Peter Enkel Posted August 1, 2011 Share #1 Posted August 1, 2011 Advertisement (gone after registration) My M8 has developed a resolution problem in that when the Menus are set to Resolution10MP and Compression DNG+ JPGfine but when copied via USB2 and Windows Explorer to my PC using Windows XP, the images are 320x240 and 10MP. The same phenomena occurs in Picassa and Windows own import software. Help please Link to post Share on other sites More sharing options...
Advertisement Posted August 1, 2011 Posted August 1, 2011 Hi Peter Enkel, Take a look here M8 Resolution Problem. I'm sure you'll find what you were looking for!
pop Posted August 1, 2011 Share #2 Posted August 1, 2011 What you're seeing is the preview image in the raw image file. The raw file has the suffix .DNG. Either open the .JPG files with your image viewing program or use an image processing program to view and process the DNG file. Link to post Share on other sites More sharing options...
Peter Enkel Posted August 1, 2011 Author Share #3 Posted August 1, 2011 Hi. Thanks for your fast response. Both image files report 10MP but Frame size for each is 320x240. I suspect a Camera fault? Link to post Share on other sites More sharing options...
pop Posted August 1, 2011 Share #4 Posted August 1, 2011 No, I don't think you can. What you are seeing is the preview image in the DNG file. The DNG file is 10.1 MB in size and the preview image is scaled to 320x240 pixels. If you have set your M8 to save both raw and jpg formats, you should have each picture twice in your directory, one with the suffix .DNG and one with the suffix .JPG. If you have not already done so, you should set your windows exploder to show all filename extensions and not to hide the known ones. It seems that Picasa can only display the jpeg images at their full resolution. It also seems that you are trying to display the raw image with Picasa. Link to post Share on other sites More sharing options...
jaapv Posted August 1, 2011 Share #5 Posted August 1, 2011 No, it is not a camera fault - it is a fault in the way you read the image in the computer. You are not looking at the full-sized file but at the embedded JPG file. You should look at the files in a proper browser like Lightroom, Bridge or Capture One. Not in Windows Explorer. Nor am I sure that Picasa supports DNG. And, but this is unrelated, you should download the files through a card reader, not by connecting the camera to the computer. Link to post Share on other sites More sharing options...
SJP Posted August 1, 2011 Share #6 Posted August 1, 2011 If you transfer via USB cable the file extensions are wrong (at least with PC, no idea what a Mac does) so you need to rename the 10MB files to extension DNG. I have never been able to figure out what causes this, possibly some tinkering with registry will sort this out but I have other things to do that are more urgent. Link to post Share on other sites More sharing options...
Peter Enkel Posted August 1, 2011 Author Share #7 Posted August 1, 2011 Advertisement (gone after registration) Many thanks for your valuable and very fast assistance. I have done as you suggested using Capture 1 and all seems to be as it should be. Link to post Share on other sites More sharing options...
Peter Enkel Posted August 1, 2011 Author Share #8 Posted August 1, 2011 If you transfer via USB cable the file extensions are wrong (at least with PC, no idea what a Mac does) so you need to rename the 10MB files to extension DNG. I have never been able to figure out what causes this, possibly some tinkering with registry will sort this out but I have other things to do that are more urgent. Thanks for that.I have attempted to use two card readers, one inbuilt at the PC, the other remote. Neither of them work for some reason which I will investigate. I will rename the files (all end .tif) as you advise and proceed from there. Link to post Share on other sites More sharing options...
andybarton Posted August 1, 2011 Share #9 Posted August 1, 2011 Macs import DNGs properly. I think I read somewhere that DNG is based upon a tiff standard, hence why Windows gets confused. Does Windows 7 show DNGs natively now? Link to post Share on other sites More sharing options...
pop Posted August 1, 2011 Share #10 Posted August 1, 2011 I think I read somewhere that DNG is based upon a tiff standard, hence why Windows gets confused. The DNG specification explicitly states that DNG is a variant of TIFF. I rather think that the confusion of Windows must have other causes. Mostly, Windows still selects the program to execute and its parameters based on the filename extension. Link to post Share on other sites More sharing options...
roguewave Posted August 1, 2011 Share #11 Posted August 1, 2011 Peter, best not to import with a wire. Copy the DNG files from the card externally to directories in whatever you use for large storage. It's much faster & safer. I always make a second copy which gets archived & remains unaltered in any way. You are playing with fire by downloading from the camera. It's also important to re format your card after you copy the images. Link to post Share on other sites More sharing options...
SJP Posted August 1, 2011 Share #12 Posted August 1, 2011 The DNG specification explicitly states that DNG is a variant of TIFF. I rather think that the confusion of Windows must have other causes. Mostly, Windows still selects the program to execute and its parameters based on the filename extension. Another factor is that using the USB cable tells the PC that a camera is attached - not an external drive. So you can fire the shutter by the click of the mouse but transferring files is messed up, saving the DNG files as .tiff. Link to post Share on other sites More sharing options...
jaapv Posted August 1, 2011 Share #13 Posted August 1, 2011 Thanks for that.I have attempted to use two card readers, one inbuilt at the PC, the other remote. Neither of them work for some reason which I will investigate. I will rename the files (all end .tif) as you advise and proceed from there.They probably don't work because they are older SD card readers and not compatible with SDHC cards. Link to post Share on other sites More sharing options...
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