25mm Telephoto Lens for Pi

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Lens for Raspberry Pi
25mm Telephoto Lens for Pi
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Relate User guides

FAQ

 Answer:
*In different environments, the white balance effect may not be normal. Users can adjust the parameters according to the actual usage.
  • The following OpenCV adjustment code is for reference only. (The code is shared by RPi Camera (G) users)
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()
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Specification of Lens

Lens 6mm-Wide-Angle-Lens-for-Pi-1.jpg
6mm Wide Angle Lens
16mm-Telephoto-Lens-for-Pi-1.jpg
16mm Telephoto Lens
25mm-Telephoto-Lens-for-Pi-1.jpg
25mm Telephoto Lens
35mm-Telephoto-Lens-for-Pi-1.jpg
35mm Telephoto Lens
8-50mm-Zoom-Lens-for-Pi-1.jpg
8-50mm Zoom Lens
F/No 1/2" 1" 2/3" 1" 1/2.3"
Aperture F1.2 F1.4-16 F1.4-16 F1.7-16 F1.4
Connector CS-mount C-mount
FoV 63° 1″ 44.6° × 33.6°
2/3″ 30.0° × 23.2°
1/1.8″ 24.7° × 18.6°
1/2″ 21.8° ×16.4°
2/3" 20.2°×15.1°
1/1.8″ 16.5°×12.4°
1/2″ 14.5°×10.5°
1″ 20.9°×15.8°
2/3″ 14.4°×10.8°
1/2″ 10.5°×7.9°
45°-5.35°
BFL 7.53mm 17.53mm
TTL - 67.53mm -
Distortion - 1″(-0.7%)
1/2″(-0.5%)
1/3″(-0.15%)
0.05% 0.35% -
M.O.D. 0.20m 0.20m 0.25m 0.30m 0.20m
Dimenstion Φ30.00 × 34.00mm Φ39.00 × 50.00mm Φ34.00×34.00mm Φ35.00×34.00mm Φ40.00×68.30mm
Aperature Adjustment Manual
Weight 53g 133.7g 82g 78g 148g