Lightroom - batch crop & resize

I would like to be able to set up a preset that will batch crop and resize photos to 800x480 to put on my digital photo frame. I tried setting up an export option and resize to 800x480 but all the pictures ended up being 720x480 which is not what I want. I suspect it has something to do with the original aspect ratio.

Is there any way to set up a batch crop on export? if not it seems like a serious oversight on Adobe's part.

Crop one image to your 8 x 4.8 ratio and then SYNCHRONIZE all the rest of the images selecting the Crop option. Then your export routine will work.

Gatorboy,
Thanks. But won't that leave them in my catalogue cropped like that? I'd prefer to keep them at full size.

For that type of "special output" I use virtual copies. So, you select all the images, right-click and create virtual copies, then you can crop one and then sync to the rest. Export with that preset you have and that does the trick.

In other words, you are correct that the Export function won't crop to the different aspect ratio, but can resize to another aspect ratio -- if you tell it to not preserve the aspect ratio, but in that case you are likely to get some unpleasant and unwanted results.

ah.. virtual copies - I assume that it would be relatively easy after creating the virtual copies and cropping/resizing and outputting to delete all virtual copies

Tony - I don't think you can. LR has no "constrain aspect ratio" checkbox because that's what it always does.

Createsean - So what? They are not really cropped, they are only "virtual crops" that can be changed or cancelled entirely at any time.

Createsean wrote in post #11481007
ah.. virtual copies - I assume that it would be relatively easy after creating the virtual copies and cropping/resizing and outputting to delete all virtual copies

It's easier to delete the crops. If you do as Gatorboy said, crop one and synchronize the others, then all you have to do is the reverse, reset the crop on one and synchronize the others.

tzalman wrote in post #11481025
Tony - I don't think you can. LR has no "constrain aspect ratio" checkbox because that's what it always does

Ah, OK, I'm away from my photo workstation, I guess I mixed up LR with a "normal" resize!

To the OP, there is the option, the alternative to the virtual copy, to do like the below and it should be painless. You can undo the crop -- I'd say a quick way of doing that is to do the cropping last, make sure the aspect ratio is what you need it to be (fits the image export size aspect ratio), sync and Export, then go to the History panel in the Develop module, click below the crop, then Sync. If your processing on the images is different, you just click to check none then check the crop option.

Thanks for the tips everyone. I'll go with the crop, sync export, uncrop sync.

Cool! The "Raw workflow" is a bit "different" from working in "normal' image editors...

tonylong wrote in post #11480920
In other words, you are correct that the Export function won't crop to the different aspect ratio, but can resize to another aspect ratio -- if you tell it to not preserve the aspect ratio, but in that case you are likely to get some unpleasant and unwanted results.

1) You can crop to whatever aspect ratio you like in LR.
2) The Export function doesn't "crop", but it can "resize". The resizing will maintain the aspect ratio the images was cropped to. In other words: You cannot "distort" (stretch) the image.