New Polaroid i2 camera giving .2m triangle error

dreborn · Sep 21, 2023

hi! for some reason my new polaroid i2 is giving me an error showing a triangle and <0.2m and won't take a shot in auto mode (or any other mode). i am not covering the lens and my subject is not close. so no idea what's going on.

any ideas? thanks!

rcphoto · Sep 21, 2023

Since it's new, I'd call the company or return it to where you bought it. That's a pretty pricey polaroid to be DOA.

dreborn · Sep 21, 2023

i agree! it's fairly frustrating. i submitted to polaroid support hopefully ill get a response soon.

Donald Qualls · Sep 22, 2023

Doesn't have a protective film over the Lidar transducer, does it?

dreborn · Sep 22, 2023

Donald Qualls said:
Doesn't have a protective film over the Lidar transducer, does it?

That was my first thought and unless I’m super silly I can’t find any plastic on any other the sensors

Donald Qualls · Sep 22, 2023

dreborn said:
unless I’m super silly I can’t find any plastic on any other the sensors

Well, it was worth checking. Could also just be a defective part. To Lidar, "too close" means effectively zero return time (there and back comes to about 2 nanoseconds per foot, or 6-ish per meter).

Nicholas Lindan · Sep 22, 2023

Donald Qualls said:
there and back comes to about 2 nanoseconds per foot

That's a very useful - and easy to remember - value for the speed of light: 1 nS/ft. I've been championing the value to the horror of physicists everywhere for some time now.

3 x 10 ^ what-the-hell km/sec, or is it m/sec ... I can't remember. 1 nS/ft - now that sticks in my head and is really useful as most earth-bound things are in the feet range of dimension.

If you aren't working in optics or photonics this is all irrelevantly geeky.

Bushcat · Sep 24, 2023

Nicholas Lindan said:
That's a very useful - and easy to remember - value for the speed of light: 1 nS/ft. I've been championing the value to the horror of physicists everywhere for some time now.

3 x 10 ^ what-the-hell km/sec, or is it m/sec ... I can't remember. 1 nS/ft - now that sticks in my head and is really useful as most earth-bound things are in the feet range of dimension.

If you aren't working in optics or photonics this is all irrelevantly geeky.

Circuit boards, too: hence the meanders on motherboards to make sure all the bits you just sent in parallel arrive simultaneously at their destination. Here's an animated GIF showing design software helping with the calculations. https://www.electronics-lab.com/wp-content/uploads/2016/07/MeanderEagle.gif

New Polaroid i2 camera giving .2m triangle error

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