Cropping for 4x6 in Aperture 3

I am going to get some prints made 4x6 for my mom from our trip out west this summer. Do I keep keep the ratio 2:3, crop, export, and print?

What I do;

crop to the aspect ratio in Aperture using a duplicate version

export 16-Bit TIFF to Photoshop

adjust dpi to match printer and resize to the exact dimensions of the print

print

I'n the case of a 4x6 this is pretty easy since that is the native aspect ration of most SLRs, just export and resize.

If you're making prints on your own printer than leave them as they are (2x3). If sending out, follow the printer's guidelines.

Sending to SAMs

If your shots are with a 7D, then they are already perfectly formatted for 4x6 prints. If you do any cropping, just be sure to keep it set on "Master Aspect Ratio".

Right click on your picture, then choose "Export --> Version"
Under "Export Preset", click the arrows and choose "Edit" from the bottom of the drop down menu.
Once that comes up, pick "Fit Within (Inches)" from the "Size To" option. Enter "4" and "6" in the dimension boxes (pay attention to whether you want portrait or landscape), then put "300" in the DPI box.
In the "Color Profile" option just beneath that, make sure it is set to some variety of "sRGB".

On the bottom left of the little window you will be looking at, click the "+" sign to save these settings as a new preset so you can have easy access to it in the future.

NothingRemains10 wrote in post #11473931
Sending to SAMs

I'd check with Sams to see if they have guidelines. You could send a high-quality jpeg "as is", but it may be "speedier" to follow the above suggestion of resizing/resampling to a smaller file that is 4x6 @300ppi. Some labs will prefer that (as well as upload speeds). As has been mentioned, the out-of-camera aspect ratio fits a 4x6. If you do crop the image for composition, make sure you keep the original aspect ratio.