Lightroom File Size Limit

Yes, high frequency information. The 1Mbyte image will lack fine detail compared to the 5Mbyte one. I assume you are resizing to a particular size with the export (i.e. resizing to 10"x8" at 300dpi)?
 
arad85 said:
Yes, high frequency information. The 1Mbyte image will lack fine detail compared to the 5Mbyte one. I assume you are resizing to a particular size with the export (i.e. resizing to 10"x8" at 300dpi)?
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my aim is to export all edited images to 300dpi and not lose any quality....I wasnt sure what information it took out if I limited the file file but DPI was the same....
 
booda said:
my aim is to export all edited images to 300dpi and not lose any quality....I wasnt sure what information it took out if I limited the file file but DPI was the same....
Click to expand...
Unless you're exporting in inches or cms (lightroom gives you the option of exporting as pixels, inches or cms) the dpi has absolutely no bearing on the file quality at all. All it does is tell any print dialog how big the image should be when printed.

If you are exporting as measurements and not pixels, then lightroom will rescale your image to fit the dimensions you specified (10x8 at 300dpi will be 3000x2400 pixels, even if the image raw is 10000x8000 pixels). I always ignore dpi until I want to make a hardcopy.
 
arad85 said:
Unless you're exporting in inches or cms (lightroom gives you the option of exporting as pixels, inches or cms) the dpi has absolutely no bearing on the file quality at all. All it does is tell any print dialog how big the image should be when printed.

If you are exporting as measurements and not pixels, then lightroom will rescale your image to fit the dimensions you specified (10x8 at 300dpi will be 3000x2400 pixels, even if the image raw is 10000x8000 pixels). I always ignore dpi until I want to make a hardcopy.
Click to expand...

the images are going onto a DVD for the client to print which and whatever he wants at whatever size, so was hoping to have some kind of standard setting to export the images.....
 
booda said:
the images are going onto a DVD for the client to print which and whatever he wants at whatever size, so was hoping to have some kind of standard setting to export the images.....
Click to expand...
Just give him the raw images then (or cropped but not rescaled). At the end of the day, if you have a 3000x2400 image and print it at 300dpi (i.e. 10"x8"), you still have theh same overall resolution if you take the same image and print it at 150dpi (i.e,. 20"x16"). Viewed at 2x the distance, they will look the same, but viewed at the same distance the 10x8 will look sharper simply because you are magnifying the resultant image less. As Scottie would say - "you cannae change the laws of physics"
 
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