TIFF files don’t appear to have a pixel or resolution limit that I can find, but they do have a 4GB file size limit. Seitz RAW Converter for their Roundshot cameras lists a maximum of 4GB for their DNG files, so the file format is capable of much larger images than Photoshop's own Camera RAW engine. I can't find any specified maximum image size or file size for the DNG format in Adobe's documentation, but Camera RAW will limit you to 512MP anyway. I usually stay with the manufacturer's native RAW format, but Lightroom 6+ can merge panoramas and HDR images into DNG format (sadly, no batching feature yet), preserving the RAW data for easier editing later, such as adjusting white balance. Adobe makes a DNG Converter to convert camera manufacturer-specific RAW formats into DNG format. It supports both lossy and lossless compression and up to 32-bit floating point. DNGĭNG is Adobe's Digital Negative format for RAW files. Let’s go over a few common file formats and their limitations-keep in mind that a file format might be able to hold a larger image than your program can read. Sometimes it is confusing to figure out what is a program limitation and what is a file format limitation. Other programs will have their own image size limitations. This is probably a limitation of Camera RAW, the engine underneath Lightroom’s hood. For example: 32,000 x 16,000 is the largest 2:1 equirectangular spherical panorama you can work on in Lightroom and fit under 512 megapixels. Lightroom also has a silly limitation of 512 megapixels for an image regardless of the longest side, which makes things very frustrating for a panoramic photographer. Lightroom is a lot more restrictive at 65,535 pixels along the greatest side. Photoshop internally supports a maximum image size of 300,000 x 300,000 pixels or 90 gigapixels (assuming you have enough RAM!), but very few file types support this insane size. Let’s talk about application limitations first. Photoshop & LightroomĪpplications and file formats both have their own set of limitations when it comes to pixel dimensions and file sizes. I thought I’d share a few things I’ve learned while dealing with such large images that might help other panoramic photographers struggling with poorly documented limitations of various file types and their compatibility between common applications. This should make it easier to use the latest krpano version in Panotour Pro and maybe also add some fixes to some templates when necessary.I’ve been working with some very large 5+ gigapixel panoramas lately. I will try to use that new opened access to provide 'update-packages' for Panotour Pro when new krpano versions will be released. That means some updates to Panotour Pro are still possible. With the last Panotour Pro release (version 2.5.14) Kolor has opened the access to its previously internal template files to make it possible to edit or update them manually. What does this mean for Panotour Pro users?Īs Kolor closes there will be no official Panotour Pro development anymore, but using the software itself will be still possible. Maybe one thing - I was already working on improving the krpano GUI editing functionalities for a long time and now without Panotour I will probably accelerate the development in that direction. The krpano development itself is very good ongoing (although a bit slower than wished) and the next release is not far away and will bring some nice new features. krpano was always fully independent and will be also in future. I also got informed about that just two days ago and I don't know any reasons or internals, but at least I can answer some questions about what that would mean for krpano and for the future support for Panotour Pro - so here answers from my side:įrom krpano side basically nothing will change or be different now. You may have heard that Kolor - the developer of Panotour Pro (a krpano-based virtual-tour-editor) - is closing.Īnd here the statement from Alexandre Jenny, the founder of Kolor:
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