IR filter removal from new RPi camera

[energyi]

Anyone successful in removing the IR filter from the new Raspberry Pi HQ Camera for Raspberry?

Trying to do some telescope usage. Thanks in advance for any successful discussions.

energyi

[trejan]

https://www.raspberrypi.org/documentati ... removal.md

[energyi]

Perfect, thanks!

[xkubazz]

Did anyone actually follow this procedure so far?

I'm wondering how tough is bare sensor's surface and if cleaning it is possible without incurring damage.I live in very dusty area and need to clean sensors in my cameras at least biweekly, even if I'm very careful while switching lenses.

[jamesh]

Did anyone actually follow this procedure so far?

I'm wondering how tough is bare sensor's surface and if cleaning it is possible without incurring damage.I live in very dusty area and need to clean sensors in my cameras at least biweekly, even if I'm very careful while switching lenses.

Air duster would be fine. Or add a clear cover to the sensor (OHP film is apparently good for that)

[cpixip]

well, I tried to follow the procedure but I hit a stop at the point

3) Lift up the board and place it down on a very clean surface.

of the procedure.

It seems that both of my HQCams have the main board glued boldly to the black metal housing. No reasonable amount of force allowed me to separate the board from the metal housing. How to proceed? Any ideas? Both cameras were purchased through offical resellers based in Germany.

[billgs]

My main board seemed to be firmly attached to the housing but
a small screwdriver placed as per the picture and gently rotated
was enough to part the two pieces.
[img]F:\DCIM\118_PANA\P1180133a.jpg
[/img]

Regarding protection of the sensor after filter removal, I measured
the filter to be 9x9x1.1 mm and I found that a near Cambridge
manufacturer of optical items offer an anti reflection coated
10x10x1.1 mm window for £6.60 inc vat. As might have been expected,
a one-off 9x9 modification of this, plus delivery, would be
expensive (about £50). 10 off prices woud be £9 plus delivery.
I won't be going this way.

I will try OHP film in the main housing

[billgs]

Repeat of my previous post with the missing picture.
My main board seemed to be firmly attached to the housing but
a small screwdriver placed as per the picture and gently rotated
was enough to part the two pieces.

[cpixip]

Repeat of my previous post with the missing picture.
My main board seemed to be firmly attached to the housing but
a small screwdriver placed as per the picture and gently rotated
was enough to part the two pieces.

- thank you very much. This did the trick!

IR filter HQCam.jpeg (40.32 KiB) Viewed 1641 times

Actually, very easy that way. I managed to get the IR-filter off without breaking it, so it might even turn out to be a reversible procedure. The screwdriver hint plus the place to apply it was very helpful. Thanks!

[andred14]

Repeat of my previous post with the missing picture.
My main board seemed to be firmly attached to the housing but
a small screwdriver placed as per the picture and gently rotated
was enough to part the two pieces.

- thank you very much. This did the trick!

IR filter HQCam.jpeg

Actually, very easy that way. I managed to get the IR-filter off without breaking it, so it might even turn out to be a reversible procedure. The screwdriver hint plus the place to apply it was very helpful. Thanks!

Nice work Do you think it would be possible to add a visible light filter on top of the sensor once the IR filter is removed? Hoping to do this and capture some high FPS night video using raspiraw

[dabateman]

Depending on your lens there is a lot of room there for many different options.

You can even tape a ZWB2 filter inside the stock unmodified camera to grab a UV image.

The HQ is not very sensitive to UV though. My full spectrum modified module can just barely see to 375nm. I am saddened by this. But the stock camera has nice UV/vis capabilities using just 365nm light sources. So some options.

For IR you will need to pop that CM500 IR blocking filter. But otherwise the camera can see 380nm to 700nm.

[zizumara]

Why remove the camera from the board? The filter is attached to the back of the lens assembly. I have a 12MP HQ camera from Arducam and I removed the IR filter by simply unscrewing the lens from the board, then prying the filter out of the lens assembly. The filter I removed looks just like the one in the picture posted by cpixip.