PENTAX GPS Unit O-GPS2 [AstroTracer Compatible] for Easy Astronomical Tracking Photography. Weatherproof and Waterproof, Perfect for Astrophotography

GPS function allows you to easily record the location of your shooting location. When used with a compatible camera, the Astro Tracer function is useful for astronomical photography. Line navigation provides information on your destination. Electronic compass displays and records your shooting direction. Compatible models: 645Z, 645D, K-3 Mark III, KP, K-3, K-5II, K-5IIs, K-5, K-S2, K-S1, K-70, K-50, K-30, K-r, K-01