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- Elida Gutierrez

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Shoting in Raw and small files


I have a 10mp camera, recently a begin to shot in RAW and edit them in Lightroom, but when I export to JEPG the size never gets to 5mb, how can I set the camera or in Lightroom to increase the size and don't do it in PS.
THANKS IN ADVANCE!!!


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September 22, 2008

 

W.
 
Change the JPG conversion setting to 'Extra Fine', or 'Super Fine', or 1:2, or 1:3, Elida.

RAW or TIFF files are waaaay larger than JPGs. This can become a storage problem. It need not be: simply zip/archive them. The file size will be greatly reduced – convenient for storage – while the image quality is NOT affected.

Have fun!


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September 22, 2008

 
- Elida Gutierrez

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  Thanks W.


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September 22, 2008

 

John P. Sandstedt
  Set your Quality Setting to Hi-Res JPEG + RAW. When you upload to the hard drive, compare the JPEG and RAW files.

With my Canon 30D, the JPEG file is ~3.5 MB, the RAW is 8.5 MB. The difference in file size results from the JPEG's algorithm working on the image file.

Get the RAW file into Photoshop - there are two ways [use the software supplied by your camera manufacturer or open the RAW fie in your editing software. Do the editing you desire and save the image as a TIFF file. Then, save the image as a JPEG file. Compare the file sizes.

The TIFF image will be larger.

Using Canon's Digital Photo Professional one can "convert" a RAW image and save it as either a PSD or TIFF file. Typically the file size will be a 16-bit file about 47 MB. The other way is to use the Transfer to Photoshop Command. This also gives a 47 MB file, the differences reflect resolution and dimensional issues. But, you're starting with a 47 MB file.

Saving this image as a JPEG file drops the size to 26 MB or so.

It would appear you've fallen into the trap of allowing the camera computer, which loses data from the git-go, to be the problem not the solution.


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September 23, 2008

 
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