Images only just over 1mb when converted to jpeg

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snapsnap

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Dan
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Hi if i take my RAW image (14mb) into photoshop crop and edit it. When i change this to a jpeg at maximum quality it comes out to be a 1.5mb file.

Now this is no good for large print!!

What am i doing wrong?? is it to much of a crop?? as i dont crop the image that much

Please help as i want these in a print of the size of a4

Thanks in advance
 
do you save at maximum size...there is a slider for saving put it to 100%
 
like marc says, it depends on the pic itself

I've printed out 1MB at 36"x24" and they look great (I did use genuine fractals to resize though)

the big question is who is it for ? - if its for a client they won't be pixel peeping
 
you need to check the compression your saving it at... some have up to 100% some have a sliding scale 1-12 ... you need to be on the highest.. least compression... sounds like your on 10 in photoshop
 
Where are you getting the file size from? A jpeg will be compressed, but the open image file size should be quite a bit larger! :thinking:
 
and, because of the way that the compression algorithm works, the final size of the JPEG file is significantly influenced by the content of the image.

If the photo contains mostly blue sky, for example, then it's going to compress very well and result in a small file on disk. If it contains lots of intricate detail, then the final file will be significantly larger.
 
when you crop the image, are you using the crop tool in Photoshop? If so, are all the fields empty in the crop tool bar?
 
snapsnap said:
ok i just posted the pics on photobox gallery and when i select to have it printed in a4 it says poor quality but 6x4 is fine. i just throught it was because of the res/size the image was.

Maybe they was uploaded in a smaller size.

I will check
Click to expand...

As a 14Mb raw file will output as 40Mb 8bit tiff file, and regardless of jpeg compression would be adaquate for the largest print size that PhotoBox does.

Even if you cropped the image by half there would still be enough resolution for a A4 print, I have had 20x16 prints done from the Olympus E-1 (which is only a 5Mb camera) without getting the lack of resolution warning at PhotoBox.

The Upshot is that some where along the processing line you are down scaling your images to a unaceptable level for printing.
 
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