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Pentax GPS Unit O-GPS1 Hotshoe Mounted Accessory GPS Unit for Pentax K-5, K-r, 645D

by Pentax
4.5 out of 5 stars 19 customer reviews
| 9 answered questions

List Price: $249.95
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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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$170.95 & FREE Shipping. Details In Stock. Sold by beelinesales and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

  • Pentax GPS Unit O-GPS1 Hotshoe Mounted Accessory GPS Unit for Pentax K-5, K-r, 645D
  • +
  • IR Wireless Remote Control for PENTAX Q, PENTAX DSLR (645D, K-5 II, K-5 II s, K-50, K-30, K-500, X-5, K-m, K-r, K-x, K-01, K-5, K-7, K10D, K20D, K100D, K110D, K200D, K2000) *ist (D, DL, DL2, DS, DS2) + Premium MagicFiber Microfiber Lens Cleaning Cloth
Total price: $178.94
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Technical Details


Product Description

Geotag Images For Location Information On Popular Photo Sharing Websites; Charts The Progress Of A Hike, Bike Or Boating Trip With Interval Position Tracking; Separate, Efficient Power Source Does Not Drain Camera'S Battery; Supports Terrestrial-Based Waas For Highly Accurate Positioning; Electronic Compass Function Assists While Hiking Or Camping

Product Details

  • Product Dimensions: 2.3 x 1.9 x 1.3 inches ; 2.1 ounces
  • Shipping Weight: 5.3 ounces (View shipping rates and policies)
  • ASIN: B0054YKVBK
  • California residents: Click here for Proposition 65 warning.
  • Item model number: GPS Unit 0-GPS1
  • Batteries 1 AAA batteries required.
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (19 customer reviews)
  • Amazon Best Sellers Rank:
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
  • Date first available at Amazon.com: July 3, 2011

Customer Reviews

Top Customer Reviews

Verified Purchase
I like to know exactly where I took my pictures as I mainly take landscape shots. With this attached, I get the exact location, the altitude, and the direction I was facing when the shot was taken, recorded and attached directly to the photo. So far, it seems to be right on or at least as accurate as the pixel resolution.

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.
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Verified Purchase
I bought a Pentax K-30 for my more rugged outdoor photography sessions. I don't typically need a flash, so I leave the GPS unit attached all the time. My camera still fits into my LowePro 100 Slingbag (with no extended camera battery attached). HEre is a quick review of the O-GPS1

COMPATIBILITY
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.

FUNCTIONALITY
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.
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Verified Purchase
I absolutely love the Astrotracer function. It is something that makes Pentax stand out from the rest. To be able to trace the Milky Way for more than 30 seconds (if using a Wideangle Lens) therefore reducing the ISO, makes a HUGE difference in the quality of the images. It is sometimes difficult to perform the precise calibration, but i have found that even without it the trace function works if keeping the trace time low (eg. 1 minute even if the camera states 5 minutes)
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The K-3 camera body does not support the Pentax GPS' simple navigation that existed in the K-5 (destination manager option gone from menu).

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).
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Verified Purchase
I am happy to report that I have been using this GPS pod mounted atop the flash shoe of my Pentax K-30 camera for some time now. It is great for geotagging your pictures. It powers up immediately, and usually within ten or fifteen seconds the display shows that satellites have been acquired. The single AAA battery seems to last quite awhile, but don't forget a spare, because once it quits from low battery, it won't power up long enough to be useful again. And, even though the K-30 is weather-sealed, and this unit is too, you aren't likely to get a reliable satellite signal through thick clouds, so leave it home on rainy days. The mount to the flash shoe locks on quite nicely, but if you like to hike with a camera around your neck, you will not want to leave it on the camera (maybe geotag the summit of your hike, and take it back off). It looks like it would take quite a hard bump to damage it, but I'm not taking chances. Great little accessory for the Pentax K-r, K-5 and K-30, which support GPS.
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Pentax GPS Unit O-GPS1 Hotshoe Mounted Accessory GPS Unit for Pentax K-5, K-r, 645D
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