[hugin-ptx] Re: Creating multiple panoramas from a .bat file
On 5 Dez., 21:23, Gitominoti gitomin...@gmail.com wrote: autopano-sift --projection 0,50 test.pto folder1/pic.JPG folder2/ pic.JPG folder3/pic.JPG celeste_standalone -i test.pto -o test.pto autooptimiser -a -l -s -m -o test.pto test.pto hang on... I think you're missing something right here. The commands so far create the pto and optimize the image positions to fit the control points. But you haven't got the 'warped' images yet. You need a call to nona with the optimized pto to produce the images test.jpg etc. - with a call like nona -o test test.pto once you have them you can proceed to the next step and call enblend: enblend -o test.jpg test.jpg test0001.jpg test0002.jpg ... Kay -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
Re: [hugin-ptx] Re: Attitude in EXIF?
2011/12/6, kfj _...@yahoo.com: On 5 Dez., 17:17, Jeffrey Martin 360cit...@gmail.com wrote: I like this idea so much, that I continued doing a bit of research on whether it's possible. I think it might be. could the same be done with this position-ometer?http://www.x-io.co.uk/node/9 it would be so cool! A few years ago we had phones. Now we have smartphones. Let's hope we also get 'smartcameras'. When I look at the computing capacity of my camera (as revealed by the quite sophisticated image processing) and contrast that to the meagre essentials my firmware allows me to manipulate, I feel cheated somehow... I hope open firmware takes off. For those who have a Canon compact or bridge, this http://chdk.wikia.com/wiki/CHDK is a proof that the hardware is able to do much more than we usually think. I use it in my S5 and it works. -- Frederic Da Vitoria (davitof) Membre de l'April - « promouvoir et défendre le logiciel libre » - http://www.april.org -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
[hugin-ptx] Re: Attitude in EXIF?
HI Kay, On Tuesday, December 6, 2011 8:52:59 AM UTC+1, kfj wrote: A few years ago we had phones. Now we have smartphones. Let's hope we also get 'smartcameras'. I have very little hope at this point. Or, you could consider that they (canon, nikon, etc.) might do it, 5 or 10 years after you think they should ;) When I look at the computing capacity of my camera (as revealed by the quite sophisticated image processing) and contrast that to the meagre essentials my firmware allows me to manipulate, I feel cheated somehow... Totally. It is outrageous in fact. There is so much possible, and so little being done, in the cameras. It is a shame. And they can't even open up the camera to allow user scripting. WTF? :( I hope open firmware takes off. GPS has already made it's way into compact cameras, quite probably because geotagging can instantly be recognized by a significant part of the general public as a useful feature. Well, there is still the problem of battery life. I think this is one of the biggest factors about why there isn't GPS in more cameras. But still that's a pretty lame excuse. Inclinometer data might be sold to the public as an aid to automatically level the horizon, and since that is one of the commonest photographic mistakes it might be the route for these devices into cameras. Mind you, probably into compact cameras - and if you have a DSLR you'll be asked to fork out 500$ for some bulky stick-on device which only works with the top of the range and drains your battery in no time. The device you dream of sticking to your camera seems like overkill to me. Nice-to-have, but really one of the small sensors like those inside a smartphone would do the trick well enough - and they are much cheaper, as well :) That's a good point. It's true that the phones have the same sensors (magnetometer, accelerometer, gyroscope). You could make an iphone/android app to do the same thing.Trouble is of course, how to stick the phone on your camera's flash hot-shoe? :-))) -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
Re: [hugin-ptx] Re: Attitude in EXIF?
