If you want to have at least 150DPI for the largest size:
24*150= 3600
36*150= 5400
so your file size must be 3600px X 5400px
So the file size for the DPI is based on just the Width: 3038
# Height: 2019 ?
It has nothing to do with how I compress the file to upload it?
Looking at the Size: 2.5mb if I uploaded it so that was a 5.0mb file I would still have a printable photo that was Width: 3038
# Height: 2019 in. giving me the same DPI that I had before?
The more resolution the bigger the print size BUT, if you print really big a heavilly compressed file you may find that the image quality is not that stunning.
The best for me seems to get the resoltuion you want based on the print size you want. Compress the least you can or even not at all and be patient while uploading. Anyway, if it's for DPCprints and it's too much compressed, your image will likely be rejected.
That clears it up, thanks so much for the replies.
I take it that when I am uploading for prints that it is using up my 50mb of space just like when I upload a image to my portfolio?
To get larger prints with quality, it's all about DPI. The size in Mb really does not have that much to do with it. A .RAW file or .PSD file saved at 6 to 8 Mb looks just as good as a .Tiff at 40Mb or more.
Yep, seen that.
The only way for me to get any bigger prints is to up my 6 meg pix camera to a higher one or do the above.
Not that I want to have bigger prints at this time, just wondering how it all works.
You can resize by resampling. Several photographers here know how to do it well using bicubic at a 5% step with each increase. But you will not be able to get an 84 DPI pic to a 150 DPI and make it look worth anything.
