K
kino
Guest
Hi photo enthusiasts at getdpi!
I'm new here, although I have been reading this forum for a few months. It seems to be a great community all doing interesting photographic work. About two months ago I was finally able to get the GF1 with the 20mm and later added the 45-200. It has been really nice learning to take photos with this camera.
I now have a gig for an architecture firm to do some site documentations. One of the things that is important for this project is accurate GPS data to go along with the photos.
I researched a bit online and found the JOBO photoGPS unit which slides into the camera hot shoe. Some reviewers have complained that the unit is quite loose on other cameras, but on the GF1 it fits nicely.
The problem is that the photoGPS unit needs a flash fire signal to record the coordinates when the picture is taken. What this means is that the camera needs to be set to Forced Flash. Yet when this is done with the photoGPS attached the camera only allows for a maximum shutter speed of 1/160 sec. It is possible to use the Flash Slow shutter setting to allow for higher shutter speeds, but in this case the photoGPS doesn't always fire. I guess this is the case when the camera measures adequate light in the scene.
I read the thread here talking about the Flash sync limitation on the G series cameras and it seem that some hi-speed flashes let you use faster shutter speeds:
http://forum.getdpi.com/forum/showthread.php?t=10800
I can only see 4 workaround/solutions to this problem.
1 - Somehow upgrading the JOBO photoGPS to make the camera recognize it as a High Speed Flash Unit. There is only one center contact.
2 - A firmware upgrade to provide an option to disable the 1/160sec shutter limitation.
3 - Some other GPS logger. Any recommendations for a work flow that includes the GF1 and Mac?
4 - Remember to always push the manual location button when the camera doesn't fire the flash when the camera is set to Flash Slow shutter mode.
If anyone thinks of any other helpful ways to work around this problem, I would be very grateful.
Cheers
Jer
http://vimeo.com/kinomatic/videos
I'm new here, although I have been reading this forum for a few months. It seems to be a great community all doing interesting photographic work. About two months ago I was finally able to get the GF1 with the 20mm and later added the 45-200. It has been really nice learning to take photos with this camera.
I now have a gig for an architecture firm to do some site documentations. One of the things that is important for this project is accurate GPS data to go along with the photos.
I researched a bit online and found the JOBO photoGPS unit which slides into the camera hot shoe. Some reviewers have complained that the unit is quite loose on other cameras, but on the GF1 it fits nicely.
The problem is that the photoGPS unit needs a flash fire signal to record the coordinates when the picture is taken. What this means is that the camera needs to be set to Forced Flash. Yet when this is done with the photoGPS attached the camera only allows for a maximum shutter speed of 1/160 sec. It is possible to use the Flash Slow shutter setting to allow for higher shutter speeds, but in this case the photoGPS doesn't always fire. I guess this is the case when the camera measures adequate light in the scene.
I read the thread here talking about the Flash sync limitation on the G series cameras and it seem that some hi-speed flashes let you use faster shutter speeds:
http://forum.getdpi.com/forum/showthread.php?t=10800
I can only see 4 workaround/solutions to this problem.
1 - Somehow upgrading the JOBO photoGPS to make the camera recognize it as a High Speed Flash Unit. There is only one center contact.
2 - A firmware upgrade to provide an option to disable the 1/160sec shutter limitation.
3 - Some other GPS logger. Any recommendations for a work flow that includes the GF1 and Mac?
4 - Remember to always push the manual location button when the camera doesn't fire the flash when the camera is set to Flash Slow shutter mode.
If anyone thinks of any other helpful ways to work around this problem, I would be very grateful.
Cheers
Jer
http://vimeo.com/kinomatic/videos