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Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex

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'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

== Summary ==
The 8-50mm CS-mount zoom lens by Waveshare is designed to be used with the IMX477 12.3MP camera or the Raspberry Pi HQ Camera. It provides a zoom range of 8 to 50 mm at an aperture of F1.4 and a fixed back focal length (BFL) of 7.53 mm.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL18245 WSAL18245 – 8-50mm Zoom Lens for Raspberry Pi High Quality Camera]

== Technical overview ==
* Lens type: CS/CS lens, exclusively for use with the IMX477 12.3MP camera or the Raspberry Pi HQ Camera
* Zoom range: 8–50 mm
* Aperture: F1.4
* Sensor size compatibility: supports sensors in 1", 2/3" and 1/1.8" formats; the lens is a CS/CS lens
* Field of view (FoV): varies by sensor model – e.g., 1": 20.9° × 15.8°, 2/3": 14.4° × 10.8°, 1/1.8": 16.5° × 12.4°
* Back focal length (BFL): 7.53 mm
* Minimum object distance (M.O.D.): 0.20 m
* Dimensions: Φ40.00 × 68.30 mm
* Weight: 148 g
* Distortion: 0.35 %

'''Commands and examples – verify before use:'''
<syntaxhighlight lang="text">
import picamera
import picamera.array
import cv2
from time import sleep
import numpy as np
def test_gcamera():
cv2.namedWindow("img",0)
with picamera.PiCamera() as camera:
camera.resolution = (1920, 1080)
camera.awb_mode = 'off'
rg, bg = (1.8, 1.4)
camera.awb_gains = (rg, bg)
with picamera.array.PiRGBArray(camera) as output:
for foo in camera.capture_continuous(output, 'rgb', use_video_port=True):
img = cv2.cvtColor(output.array, cv2.COLOR_RGB2BGR)
cv2.imshow("img", img)
cv2.waitKey(1)
cv2.imwrite("test.jpg",img)
r, g, b = (np.mean(output.array[..., i]) for i in range(3))
if abs(r - g) > 2:
if r > g:
rg -= 0.1
else:
rg += 0.1
if abs(b - g) > 1:
if b > g:
bg -= 0.1
else:
bg += 0.1
camera.awb_gains = (rg, bg)
output.seek(0)
output.truncate(0)
if __name__=="__main__":
test_gcamera()
</syntaxhighlight>

== Notes and version constraints ==
* The source includes an OpenCV adjustment code snippet that was shared only as reference and has not been fully validated
* The stated fields of view (FoV) depend on the sensor model used; exact values must be confirmed against the actually installed sensor
* No information on price, availability, warranty, or certifications is present in the source material
* The compatibility statement is limited to the IMX477 12.3MP camera and the Raspberry Pi HQ Camera; other cameras are not explicitly mentioned

== Source and revision record ==
* [https://www.waveshare.com/wiki/8-50mm_Zoom_Lens_for_Pi 8-50mm Zoom Lens for Pi - Waveshare Wiki]
* Source revision: 84351
* Captured: 2026-09-01T03:16:47+00:00
* SHA-256: <code>360442bd82be21a2268fd04a1cef8e0088ecb77f80b8ac5b98cbee20aaca01ba</code>

WSAL18245 – 8-50mm Zoom Lens for Pi/en - Versionsgeschichte

JWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex