On Jun 2, 2011, at 6:30 PM, Larry Colen wrote:

>> "The O-GPS1offers the advanced PENTAX original Astrotracer function,* which 
>> works with the PENTAX  Shake Reduction (SR) system on select cameras for 
>> tracking and photographing celestial bodies. The unit calculates the 
>> movement of stars, planets, and other bodies using the latitude obtained 
>> from GPS data and the camera’s alignment data (horizontal and vertical 
>> inclinations and aspect) obtained from its magnetic and acceleration 
>> sensors.  Then, the unit shifts the camera’s image sensor in synchronization 
>> with the movement of the object(s).** As a result, stars and other bodies 
>> are captured as solid points rather than blurry streaks, even during 
>> extended exposures.  The unit also simplifies astrophotography by requiring 
>> only a tripod and eliminating the need for additional accessories such as an 
>> equatorial telescope."
> 
> That's absolutely brilliant, if it works.

My thoughts exactly.  What a great idea... but for a rather limited market.  
But if you can't use a flash with this thing attached, what else are you going 
to photograph at night?

Dave
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