mchepp - thanks for that.
My next task is to work out, or find out, exactly how much recording time is required per practice session. My golf ignorance suggests that it would average out at about two hours and as the GOLFCAMERA-01 need not be switched to RECORD ( by remote RF control ) until a few seconds before the actual club swing takes place then perhaps one hour of actual recording time is all that is needed.
The current conception of the GOLFCAM-01 is raw 12 -b per pixel at 640 X 512 @ 300 IPS - 7.28 seconds/GB - this gives us 15.5 minutes of stored raw data on a proposed 128 GB of storage media. To obtain a longer recording time we then add H.264 algorithm compression. The ratio of the H.264 now depends on how much recording time we want and how much reduction in quality we can accept due to compression. A H.264 ratio of 4:1 would give us the one hour.
Any advice from anybody?
For me, even for a long practice session I may only have 3-5 mins of recording (maximum). In a usual session I may only come away with 10-20s of recording. I may take 10-15 different clips (up to 30 seconds in length) but will usually delete these after watching and only keep 1 or 2 pairs of clips (by pair I mean a face on and down the line view of the swing) to download to my PC for post analysis. When I have a lesson my instructor usually only takes between 1 and 4 clips (all being less than 10 seconds) and then we will go and copy to his computer to analyse. So IMO you don't need to worry if you only have 10-20 mins of recording ability on a 32gb or 64gb SD card, that is ample.