The popular PTZ term in IP camera is widely overused for devices that only do Pan and Tilt, but not (Optical) Zoom.True PTZ cameras are normally priced from 200€ and up but there's an exception now.
If you browse on eBay for "PTZ IP Camera", you'll find in the middle of the cheapest, a newcomer called Dericam M801W, just below €80.-The box contains the usual stuff: 1 camera, 1 antenna, 1 CD, 1 color printed manual, 1 flat rollback RJ45 cable and a mounting bracket. It is interesting to note that you can mount the camera on a wall/ceiling without this addition thanks to the 2 holes already present on the base.
While the casing is different, it is comparable in size to the traditional form factor used by most other competitors. The microphone returns a correct sound quality and the speaker is slightly better than I expected, but the audio-out connector at the back is there for a reason. It would be nice to see some buffer control in the future to reduce the feedback effect when both microphone and speakers are in use.
The presence of the IO Alarm connector seems to denote a hardware platform similar to the FI8908W (or M501W from Dericam), but issuing a "get_params.cgi" returns variables such as alarm_msn and mail_tls which are normally only used with the newer hardware platform like FI8918W, so I have to check that point with Dericam.
The web interface will feel familiar to anybody who owns an IP Camera already, the main difference being the zoom+ and zoom- buttons to control the vari-focal zoom lens.
Varifocal 3x Optical Zoom
I think that having an optical zoom on a traditional IP Camera actually makes sense for the following reasons:
- It balances the drawback of the typicaly low resolution (300K pixels, VGA).
- It helps to focus the motion alarm on a portion of the room. You could, for instance, keep it zoomed on a doorway to allow a more accurate identification of potential visitors.
- You can also more easily consider placing the camera further away and out of reach.
Several Pan and Tilt positions can be saved as presets. I just regret that the zoom position is not part of it. According to Dericam, it's in project.
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| The picture quality here is affected by the GIF format compression |
This is very handy as all the tricks gathered on this blog will also apply to Dericam: FAQ for IP Cameras & Shortcuts to some IP Camera functions
A CGI command will actually be necessary to work around a little bug: Change to the PTZ option "go to center on boot" does not get saved from the WebUI, so the camera always rotate on reboot.
The solution is to submit the following command from the url bar:
http://[ipcam]/set_misc.cgi?ptz_center_onstart=0
It turns out to be a good surprise in comparison with the classic and ugly Super Client usually bundled with most models. Once you know that the initial application login is "admin" with no password, and that you need to create a group first (There's a manual provided and maybe one day I'll read it...), the rest is quite straightforward. Cameras on the LAN are all detected and you just need to set their respective credentials to start viewing.
This universal IP Camera client takes control of everything, and even can access the settings of each device with a more convenient interface than the WebUI. Setting the Alarm schedule, for instance, is much easier as you can drag over the time table instead of clicking every single case one by one...
Third-Party application support:
Of course, the applications listed in Third-Party software for IP Cameras are compatible, since this model shares the same CGI command set as the Foscam cameras. Several fully support the M801W zoom function, like IP Cam Viewer for Android or Live Cams for iPhone. For the others you can simply pick a Foscam model (but then with no Zoom control).
Several look-alikes already:
Other manufacturers are using the same casing even though not offering a Zoom function: An example of this is SKU #50181 from DealExtreme. Instead, it comes with a µSD card slot that the M801W doesn't have. You'll have to decide for yourself which feature is important for you.
Personally, I have security concerns with local storage: If you rely on the camera snapshots in case of intrusion, then these pictures should be stored away in a safe location (NAS or web FTP), so if the camera get stolen, the pictures remain!
Technical support: Good news! There is actually someone behind tech@dericam.com and that's how I could obtain some extra information, like their CGI SDK reference manual.
Dericam also confirmed that updates are to be expected in the coming months and should be available via email requests. Thanks to Denny for providing me with this information.
Conclusion:
If the Z in PTZ makes any sense for you and you're on a budget, this camera is a sensible choice.
Quick Start Disk (~12MB) : Download + mirror
See also:
- Dericam M801W page
- Live demo of M801W
- WeatherProof (IP66) outdoor equivalent: M601W
- Live demo of M601W