On Wednesday
I posted some screen shots and commentary about how the 0906 appears to have bit rate related image deterioration issues when running both the front and rear cameras. The VBR bit rate on both channels was approximately 12 Mbit/s in those images.
So yesterday, I decided to disconnect the rear camera and try shooting at 60fps with a higher anticipated VBR bit rate to see what the results might be. Well, the results were pretty abysmal.
Note that the bit rate here is 27.25 Mbit/s which should be plenty for good image capture, except that the leaves in the trees and red flowers on the quince bushes are rendered quite poorly. Focus is not great either.
This was a cool day with the ambient temperature just below 60º Fahrenheit. At this point I had only been driving for less than four minutes and the GPS had not acquired data yet. The camera showed a temp of 43º C when I departed.
Here some 26 minutes later the bit rate drops to 20.17 Mbits/s and focus has deteriorated further. Not sure exactly when the camera picked up GPS but here the data is shown stamped on the image.
Here it is now after 8 PM. The camera's low light performance is outstanding as the video appears much brighter than real world conditions at that time of day, especially under a canopy of trees.
Earlier in the day I stopped to change to 30 fps just to see what the differences might be. Note that the bit rate drops to 14.84 Mbit/s.
The primary thing to note here that the camera has gone seriously out of focus on both sides of the FOV, especially noticeable on the lower corners. I had been driving for about an hour.
Meanwhile, I am still running my SG9665GC and three Mobius cameras the whole time. They started out being powered via 12V adapters but when I arrived at my destination I switched all four cameras to power banks and left them running on the banks for the rest of the day so at this point they had been operating non-stop for about five hours. Video was tack-sharp as always.