Pentax O-GPS1 GPS Unit

Sample Astrophotography

Note: I am not an experienced astrophotographer and live near to Toronto, Ontario where there is a lot of light pollution. I was able to take some photos from my backyard and others in a lake front park where looking out to the lake was fairly dark but turning around 180 degrees put strong street lights in your face.

The two lenses I used were my Tamron 28-300mm F3.5-6.3 and an old Lentar 400mm M42.

At this point I can describe Pentax backwards-compatibility in two words: it works! (In this case we have a new camera with a very new O-GPS1 unit using a very old lens)

Below are some sample star photographs taken with the help of the O-GPS1.  Click on any photo to enlarge it.

General sky view (note glow of light pollution)
(150 second exposure, f5.6, 28mm, 1600 iso)

Nebula in Orion
(15 second exposure, f6.3, 250mm, 1600 iso)

Same view as above without Astrotracer - it does make a difference
(12 second exposure, f6.3, 250mm, 1600 iso)

Nebula in Orion Again
(20 second exposure, 400mm, 1600 iso)

Save as above without Astrotracer
(20 second exposure, 400mm, 1600 iso)