Right, I was going to say the same. Most iphone and andorid phone has this capability, soon every little gadget will too. The camera producers need to se the benefit though. Which I think instant panorama, 3D application etc would be. With GPS there are add ons to e.g. Lightroom that correlates at GPS track with photo timestamp and add position in metadata. This electronic tripod/attitude could work the same. Cheers /O 2011/12/6 Jeffrey Martin 360cit...@gmail.com HI Kay, On Tuesday, December 6, 2011 8:52:59 AM UTC+1, kfj wrote: A few years ago we had phones. Now we have smartphones. Let's hope we also get 'smartcameras'. I have very little hope at this point. Or, you could consider that they (canon, nikon, etc.) might do it, 5 or 10 years after you think they should ;) When I look at the computing capacity of my camera (as revealed by the quite sophisticated image processing) and contrast that to the meagre essentials my firmware allows me to manipulate, I feel cheated somehow... Totally. It is outrageous in fact. There is so much possible, and so little being done, in the cameras. It is a shame. And they can't even open up the camera to allow user scripting. WTF? :( I hope open firmware takes off. GPS has already made it's way into compact cameras, quite probably because geotagging can instantly be recognized by a significant part of the general public as a useful feature. Well, there is still the problem of battery life. I think this is one of the biggest factors about why there isn't GPS in more cameras. But still that's a pretty lame excuse. Inclinometer data might be sold to the public as an aid to automatically level the horizon, and since that is one of the commonest photographic mistakes it might be the route for these devices into cameras. Mind you, probably into compact cameras - and if you have a DSLR you'll be asked to fork out 500$ for some bulky stick-on device which only works with the top of the range and drains your battery in no time. The device you dream of sticking to your camera seems like overkill to me. Nice-to-have, but really one of the small sensors like those inside a smartphone would do the trick well enough - and they are much cheaper, as well :) That's a good point. It's true that the phones have the same sensors (magnetometer, accelerometer, gyroscope). You could make an iphone/android app to do the same thing.Trouble is of course, how to stick the phone on your camera's flash hot-shoe? :-))) -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx -- /O -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
[hugin-ptx] Re: Attitude in EXIF?
The Solmeta Pro GPS http://www.solmeta.com/index.php/Product/show/id/1unit does actually measure all these parameters but doesn't record the Tilt or Roll as currently there are no standard EXIF fields for this data, a custom set would need to be defined. -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
Re: [hugin-ptx] Re: Mosaic
Ok, will play with it. Wouldn't some kind of filtering based on geometry be possible in the mosaic case although it won't be as unambigous? Like using the asumption that all images are depicting a planar world from different viewpoints. Cheers /O 2011/12/5 Bruno Postle brunopos...@googlemail.com On 5 Dec 2011 13:29, Oskar Sander wrote: Allright, Is there documentation on how this logics works somwhere to read. I'm guessing by the name that it is assuming a single flat plane that the images is should be projected on in order for the CP to match. Right? 'hom' isn't a special mosaic mode, it just turns off all the filtering that makes cpfind very reliable for panoramas, this filtering will remove all control points in a mosaic project. So 'hom' will produce lots of 'bad' points. You will need to do manual editing, and may be happier creating all your points manually in the first place. -- Bruno -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx -- /O -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
Re: [hugin-ptx] Re: Attitude in EXIF?
