Paul Dunn Posted August 21, 2015 Share Posted August 21, 2015 I have read the specification for uploading images to the Alay site. It notes that uncompressed images must be at least 17MB in size. Is this correct? That is absolutely enormous! Unless, of course, I'm doing something wrong ... Thanks. Link to comment Share on other sites More sharing options...
Jill Morgan Posted August 24, 2015 Share Posted August 24, 2015 I have read the specification for uploading images to the Alay site. It notes that uncompressed images must be at least 17MB in size. Is this correct? That is absolutely enormous! Unless, of course, I'm doing something wrong ... Thanks. Hi Paul: This is probably the most asked question here on the forum. You have to remember that it is the uncompressed file size (the RAW file that comes straight from your camera,) that Alamy is talking about, not the compressed jpg you will be uploading. I have an 18 mp camera, so my RAW files are just over 51mb. When saved as a jpg, they will be anywhere from 2 - 15 mb depending on the detail in the image. Jill Link to comment Share on other sites More sharing options...
IanGibson Posted September 1, 2015 Share Posted September 1, 2015 Perhaps it would be easier all round if Alamy just gave everyone a pixel count to aim for. They require a 17MB uncompressed jpeg file - this is 17,825,792 bytes (17 x 1024 x 1024). The required minimum pixel count is one third of this (each pixel is 3 bytes) which equals 5,941,931 pixels. Lets call that 6 megapixels. Multiply the height and width of your RAW or tiff image in pixels, and if it is more than 6,000,000, save it at the highest resolution jpeg you can. Link to comment Share on other sites More sharing options...
rickygui Posted November 24, 2015 Share Posted November 24, 2015 The thing is how do i saved as over 17MB when the files already automatically convert JPG in compression? I convert my RAW file from Lightroom and always got below 17MB. While TIFF can easily goes up to 60MB. Link to comment Share on other sites More sharing options...
NYCat Posted November 24, 2015 Share Posted November 24, 2015 The thing is how do i saved as over 17MB when the files already automatically convert JPG in compression? I convert my RAW file from Lightroom and always got below 17MB. While TIFF can easily goes up to 60MB. Don't worry about the size of the jpeg. It is compressed. The 17MB is for an uncompressed file (the size before you turn it to a jpeg). Paulette Link to comment Share on other sites More sharing options...
Armstrong Posted November 24, 2015 Share Posted November 24, 2015 The thing is how do i saved as over 17MB when the files already automatically convert JPG in compression? I convert my RAW file from Lightroom and always got below 17MB. While TIFF can easily goes up to 60MB. if you have an uncompressed file such as a TIFF or RAW that is over 17mb then any JPG's you make from that file will be fine so long as you keep the JPG compression setting high. Try using this utility to check your photos. http://www.braeside.plus.com/photography/alamy/alamy.html Link to comment Share on other sites More sharing options...
MircoV Posted November 24, 2015 Share Posted November 24, 2015 Just forget all this uncompressed and compressed if you dont want to go to deep into it. Just apply the following: Take a photo on minimum 6 megapixel on JPEG..... done. Soon or later you will find out yourself what aboved mentioned means. Mirco Link to comment Share on other sites More sharing options...
vpics Posted November 24, 2015 Share Posted November 24, 2015 The 17MB size probably comes from the dark ages of Alamy when we had to supply TIFF files. Link to comment Share on other sites More sharing options...
Arpad Posted January 28, 2018 Share Posted January 28, 2018 I have a problem. I try to upload my first 3 images but I get the upload error - 1 file rejected. I have .jpg format I try with 24 Mb until 70 Mb files but the same error What i do wrong ? Link to comment Share on other sites More sharing options...
Sally Posted January 29, 2018 Share Posted January 29, 2018 Not sure if this size checker still works, but I used it regularly before I started uploading via Alamy Bridge plugin for Lightroom (which has an automatic file size checker) http://www.braeside.plus.com/photography/alamy/alamy.html Link to comment Share on other sites More sharing options...
Niels Quist Posted January 29, 2018 Share Posted January 29, 2018 23 hours ago, Arpad said: I have a problem. I try to upload my first 3 images but I get the upload error - 1 file rejected. I have .jpg format I try with 24 Mb until 70 Mb files but the same error What i do wrong ? Minimum size of image in pixels 2000 x 3000 http://www.alamy.com/contributor/how-to-sell-images/guidelines-for-submitting-images/ Are you sure you have chosen baseline (standard)? Link to comment Share on other sites More sharing options...
Allan Bell Posted January 29, 2018 Share Posted January 29, 2018 Is it possible you clicked a TIFF image instead of the jpeg image when you were uploading to Alamy? Allan Link to comment Share on other sites More sharing options...
Bill Kuta Posted January 29, 2018 Share Posted January 29, 2018 This subject can be confusing because some of the words are used for different purposes; the essence of the confusion is that "image size" is not necessarily the same as "image file size." If you open an image in Photoshop, there is a note on the bottom left margin, "Doc: nnM/nnM", that gives you the uncompressed image size. For instance, I just opened one of my 12.7-megapixel images, and that marginal note says "Doc: 72.8M/72.8M". So the uncompressed image size for that one is 72.8 megabytes. To add to the confusion, Photoshop calls that "Document size." For the same image I'm using as an example here: raw file size = 14.8 Mb jpeg file at PS baseline standard = 3.59 Mb 8-bit TIFF file = 72.8 Mb --This will also give you the uncompressed image size 16-bit TIFF file size is twice the 8-bit file size. Or as Mirco points out, 6 megapixels or more will do it. Link to comment Share on other sites More sharing options...
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