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Pentax GPS Unit O-GPS1 Hotshoe Mounted Accessory GPS Unit for Pentax K-5, K-r, 645D
|Price:||$170.95 & FREE Shipping. Details|
|You Save:||$79.00 (32%)|
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- Geotag your images for location information on popular photo sharing websites
- Chart the progress of a hike, bike or boating trip with interval position tracking
- A separate, but efficient power source will not drain your camera's battery
- Supports terrestrial based WAAS for highly accurate positioning
- Electronic Compass function assists while hiking or camping
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|Package Height||1.65 x 4.8 x 7.17 inches|
|Shipping Weight||0.33 pounds|
Top Customer Reviews
For the compass, you only have to calibrate it once for the direction between magnetic north and true north to be corrected. If you move longitudinally a good distance, you might have to calibrate it again, but it's not something that needs to be done for every shot.
The GPS acquires the satellites fairly quickly. With an open sky on a dry winter day, I got the 3D (4 satellites) reading in under a minute. The EXIF data recorded that I actually had 8.
The instruction manual and waypoint (destination) instructions leave a bit to be desired. The default file let's you find your way to Pentax offices around the world that you're probably never going to use. However, the sample file does give you the format. There are two ways you can set up waypoints. One is to take the lat-long from a photo and save it to the file. You can save up to 40 waypoints in one file this way. You can have 3 separate waypoint files giving you a total of 120 waypoints if you want.
The second way is to manually edit one of the 3 files that you've saved to your SD card. All three files are in the \GPS\DATA1\ folder on your SD card. The files have to be the names GPS_DAT1.TXT, GPS_DAT2.TXT, or GPS_DAT3.TXT. The camera won't read any other names. The waypoints are in DD (Decimal Degrees) in the following format:
TITLE= GPSDATAPentax [you give this name when saving]
DATA= PENTAX_Itabashi JP, N35.765182, E139.Read more ›
I use it on a Pentax K-30. The K-30 does in fact support the Astrotracer feature on the GPS. The GPS menu on the K-30 is easy to access and use.
FORM FACTOR and AESTHETICS
The O-GPS1 has a fairly tight form factor. It adds about 2" to the top of the camera. It does take over your hot shoe and will block the built-in flash. The GPS unit itself is about 2"x2" square. It looks great on the camera. And has not been getting in my way at all.
As I mentioned, the Astrotracer feature does indeed work on the K-30. I have used this feature a couple of times and it has been great. This feature allows you to manually focus on a celestial object (not planets, though) and the mirror will adjust so that the exposure follows the star, etc. The main reason I bought the O=GPS1, though, is so that I can remember where in the world I took a shot. The location comes over in the metadata and has worked with both Lightroom and Aperture without any hiccups. The GPS on average has required a 3D satellite signal within about 90 seconds or less. Location info has been very accurate. You will need to recalibrate the GPS each time it dismounted (you do this by carefully turning the camera on each axis). The metadata even indicates which direction you were facing when you took the shot.
There is a built in compass as well as a trekking tool.Read more ›
Some K-5 users had complained that the LED on the GPS was too bright during astrophotography, the K-3 has a menu option to turn the LEDs off in astrotracer mode.
I am able to use flash while using the hot shoe mounted O-GPS1, (using the Pentax hot shoe adapter "FG" with 5 pin cable and F adapter, use popup flash and GPS mounted on flash bracket; or GPS on F adaptor over hotshoe, with 5 pin cable going to external flash).
I find it best to use only half the recommend max exposure time.; (for example, if the camera says I can take a 2 minute exposure, I find I get a tiny bit of star trails making the stars noticeably oval shaped, so I cut the exposure to 1 minutes to get round stars).
Most Recent Customer Reviews
FANTASTIC INTRO TO THE HEAVENS!
I bought this a few months back & whenever I walk out on to my beachside porch in the relatively light polluted area
of Pismo (Shell... Read more
It really is amazing the detail of the Milky Way you can capture with this GPS unit. And it shows your location with extreme accuracy, to within a meter or so. Read morePublished 5 months ago by Oliver Williamson Jr.
I like it and it delivers as expected with my K5. Max advertised exposure time depends on focal length and specific global position, etc, but I am generally comfortable with... Read morePublished 6 months ago by mike o
Being a pentaxian of course I will love, but since I like to take hikes on weekends it always was a bummer to have to manually tag hundred of fotos for GPS location... Read morePublished 11 months ago by Marko Garcia
For bird shot with geotag, this is a bargain.
For home with kids shooting stars for their studies in astronomy, it is also good.
Works as expected. Read more
I have not been able to use this yet but am very impressed with what I hear it can do. I travel a lot internationally but often do not mark where I am and forget when it comes... Read morePublished on January 30, 2014 by gar-man