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#41
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New Sony GPS Camera Accessory
"Dave Martindale" wrote in message ... Ron Hunter writes: The GPS described doesn't have a display, which accounts for the lower price, and the long battery life. It isn't a full-fledged GPS at all, just a way of recording time and position stamps, which many 'GPS enabled' cell phones do for even less. In short, I am not impressed by either the price, or the capabilities. GPS enabled cell phones generally do their thing with the aid of data provided by the cell sites they are normally listening to. Go someplace without cellular coverage (or coverage that your phone is not compatible with) and you'll get no position data at all. On the other hand, this seems to be a full-fledged GPS receiver, in the sense that it's capable of determining its position without outside help. That makes it cost more, but worth more, than a cell phone's GPS functions. It's still not a consumer GPS unit with display and user interface; it's just a position logger. But that's exactly what is needed to work with an arbitrary digital camera. (It would be even nicer to have a camera with integrated GPS receiver). Dave I seem to have missed something here. Does the GPS info attached to the photo give a degrees coordinate or a an actual location? That is, does it include something like an address? To do so presumably it would need a built in map as well in. Otherwise it will give you what my navigation device does, and that is a set of lat/ lon coordinates which to my mind is not going to be all that clear to the average user. Bill |
#42
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New Sony GPS Camera Accessory
"Bill Again" I seem to have missed something here. Does the GPS info attached to the photo give a degrees coordinate or a an actual location? That is, does it include something like an address? Probably not. To do so presumably it would need a built in map as well in. Right Otherwise it will give you what my navigation device does, and that is a set of lat/ lon coordinates which to my mind is not going to be all that clear to the average user. Unless you are a perfect geography geek, you're right, it doesn't make sense even for the more advanced user. The real advantage of recording geocoordinates in the exif is the possibility of using a mapping software (such as google maps) to plot where the photos were taken Cheers Padu |
#43
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New Sony GPS Camera Accessory
Padu wrote:
"Bill Again" I seem to have missed something here. Does the GPS info attached to the photo give a degrees coordinate or a an actual location? That is, does it include something like an address? Probably not. To do so presumably it would need a built in map as well in. Right Otherwise it will give you what my navigation device does, and that is a set of lat/ lon coordinates which to my mind is not going to be all that clear to the average user. Unless you are a perfect geography geek, you're right, it doesn't make sense even for the more advanced user. The real advantage of recording geocoordinates in the exif is the possibility of using a mapping software (such as google maps) to plot where the photos were taken Cheers Padu Note the Photoshop elements 5.0 has a feature that will do exactly that if the geocoordinates are available, and even group your photos by location, and slideshow those from nearby. Nice feature. Now all I need is software to read my tracklog and apply it to the appropriate photos.... |
#44
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New Sony GPS Camera Accessory
See "The importance of place - GPS and photography",
http://www.microsoft.com/windowsxp/u...photo/gps.mspx, for a camera with optional GPS receiver that orientates to the direction of the image. Of course this will add 300.00 USD to 500.00 USD to your camera. The following is an example of EXIF GPS tags and values: [GPS] GPS Version ID = Version 2.2 GPS Latitude Ref = North latitude GPS Latitude = 39°54'56" GPS Longitude Ref = East longitude GPS Longitude = 116°23'27" GPS Time Stamp = 18:07:37 UTC GPS Date Stamp = 2003-11-23 UTC For more EXIF GPS tags see: http://www.sno.phy.queensu.ca/~phil/...Names/GPS.html Bill Again wrote: "Dave Martindale" wrote in message ... Ron Hunter writes: The GPS described doesn't have a display, which accounts for the lower price, and the long battery life. It isn't a full-fledged GPS at all, just a way of recording time and position stamps, which many 'GPS enabled' cell phones do for even less. In short, I am not impressed by either the price, or the capabilities. GPS enabled cell phones generally do their thing with the aid of data provided by the cell sites they are normally listening to. Go someplace without cellular coverage (or coverage that your phone is not compatible with) and you'll get no position data at all. On the other hand, this seems to be a full-fledged GPS receiver, in the sense that it's capable of determining its position without outside help. That makes it cost more, but worth more, than a cell phone's GPS functions. It's still not a consumer GPS unit with display and user interface; it's just a position logger. But that's exactly what is needed to work with an arbitrary digital camera. (It would be even nicer to have a camera with integrated GPS receiver). Dave I seem to have missed something here. Does the GPS info attached to the photo give a degrees coordinate or a an actual location? That is, does it include something like an address? To do so presumably it would need a built in map as well in. Otherwise it will give you what my navigation device does, and that is a set of lat/ lon coordinates which to my mind is not going to be all that clear to the average user. Bill |
#45
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New Sony GPS Camera Accessory
Mr.T wrote:
wrote in message ups.com... I do it the low tech way - immediately before the shot (or after if I think about it too late) I hold my GPS in front of the camera and take exactly the same shot. Costs me nothing more than some extra wear and tear on my CF card. I wouldn't worry about the CF card, but all SLR's DSLR's have a finite life expectency for number of exposures/shutter operation. Obviously you will only get half the number of actual photo's. Given that most DSLR bodies will probably be obsolete before they are worn out, I would not let it stop you though :-) I think my shutter is rated at 150,000 actuations. I've done about 9000 shots in 18 months, so that means I still have 25 years to go before it breaks. ;-) I don't do the extra GPS shot for *every* frame - usually just once to record the general location of the following shots (I usually don't need to do this unless it's a newly discovered location), or multiple times where I want to recreate specific frames as closely as possible in the future. |
#46
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New Sony GPS Camera Accessory
["Followup-To:" header set to rec.photo.digital.slr-systems.]
Padu wrote: Actually, I believe you don't need their hardware. I develop GPS based applications, and thinking about it, if you have a tracklog recorded in a given format (NMEA is common to most, if not all, GPS devices), it shouldn't be difficult to write an application that goes through a folder where your pictures are stored and match the date picture was taken from the EXIF, and get the coordinate from the tracklog file at that time, and write back to the EXIF. I would create such a software easily, but I doubt that nobody thought about it yet. You are right: http://freefoote.dview.net/linux_gpscorr.html -Wolfgang |
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