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  1. david_horne_9964's Avatar
    I bought 4 IR filters with different cut-off wavelengths. This is my first quick test. These photos were taken at 10 AM on an overcast day in Southern California.
    .
    Please comment or Thank to keep me motivated to perform and post more testing of all sorts on the Nokia 1020.
    .
    Please see my other posts for more test results.
    .
    Thank you,
    Dave

    720-nm.jpg

    760-nm.jpg

    850-nm.jpg

    950-nm.jpg
    12-07-2014 12:44 PM
  2. Scienceguy Labs's Avatar
    That's really cool. I'm contemplating getting a used 1020 for exactly this purpose...to experiment with. :)
    david_horne_9964 likes this.
    12-07-2014 01:08 PM
  3. msirapian's Avatar
    As you have noticed, the 1020 lens is coated with an anti-IR filter. It creates that central hotspot.

    The only way to get rid of it, according to my experience, is to shoot in RAW, and then try to process as much as possible to remove the hotspot (you can't totally delete it).

    My exemples:

    La Tour Eiffel - Filtre IR by Massis__, on Flickr

    Viekijrvi (IR) by Massis__, on Flickr
    12-07-2014 01:21 PM
  4. david_horne_9964's Avatar
    Very nice msirapian !
    Last edited by david_horne_9964; 12-07-2014 at 09:38 PM. Reason: Forgot to identify member.
    12-07-2014 09:36 PM
  5. david_horne_9964's Avatar
    Thanks Scienceguy Labs. I noticed that with the 950 nm filter, the camera can't quite focus all the way to infinity. I believe a -1 or -2 diopter is required. I'll try that later.
    RumoredNow likes this.
    12-07-2014 09:42 PM
  6. Scienceguy Labs's Avatar
    Thanks Scienceguy Labs. I noticed that with the 950 nm filter, the camera can't quite focus all the way to infinity. I believe a -1 or -2 diopter is required. I'll try that later.
    If you do, please post your results. I'm curious to see what your results are with the diopter adjustments. I'm no camera expert...just a beginning hobbyist, so I like seeing results from experienced photographers.
    12-08-2014 08:02 PM
  7. krisskringle's Avatar
    Hey guys. Thanks for info.
    I'm trying to get rid of IR filter inside of 1020 camera module.
    How serious will that hot spot if I use 665nm IR filter if I just keep my IR filter?
    01-16-2017 06:09 AM

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