I had the O-GPS1 and it can be a fussy little device. Precise calibration of the O-GPS1 works (usually) if preceded by the sacrifice of a chicken although occasionally a goat is required. It works better for wide focal length lenses (Milky Way shots) than anything else, and the actual tracking time is only a fraction of what the camera tells you is possible. Still, it was enough to get me excited about Astrophotography and I sold it to fund a more robust solution.
It is an ingenious device, but I understand why they didn't bother to add support for much earlier cameras. They want to encourage new sales. On Mon, Apr 21, 2014 at 10:14 AM, John Sessoms <[email protected]> wrote: > On 4/19/2014 7:13 PM, Darren Addy wrote: > >> Stephen Migol is still doing great astrophotography with the K10D and, >> looking at his other equipment, I'm sure he could upgrade if he wanted >> to: >> http://www.astrobin.com/users/smigol/ >> >> In short, I think the laws of supply & demand might make the K10D as >> popular, or more, than the later K20D - even though it is older and >> fewer megapixels. >> > > It would be helpful if that GPS thing that uses the sensor shift for > astro-tracing (is that the right word?) had been backwards compatible with > the K10D & K20D. > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. -- Photographers must learn not to be ashamed to have their photographs look like photographs. ~ Alfred Stieglitz -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

