HP Photosmart M417

A small 5 megapixel camera from Hewlett Packard. Zoomlens 6.25 to 17.25 mm (though it advertises a 3x zoom). The sensor is a factor 6.02 smaller than SLR film Lensparameters:

focallength	a	b	c
6.25 mm	+0.00000	-0.01837	+0.00000
7.83 mm	0	-0.00611	0
9.37 mm	0	-0.00523	0
11.63 mm	0	-0.00173	0
13.97 mm	0	-0.00074	0
17.25 mm	0	-0.00054	0