Gary Clarke Posted November 10, 2014 Share Posted November 10, 2014 As a relative newcomer I'm getting a bit confused about the file size requirements and would appreciate a bit of advice please. I know it's a requirement to submit JPEGS with an uncompressed file size of 17MB and based on that I had assumed that my old Nikon D300 images wouldn't be suitable as these tend to produce RAW images of around 9-10MB (I'm not talking not MPixels which for that camera is 12). But I notice it is on the list of recommended cameras. So as an example, I exported (from Lightroom) a D300 RAW image that was showing at 9.63MB in Lightroom and that produced a JPEG of just over 7MB (I had the LR export settings as JPEG, sRGB, file size no limit, resolution 300ppi). Oddly looking at the RAW file in Finder it was showing as 10.1MB, not 9.63MB as in Lightroom. As an experiment I exported the same RAW file to Photoshop and simply saved it with no editing whatsoever and it resulted in saved file sizes in Lightroom of 69.92MB (as both PSD and TIFF, again both were bigger in Finder?), i.e. well above the 17MB minimum. But when I exported these from Lightroom it resulted in the same JPEG file size of 7MB. So what is required - save the image as PSD or TIFF first to get about the minimum and then save the JPEG from that? Or am I missing the point? (I probably am). Haven't had this problem before as file sizes from Fuji XT1 and especially Nikon D800 seem to easily large enough by simply exporting as a JPEG from the Lightroom RAW file. So, help please. Getting totally lost with this! Link to comment Share on other sites More sharing options...
This topic is now archived and is closed to further replies.