I was thinking more about this, and whether an external logger with sync (like you do with gps) would be possible and the answer is definitely NO - GPS is very course, and in practical purposes, you can have the sync off by a few seconds and the photos will still have correct location data. not the case with the position of the camera in space. and there is no way you can synchronize a non-tethered device within 1/100 of a second or whatever it takes to correctly synchronize such data. so a device like this will have to be tethered. in terms of the compass i've noticed using my analog compass that i can't hold it too close to my camera or it is wrong. so i wonder how an electronic compass will be able to deal with that. finally, in terms of custom exif data if we are to build this for nikon, we'll need to hack the position data inside the exif data. i don't think there will be any other way. we'll see ;) now, what nikon slr should i buy? i've been a canon guy up till now :( On Tuesday, December 6, 2011 11:24:10 AM UTC+1, Oskar Sander wrote: Right, I was going to say the same. Most iphone and andorid phone has this capability, soon every little gadget will too. The camera producers need to se the benefit though. Which I think instant panorama, 3D application etc would be. With GPS there are add ons to e.g. Lightroom that correlates at GPS track with photo timestamp and add position in metadata. This electronic tripod/attitude could work the same. Cheers /O 2011/12/6 Jeffrey Martin 360c...@gmail.com HI Kay, On Tuesday, December 6, 2011 8:52:59 AM UTC+1, kfj wrote: A few years ago we had phones. Now we have smartphones. Let's hope we also get 'smartcameras'. I have very little hope at this point. Or, you could consider that they (canon, nikon, etc.) might do it, 5 or 10 years after you think they should ;) When I look at the computing capacity of my camera (as revealed by the quite sophisticated image processing) and contrast that to the meagre essentials my firmware allows me to manipulate, I feel cheated somehow... Totally. It is outrageous in fact. There is so much possible, and so little being done, in the cameras. It is a shame. And they can't even open up the camera to allow user scripting. WTF? :( I hope open firmware takes off. GPS has already made it's way into compact cameras, quite probably because geotagging can instantly be recognized by a significant part of the general public as a useful feature. Well, there is still the problem of battery life. I think this is one of the biggest factors about why there isn't GPS in more cameras. But still that's a pretty lame excuse. Inclinometer data might be sold to the public as an aid to automatically level the horizon, and since that is one of the commonest photographic mistakes it might be the route for these devices into cameras. Mind you, probably into compact cameras - and if you have a DSLR you'll be asked to fork out 500$ for some bulky stick-on device which only works with the top of the range and drains your battery in no time. The device you dream of sticking to your camera seems like overkill to me. Nice-to-have, but really one of the small sensors like those inside a smartphone would do the trick well enough - and they are much cheaper, as well :) That's a good point. It's true that the phones have the same sensors (magnetometer, accelerometer, gyroscope). You could make an iphone/android app to do the same thing.Trouble is of course, how to stick the phone on your camera's flash hot-shoe? :-))) -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugi...@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx -- /O -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
Re: [hugin-ptx] Re: Attitude in EXIF?
What about using XMP instead of EXIF? I guess XMP is more open to user-defined data. 2011/12/6, Jeffrey Martin 360cit...@gmail.com: I was thinking more about this, and whether an external logger with sync (like you do with gps) would be possible and the answer is definitely NO - GPS is very course, and in practical purposes, you can have the sync off by a few seconds and the photos will still have correct location data. not the case with the position of the camera in space. and there is no way you can synchronize a non-tethered device within 1/100 of a second or whatever it takes to correctly synchronize such data. so a device like this will have to be tethered. in terms of the compass i've noticed using my analog compass that i can't hold it too close to my camera or it is wrong. so i wonder how an electronic compass will be able to deal with that. finally, in terms of custom exif data if we are to build this for nikon, we'll need to hack the position data inside the exif data. i don't think there will be any other way. we'll see ;) now, what nikon slr should i buy? i've been a canon guy up till now :( On Tuesday, December 6, 2011 11:24:10 AM UTC+1, Oskar Sander wrote: Right, I was going to say the same. Most iphone and andorid phone has this capability, soon every little gadget will too. The camera producers need to se the benefit though. Which I think instant panorama, 3D application etc would be. With GPS there are add ons to e.g. Lightroom that correlates at GPS track with photo timestamp and add position in metadata. This electronic tripod/attitude could work the same. Cheers /O 2011/12/6 Jeffrey Martin 360c...