Just to be clear, it's a Toshiba, not Sony camera.
The camera does have a patrol mode, but I don't use it. Instead, I
use the camera api (all http gets) to move the camera to a specific
preset, wait for a few seconds for it to get into position, then take
the snapshot.
This way I know exactly which preset i'm dealing with and can assign
an appropriate caption. I thought that this approach would give me
the greatest flexibility. For example, I could have a routine that
figures out where in the sky the Sun is, and avoid presets that would
point the camera in that direction. With the patrol function, that's
not possible.
For the time being, I don't do anything fancy. I pretty much just
replicate a patrol type function with the additional feature of adding
a caption to the picture.
BTW, one of the things I learned while setting this up is that when
you set up your presets, you want to make sure and adjust the focus
manually. If you have it in autofocus when you define the preset,
that's what it remembers so when you go to that preset it takes much
longer for the camera to be ready for a snapshot. If the focus is set
manually then that's what it remembers and the snapshot can be taken
as soon as the camera gets into position.
Yes, the cost is pretty big. Fortunately, my website has a pretty big
fan base and they have generously donated to offset the cost. The
cameras are really for them, not me... I can just look out the window
or step outside ;-)
I looked at a lot of cameras, and for 22x optical zoom, 1280x960
resolution, and pretty good light sensitivity, this one seemed like
the most cost effective, thought there are so many out there that it's
hard to be sure. POE would have been a little more convenient, but
they seemed more expensive and it wasn't clear to me if it would also
power the environmental enclosure.
One of the other key criteria for my selection was the availability of
a documented api.
You can have a look at the difference between "standard" resolution
fixed position camera images and the ptzcamera images at
http://www.bigtreestech.com.
The images are not current because I'm in the midst of development and
transition to weewx.
joe