Raspberry Pi Camera

Introduction

• https://magazines-attachments.raspberrypi.org/books/full_pdfs/000/000/036/original/Camera-Guide.pdf?1590756684
• https://datasheets.raspberrypi.com/camera/raspberry-pi-camera-guide.pdf
• https://www.raspberrypi.com/documentation/computers/camera_software.html

Rpicam is based on libcamera rpicam-still

To a raw jpeg file rpicam-still -r -o path/to/file.jpg

Some settings:

• --timeout 0
• --shutter 100000 takes a 100 sec photo
• -r
• --encoding png
• -o path/to/file.jpg
• --gain 1 --awbgains 1,1 --immediate Automatic Exposure/Gain Control (AEC/AGC) and Auto White Balance (AWB). Skip the preview phase entirely with the immediate option

RPi camera rev 1.3

• https://raspberrypi.stackexchange.com/questions/81964/calculating-focal-length-of-raspberry-pi-camera
• https://datasheets.raspberrypi.com/camera/camera-module-3-schematics.pdf

Focal Length 3.60 mm.

The v1 camera is based on the Omnivision OV5647.

RPi Cam ver 2

• Size ~ 25 × 24 × 9 mm
• 8 MP, 1080p47, 1640 × 1232p41 and 640 × 480p206 / 3280 × 2464 pixels
• Sony IMX219
• Sensor area: 3.68 × 2.76 mm (4.6 mm diagonal); Pixel size 1.12 µm × 1.12 µm
• Depth of field: Approx 10 cm to ∞
• f = 3.04 mm
• H Fov 62.2 deg, v Fov 48.8

Darwings with measures: https://datasheets.raspberrypi.com/camera/camera-module-2-mechanical-drawing.pdf

M12 lenses recommendation: https://www.gaojiaoptotech.com

Spectroscope

https://github.com/leswright1977/PySpectrometer2?tab=readme-ov-file

• A CCTV Lens with Zoom (M12 Thread) (Search eBay for F1.6 zoom lens)