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Only drop frames when setting min exposure time

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jaknapper 2026-03-16 15:01:10 +00:00
parent 3b84c266b4
commit a11d46777f
1 changed files with 3 additions and 5 deletions
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8
src/openflexure_microscope_server/things/camera/picamera_recalibrate_utils.py
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@ -241,6 +241,9 @@ def _set_minimum_exposure(camera: Picamera2, sensor_info: SensorInfo) -> None:
# to the minimum possible, which is ~8us for PiCamera v2
camera.set_controls({"AeEnable": False, "AnalogueGain": 1, "ExposureTime": 1})
time.sleep(sensor_info.long_pause)
# Flush stale frames
for _ in range(2):
r = camera.capture_metadata()
def _test_exposure_settings(camera: Picamera2, percentile: float) -> _ExposureTest:
@ -253,11 +256,6 @@ def _test_exposure_settings(camera: Picamera2, percentile: float) -> _ExposureTe
percentile (which will be compared to the target), as well as
the camera's shutter and gain values.
"""
# Flush stale frames
for _ in range(2):
r = camera.capture_request()
r.release()
# A single request, to ensure metadata matches frame
request = camera.capture_request()
try: