# openmv4 H7 PLUS Measure the distance with ov5640，change framesize=sensor.FHD，memory errors！

OpenMV Boards
9

when sensor.set_framesize(sensor.FHD) ，i get the photo:

image
image1920×1080 215 KB

when sensor.set_framesize(sensor.QVGA) ，i get the photo:
image
image865×487 139 KB

please not that white line of blobs.i find the recogenize of QVGA better than FHD. is it right?