@gmail.com HI Kay, On Tuesday, December 6, 2011 8:52:59 AM UTC+1, kfj wrote: A few years ago we had phones. Now we have smartphones. Let's hope we also get 'smartcameras'. I have very little hope at this point. Or, you could consider that they (canon, nikon, etc.) might do it, 5 or 10 years after you think they should ;) When I look at the computing capacity of my camera (as revealed by the quite sophisticated image processing) and contrast that to the meagre essentials my firmware allows me to manipulate, I feel cheated somehow... Totally. It is outrageous in fact. There is so much possible, and so little being done, in the cameras. It is a shame. And they can't even open up the camera to allow user scripting. WTF? :( I hope open firmware takes off. GPS has already made it's way into compact cameras, quite probably because geotagging can instantly be recognized by a significant part of the general public as a useful feature. Well, there is still the problem of battery life. I think this is one of the biggest factors about why there isn't GPS in more cameras. But still that's a pretty lame excuse. Inclinometer data might be sold to the public as an aid to automatically level the horizon, and since that is one of the commonest photographic mistakes it might be the route for these devices into cameras. Mind you, probably into compact cameras - and if you have a DSLR you'll be asked to fork out 500$ for some bulky stick-on device which only works with the top of the range and drains your battery in no time. The device you dream of sticking to your camera seems like overkill to me. Nice-to-have, but really one of the small sensors like those inside a smartphone would do the trick well enough - and they are much cheaper, as well :) That's a good point. It's true that the phones have the same sensors (magnetometer, accelerometer, gyroscope). You could make an iphone/android app to do the same thing.Trouble is of course, how to stick the phone on your camera's flash hot-shoe? :-))) -- Frederic Da Vitoria (davitof) Membre de l'April - « promouvoir et défendre le logiciel libre » - http://www.april.org -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
[hugin-ptx] Re: Attitude in EXIF?
Good find, Geoff! Ok, so it looks like the heading can be written into the GPS exif data without any hack? That leaves only the pitch/roll data - We could probably stick this in the altitude field, since the altitude data is always totally wrong and useless anyway :) -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
[hugin-ptx] Re: Attitude in EXIF?
We could also use EXIF Tools facility to define and code our own Custom fields ? See http://www.sno.phy.queensu.ca/~phil/exiftool/config.html Joost is also building in the ability to use the GPSImageDirection field into PTGui and I have suggested that he allow for Tilt and Roll as well, likewise Thomas is building in support for use within Pano2vr. -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
Re: [hugin-ptx] Re: Attitude in EXIF?
Yes that's right and the .ExifTool_config allows you to create the definition for a new tag within your system so that it can be written. Unknown Tags can be extracted by ExifTool, so that's not a problem. Reusing other Tags such as Altitude will mean that the data will be overwritten if you use other geotagging programs that use the field, say you used Geosetter to locate the image it would overwrite the Altitude info. and you would loose that data you carefully pushed into it! Much better to define a new field, for the info now, then as and when a new Exif spec appears with what we want in it we can use ExifTool to move the data from our own defined field to the real one. The major problem will be getting cameras to write non-standard info that there not expecting :-( Much better to go via the Logging route and then attach the new data into our custom field offline where it won't be over written. -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
[hugin-ptx] Re: Attitude in EXIF?
Yup. Calibration makes up for any *stationary* interfering objects which is why you can have a very accurate fixed compass on a ship or vehicle. So the limitation Geoff points out is mostly a result of the sensor. However, all the tripod and parts of the head are not stationary relative to the panning camera. These parts also tend not to be symmetrical and the actual sensor is unlikely to be at the npp (which would be the center of symmetry.) Perhaps the effect is minimal (depending on the rig?) or it could be that 5º is about as good as it might get, without special attention to the design of the whole rig, whatever the quality of the sensors. On Dec 6, 9:37 am, Geoff G8DHE geoff.mat...@gmail.com wrote: in terms of the compass i've noticed using my analog compass that i can't hold it too close to my camera or it is wrong. so i wonder how an electronic compass will be able to deal with that. You need to calibrate any form of compass ! The Solmeta device requires that you put it in calibrate mode, and then twist the unit along all 3-axis twice so that it can record the maximum external field strengths, by recording the changes rather than measuring the static fields created by the camera/head/device. The accuracy and precision even after calibration is not that high 5° is good. Unless you go for some very expensive sensors. -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
Re: [hugin-ptx] Re: Attitude in EXIF?
