![PENTAX O-GPS1 A handy GPS unit for digital SLR cameras, offering innovative features for effortless tracking and photographing of celestial bodies | RICOH IMAGING PENTAX O-GPS1 A handy GPS unit for digital SLR cameras, offering innovative features for effortless tracking and photographing of celestial bodies | RICOH IMAGING](https://www.ricoh-imaging.co.jp/english/news/2011/press-image/201107-01b.jpg)
PENTAX O-GPS1 A handy GPS unit for digital SLR cameras, offering innovative features for effortless tracking and photographing of celestial bodies | RICOH IMAGING
![Amazon.com : PENTAX O-GPS2 Handy GPS Unit with ASTROTRACER, Simple Navigation, Electronic Compass. Simplified Weather-Resistant Construction (30364) : Electronics Amazon.com : PENTAX O-GPS2 Handy GPS Unit with ASTROTRACER, Simple Navigation, Electronic Compass. Simplified Weather-Resistant Construction (30364) : Electronics](https://m.media-amazon.com/images/I/71P7WHdnCQL.jpg)
Amazon.com : PENTAX O-GPS2 Handy GPS Unit with ASTROTRACER, Simple Navigation, Electronic Compass. Simplified Weather-Resistant Construction (30364) : Electronics
![The Astrotracer (O-GPS1) works well with a 300mm lens :): Pentax SLR Talk Forum: Digital Photography Review The Astrotracer (O-GPS1) works well with a 300mm lens :): Pentax SLR Talk Forum: Digital Photography Review](https://3.img-dpreview.com/files/g/TS560x560~3054416.jpg)