Field of View

'Alopeke and Zorro have two sets of optics which allow selecting between "Speckle" mode and "Wide-Field" mode. Both modes slightly underfill the detector resulting in circular fields-of-view.

The diameter of the unvignetted wide-field is ~35" (~60" diameter with vignetting). See the vignetting maps in the following table where contours have been overplotted at 10% vignetting intervals, and the green box indicates the size of the 512x512 ROI.

	Speckle		Wide-Field
Field of View	6.7"		60"
Camera	Blue	Red	Blue	Red
'Alopeke Pixel Size	0.00992"	0.01095"	~0.0725"
Zorro Pixel Size	0.00991"	0.01093"	~0.0725"
'Alopeke Vignetting
Zorro Vignetting