Ligthroom Help

[MRCPix]

I am having problems with crops in lightroom.
when I crop an image in lightroom and export it and then open it in PSCS3 the crop is different. Example crop 8 x 10 in lightroom open it in PS and look at image size and it is 7.25 x 11.4 really strange stuff.
I was wondering if anyone else had this problem or know how to solve it?

[JohnT]

Are you exporting from the Develop module?

[MRCPix]

no I am exporting from the library module.
in case anyone is wondering I am not new to lightroom I have been using it since it came out, but this is the first time I have had this problem

[JohnT]

Reason I asked is that if you were saving from the Print module, some 8x10 settings will save with borders. Since you aren't a newbie, I'm not sure what's going on. :-)

[RKEnnis]

I think this has to do with the fact that Lightroom crops to an aspect ratio, not a specific inch size dimension. The actual inch size depends on the image dpi.

For example, I crop to 8x10 in LR, then do command-e to open in PS CS4. PS shows my document size as 11.867x14.833 at 240 pixels/inch. This IS an 8x10 aspect ratio, though.

This can be easily verified by using the crop tool in PS set to 8x10 at 300 pixels/inch. Using the crop tool, "select" the entire image and press enter. Photoshop should now show your image size as 8x10 at 300 pixels/inch.

I'm not crazy about this behavior, personally. I guess it does make some sort of sense though.

If you do a Google search, you'll probably get a better explanation than I've given here.

[MRCPix]

that is interesting and makes sense. I had to upload images to an ftp site and when the photographer opened the images in photoshop they displayed as a different size. I will look and see if I can change the dpi default in lightroom to 300 so it will match what is being used by others.

[JohnT]

Originally Posted by RKEnnis

I think this has to do with the fact that Lightroom crops to an aspect ratio, not a specific inch size dimension. The actual inch size depends on the image dpi.

For example, I crop to 8x10 in LR, then do command-e to open in PS CS4. PS shows my document size as 11.867x14.833 at 240 pixels/inch. This IS an 8x10 aspect ratio, though.

This can be easily verified by using the crop tool in PS set to 8x10 at 300 pixels/inch. Using the crop tool, "select" the entire image and press enter. Photoshop should now show your image size as 8x10 at 300 pixels/inch.

I'm not crazy about this behavior, personally. I guess it does make some sort of sense though.

If you do a Google search, you'll probably get a better explanation than I've given here.

This is a great explanation. Thank you.