RPi NoIR V2 Camera vs UV-IR CUT vs 720nm Infrared (Hoya R72) filter

After the post "Compare Pi Camera NoIR v1 vs V2", many people ask me about the filters I used. This post show the effect of the filter UV-IR CUT and Hoya R72 used on NoIR V2/Raspberry Pi 3.

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Filter test on Pi NoIR v1: UV-IR CUT/Hoya R72 (and align focus for infrared)

Filter test on Pi NoIR v1 on Raspberry Pi 2 - UV-IR CUT/Hoya R72(720nm Infrared):

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Focus alignment on Pi NoIR v1:
Compare with my old post of Pi NoIR v1 with IR filter:
- Pi NoIR photo samples (without and with Hoya R72 filter)
- Test Pi NoIR Camera Module with Infrared filter, 680nm vs 720nm
- by Pi NoIR Camera Module + IR 680nm filter

It can be noted that the image become little bit blur (out focus) when using with IR filter. It's normal and reasonable because the lens cannot focus the whole range cover visible light and infrared. So I tried to align the focus to make IR image more clear.

(*Doing so have risk to damage the lens, so NOT recommended!)

The photos shown in this post taken after aligned.

The the following photos, the white marked on the lens indicate the original position and after aligned.

original position

aligned position

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Related:
- Filter test on Pi NoIR Camera 2, IR 680nm, 720nm, 850nm, and UV-IR CUT

Raspberry Pi NoIR Camera V2 Timelapse

Raspberry Pi NoIR Camera V2 Timelapse:


Next;
- RPi Camera Module NoIR V2 Timelapse - 2016-05-08

Filter test on Pi NoIR Camera 2, IR 680nm, 720nm, 850nm, and UV-IR CUT

Test various filters' effect used on Raspberry Pi NoIR Camera V2, include IR 680nm, 720nm, 850nm, and UV-IR CUT filters.

Filters used in this test:
- Zomei IR 680nm
- Hoya R72 IR 720nm
- Rocolax IR 850nm
- Rocolax UV-IR CUT Filter

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Remark@2016-05-14:
If you mount the filter like me, suggest NOT to use transparent case. MAY be light enter from case to filter, reflect back to camera.

This photo show light reflection on UV-IR CUT filter on transparent case.

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Next:
- Raspberry Pi NoIR Camera V2 Timelapse

Remark:
In my observation, if use IR filters on Pi Camera Modula, it will be little bit blur (out focus). It's normal and reasonable because the lens cannot focus the whole range cover visible light and infrared. I tried to align focus of Pi NoIR v1:
- Filter test on Pi NoIR v1 - UV-IR CUT/Hoya R72(720nm Infrared)

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