topic). I'm just not sure if I want to send in the 60D or get a cheap used Rebel for the job. I do love my film, but when it comes to IR shooting, digital wins hands down
  
  – Hueco
  4 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  While rare to find in the general photography world as a standalone piece, it is also good to keep in mind the existence of IR Block filters, as they are rather distinct from IR Pass filters. We might also want to highlight Near IR, as used in with "Infrared film", vs Far/Deep IR. [Which I think might be strictly digital for all practical purposes.] - Answer's original wording partially hides that they're both classed as part of IR Photograph.
  
  – TheLuckless
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @TheLuckless Hopefully I integrated the information from your comment so that this is more clear now - thanks for the tip!
  
  – flolilo
  3 hours ago
  

  
  
  
  

 | 
show 1 more comment

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3

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 filters filter out all but certain wavelengths - the (near) IR wavelength of the filter. So basically, they are IR-pass filters, not IR-block filters. ^{Thanks @TheLuckless!}

As @Hueco states in his comment, IR filters will cut everything below a certain value. That value might be between 650 and 720nm - visible light, however, does go up to 750nm. ^{Thanks for clarifying that, Hueco!}

^{Typical result of using an IR filter. Some effort was put into post-production: The red and blue channels were swapped. CC-BY-SA 2.0:
Jannis}

---

What you think of (white heat source, everything else red-ish) is most probably a thermographic camera - they differ from regular cameras in a lot of ways, including lenses that are (typically) made out of Germanium.

^{Thermographic image. CC-BY-SA 3.0: Lutz Weidner}

share|improve this answer

edited 3 hours ago

answered 4 hours ago

floliloflolilo

5,28311838

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  It's important to note that most IR filters block somewhere between 650nm and 720nm and below. Important because visible light goes up to ~750nm.
  
  – Hueco
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Hueco Is there something you do not know better than me? :D In all seriousness, though: Will include that ASAP - just looking for some CC-BY-SA sample pictures for the respective categories.
  
  – flolilo
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  lol. I just happened to start looking at getting a camera converted by the folks at life pixel (many hours spent researching this topic). I'm just not sure if I want to send in the 60D or get a cheap used Rebel for the job. I do love my film, but when it comes to IR shooting, digital wins hands down
  
  – Hueco
  4 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  While rare to find in the general photography world as a standalone piece, it is also good to keep in mind the existence of IR Block filters, as they are rather distinct from IR Pass filters. We might also want to highlight Near IR, as used in with "Infrared film", vs Far/Deep IR. [Which I think might be strictly digital for all practical purposes.] - Answer's original wording partially hides that they're both classed as part of IR Photograph.
  
  – TheLuckless
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @TheLuckless Hopefully I integrated the information from your comment so that this is more clear now - thanks for the tip!
  
  – flolilo
  3 hours ago
  

  
  
  
  

 | 
show 1 more comment

3

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 filters filter out all but certain wavelengths - the (near) IR wavelength of the filter. So basically, they are IR-pass filters, not IR-block filters. ^{Thanks @TheLuckless!}

As @Hueco states in his comment, IR filters will cut everything below a certain value. That value might be between 650 and 720nm - visible light, however, does go up to 750nm. ^{Thanks for clarifying that, Hueco!}

^{Typical result of using an IR filter. Some effort was put into post-production: The red and blue channels were swapped. CC-BY-SA 2.0:
Jannis}

---

What you think of (white heat source, everything else red-ish) is most probably a thermographic camera - they differ from regular cameras in a lot of ways, including lenses that are (typically) made out of Germanium.

^{Thermographic image. CC-BY-SA 3.0: Lutz Weidner}

share|improve this answer

edited 3 hours ago

answered 4 hours ago

floliloflolilo

5,28311838

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  It's important to note that most IR filters block somewhere between 650nm and 720nm and below. Important because visible light goes up to ~750nm.
  
  – Hueco
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Hueco Is there something you do not know better than me? :D In all seriousness, though: Will include that ASAP - just looking for some CC-BY-SA sample pictures for the respective categories.
  
  – flolilo
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  lol. I just happened to start looking at getting a camera converted by the folks at life pixel (many hours spent researching this topic). I'm just not sure if I want to send in the 60D or get a cheap used Rebel for the job. I do love my film, but when it comes to IR shooting, digital wins hands down
  
  – Hueco
  4 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  While rare to find in the general photography world as a standalone piece, it is also good to keep in mind the existence of IR Block filters, as they are rather distinct from IR Pass filters. We might also want to highlight Near IR, as used in with "Infrared film", vs Far/Deep IR. [Which I think might be strictly digital for all practical purposes.] - Answer's original wording partially hides that they're both classed as part of IR Photograph.
  
  – TheLuckless
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @TheLuckless Hopefully I integrated the information from your comment so that this is more clear now - thanks for the tip!
  
  – flolilo
  3 hours ago
  

  
  
  
  

 | 
show 1 more comment

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 filters filter out all but certain wavelengths - the (near) IR wavelength of the filter. So basically, they are IR-pass filters, not IR-block filters. ^{Thanks @TheLuckless!}

As @Hueco states in his comment, IR filters will cut everything below a certain value. That value might be between 650 and 720nm - visible light, however, does go up to 750nm. ^{Thanks for clarifying that, Hueco!}

^{Typical result of using an IR filter. Some effort was put into post-production: The red and blue channels were swapped. CC-BY-SA 2.0:
Jannis}

---

What you think of (white heat source, everything else red-ish) is most probably a thermographic camera - they differ from regular cameras in a lot of ways, including lenses that are (typically) made out of Germanium.

^{Thermographic image. CC-BY-SA 3.0: Lutz Weidner}

share|improve this answer

edited 3 hours ago

answered 4 hours ago

floliloflolilo

5,28311838

share|improve this answer

edited 3 hours ago

answered 4 hours ago

floliloflolilo

5,28311838

answered 4 hours ago

floliloflolilo

5,28311838

answered 4 hours ago

floliloflolilo

5,28311838