November 27, 2014, 10:24:55 PM

Author Topic: Infra red filter - question  (Read 6305 times)

g2

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Re: Infra red filter - question
« Reply #15 on: May 18, 2013, 07:20:13 AM »
Are there any updated resources of what lens to use and what not?

There ya go :)
http://kolarivision.com/lenshotspot.html

I have no affiliation with them, had done a lot or research before getting my camera converted and the link was in my bookmarks. I got a 600D converted to full spectrum by lifepixel, very happy with their service.

Cheers,
g2

p.s. Not sure how accurate their list is but it is elaborate.

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Re: Infra red filter - question
« Reply #15 on: May 18, 2013, 07:20:13 AM »

g2

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Re: Infra red filter - question
« Reply #16 on: May 18, 2013, 07:37:21 AM »
Full spectrum is another option if you are considering a conversion. It allows you to shoot UV, IR or visible light via the use of external filters. I took this route.

Just to show an example. same scene in Visible light and IR 600nm.

Visible light (UV/IR cut filter)



IR 600nm (Tiffen red filter IIRC)


g2
 

candyman

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Re: Infra red filter - question
« Reply #17 on: May 18, 2013, 08:57:31 AM »
Are there any updated resources of what lens to use and what not?

There ya go :)
http://kolarivision.com/lenshotspot.html

I have no affiliation with them, had done a lot or research before getting my camera converted and the link was in my bookmarks. I got a 600D converted to full spectrum by lifepixel, very happy with their service.

Cheers,
g2

p.s. Not sure how accurate their list is but it is elaborate.


Thanks for that!  :)

g2

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Re: Infra red filter - question
« Reply #18 on: May 20, 2013, 08:52:05 AM »
Are there any updated resources of what lens to use and what not?

There ya go :)
http://kolarivision.com/lenshotspot.html

I have no affiliation with them, had done a lot or research before getting my camera converted and the link was in my bookmarks. I got a 600D converted to full spectrum by lifepixel, very happy with their service.

Cheers,
g2

p.s. Not sure how accurate their list is but it is elaborate.


Thanks for that!  :)

No worries :)

gferdinandsen

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Re: Infra red filter - question
« Reply #19 on: May 20, 2013, 05:34:14 PM »
I had my 40D converted by LifePixel - they are great! One thing I ran up against pretty quickly, tho, is that a lot of lenses, in particular the 16-35 I was hoping to use for landscapes, have a nasty PITA "hot spot" of reduced exposure in the center of every shot [due to the way IR reflects inside the optics]. I'm currently looking at the Sigma 15mm to use on WA shots, since it is reportedly better. It would pay to research your current lenses before you commit to IR.

The 16-35mm is indeed not recommended for IR work. Here's a link on which lenses are suitable or not for IR photography: http://www.lensplay.com/lenses/lens_infra_red_IR.html


Many thanks for the lens list, that's great information.

Cheers.  :)
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gferdinandsen

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Re: Infra red filter - question
« Reply #20 on: May 20, 2013, 05:40:29 PM »
Another option to having an older DSLR converted by Lifepixel.  Is to check eBay for Lifepixel converted P&S.  Before I had D40 converted to 590nm, I bought a G9 conveted to the same cut-off for about $300 off ebay.  Once I was happy with the choice of wavelength cut-off, I just relisted the P&S back on EBay.
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ahab1372

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Re: Infra red filter - question
« Reply #21 on: May 20, 2013, 05:52:42 PM »

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Re: Infra red filter - question
« Reply #21 on: May 20, 2013, 05:52:42 PM »

wickidwombat

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Re: Infra red filter - question
« Reply #22 on: May 20, 2013, 08:09:00 PM »
I had my 40D converted by LifePixel - they are great! One thing I ran up against pretty quickly, tho, is that a lot of lenses, in particular the 16-35 I was hoping to use for landscapes, have a nasty PITA "hot spot" of reduced exposure in the center of every shot [due to the way IR reflects inside the optics]. I'm currently looking at the Sigma 15mm to use on WA shots, since it is reportedly better. It would pay to research your current lenses before you commit to IR.

The 16-35mm is indeed not recommended for IR work. Here's a link on which lenses are suitable or not for IR photography: http://www.lensplay.com/lenses/lens_infra_red_IR.html

Cheers.  :)


It seems to be a rather "old" list.
In the list the Canon 16-35mm is mentioned but not the MKII. Does it mean that the MKII does not have the hotspot problem?
I also do not see the Canon 24-105.
Are there any updated resources of what lens to use and what not?

the mk2 does have the problem as i've tried it :( its not good
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Re: Infra red filter - question
« Reply #23 on: May 20, 2013, 11:38:13 PM »
These lenses do not have hotspot's in my experiences.

24L
50L
135L
24-105L

wickidwombat

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Re: Infra red filter - question
« Reply #24 on: May 21, 2013, 12:32:32 AM »
the 50 f1.4 is just as bad as the 16-35 mk2 aswell :(
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shutterwideshut

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Re: Infra red filter - question
« Reply #25 on: June 04, 2013, 07:40:06 AM »
It seems to be a rather "old" list.
In the list the Canon 16-35mm is mentioned but not the MKII. Does it mean that the MKII does not have the hotspot problem?
I also do not see the Canon 24-105.
Are there any updated resources of what lens to use and what not?

Here's one updated link from Life Pixel I stumbled today that proves that the 16-35mm II has hot spots, indeed. This also includes the superb 24-70mm II.  :( http://www.lifepixel.com/lens-considerations

Cheers.
« Last Edit: June 04, 2013, 07:41:57 AM by shutterwideshut »
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candyman

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Re: Infra red filter - question
« Reply #26 on: June 04, 2013, 08:55:06 AM »
It seems to be a rather "old" list.
In the list the Canon 16-35mm is mentioned but not the MKII. Does it mean that the MKII does not have the hotspot problem?
I also do not see the Canon 24-105.
Are there any updated resources of what lens to use and what not?

Here's one updated link from Life Pixel I stumbled today that proves that the 16-35mm II has hot spots, indeed. This also includes the superb 24-70mm II.  :( http://www.lifepixel.com/lens-considerations

Cheers.

Thanks. Wow, even the 24-70 MKII.
What about the Tamron 24-70 VC ? I googled but could not find info yet. 

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Re: Infra red filter - question
« Reply #26 on: June 04, 2013, 08:55:06 AM »