I think the main issue is WRITING the data into the nikon camera. it supports only GPS logging, AFAIK and it might not allow writing to some other exif field. that's why i suggested an ugly hack, writing the position info into the gps / altitude fields. does anyone know if a better solution - writing into some other exif field - will be possible in nikon cameras? as for using some other camera - i don't think it's possible. AFAIK only nikon allows tethered GPS loggers to write to the memory card while shooting. canon doesn't allow it -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
[hugin-ptx] Re: Attitude in EXIF?
On 6 Dez., 16:37, Geoff G8DHE geoff.mat...@gmail.com wrote: You need to calibrate any form of compass ! The Solmeta device requires that you put it in calibrate mode, and then twist the unit along all 3-axis twice so that it can record the maximum external field strengths, by recording the changes rather than measuring the static fields created by the camera/head/device. The accuracy and precision even after calibration is not that high 5° is good. Unless you go for some very expensive sensors. My (Garmin etrex hcx) GPS has a compass, but it's not too precise, needs calibration, and only produces correct data if the device is held level (!) and there are no magnetic fields around. One would wish for something better, but I'm not sure they exist. On the other hand, the compass is the thing needed least for a panorama - the inclinometer would be much more useful and it should work no matter what. Kay -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
Re: [hugin-ptx] Re: Attitude in EXIF?
Well it should be possible the Exif ver. 2.3 spec http://www.cipa.jp/english/hyoujunka/kikaku/pdf/DC-008-2010_E.pdf Specifys that the GPS Altitude record is a Rational number which is two 32bit unsigned integers (numerator denominator). However your going to need to strip those two values out of the Altitude field before any other program touches the data and overwrites the Altitude information. I'm still inclined to go with using the Logger info from the Solmeta Pro where the $PTNTHPR sentences provide the heading, pitch, and rollinformation in one nice easy format! $GPRMC,133656.000,A,5049.6748,N,00022.9357,W,1.73,145.09,030811,,,E*76 $PTNTHPR,218.9,N,-7.9,N,-3.2,N,A*19 $GPGGA,133700.000,5049.6744,N,00022.9365,W,1,03,10.6,24.9,M,47.1,M,,*41 $GPRMC,133659.000,A,5049.6734,N,00022.9377,W,1.77,198.54,030811,,,A*78 $PTNTHPR,246.4,N,-26.0,N,4.6,N,A*0B $GPGGA,133747.109,5049.7042,N,00022.9503,W,1,03,10.0,30.4,M,47.1,M,,*42 -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
[hugin-ptx] Re: Attitude in EXIF?
On 7 Dez., 08:04, Gnome Nomad gnomeno...@gmail.com wrote: One difference between compact PS cams and DSLR when it comes to battery life: compact cams use a lot less juice. They're only moving a tiny little lens around, powering a tiny little chip and not having to flip a frame-sized mirror out of the way to take a picture. This isn't necessarily true: - you can easily work a DSLR without the monitor on most of the time. Try that with a PS - DSLRs do not have to focus via the main sensor, so they don't need processing power for that (and more power for the 'pumping' until the correct focus is found') - you zoom DSLRs manually, while PSs use a motor for the purpose - PSs usually keep the lens inside the body and have to move it out and back in on every power on/off I used a PS and routinely took spare batteries because they ran out quite quickly. When I got a DSLR, I bought some spare batteries right away, just to find out that I seldom need them (admittedly they're a bit fatter). So while a compact might have the battery life to support built-in GPS, I'd really rather have my DSLR use its battery taking quality pictures. you make it sound as if just having a GPS unit uses power. The good thing about GPS units in this respect is that you can actually turn them off ;-) Kay -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
