Pentax O-GPS1 GPS Module 39012 B&H Photo Video
The Astrotracer (O-GPS1) works well with a 300mm lens :): Pentax SLR Talk Forum: Digital Photography Review
Discussing real-world applications of the Pentax Astrotracer with Tim Little - Photofocus
Five easy steps to better Milky Way images with the Pentax K-1 Astrotracer - Photofocus
Ricoh announces O-GPS2 - the next generation GPS unit for Pentax DSLR cameras - Pentax Rumors
Pentax K-1 Mark II Astrophotography Review – Lonely Speck
Used Pentax K-3 II Digital SLR Camera Body, 24.35MP, Full HD 1080p Video, GPS, AstroTracer 16160
PENTAX: The choice for astrophotography / explore | RICOH IMAGING
PENTAX: The choice for astrophotography / explore | RICOH IMAGING
Pentax Astrotracer Guide and GPS Feature Comparison - Articles and Tips | PentaxForums.com (Mobile)
PENTAX: The choice for astrophotography / explore | RICOH IMAGING
Pentax K-1 Mark II Astrophotography Review – Lonely Speck
Pentax astrotracer first test | krzyc sur | Flickr
New Pentax K-3 Mark III Update Improves Astro Photos Without GPS | PetaPixel
Firmware for Pentax K-5 resolves Astrotracer issue
Pentax K-1 Mark II Astrophotography Review – Lonely Speck
DSLR Astophotography: Astrotracer Images with Pentax GPS Unit O-GPS1
Amazon.com : Pentax GPS Unit O-GPS1 Hotshoe Mounted Accessory GPS Unit for Pentax K-5, K-r, 645D : Flash Shoe Mounts : Electronics
New Pentax K-3 Mark III Update Improves Astro Photos Without GPS | PetaPixel
Fun with Astrotracer: Pentax SLR Talk Forum: Digital Photography Review
PENTAX: The choice for astrophotography / explore | RICOH IMAGING
Getting Started with Astrophotography and the Pentax Astrotracer - Articles and Tips | PentaxForums.com (Mobile)
PENTAX GPS Unit O-GPS1
