debbiesweds

Hi,this forum has been extremely helpful to me in the past and wondered if I could seek some help again on an issue.
I do wedding and engagement photos and I have spit out digital negatives for many years. Lightroom puts them out and I guess I never understood or knew exactly what size they are. If I wanted to make for face book I went into the image resizing and made the dpi something like 240.
Anyway, one of my engagement shots was given to a local paper and they said it was not the right size - has to be at least 4 inches and 400 dpi - I was not sure how in lightroom 4 to make this size - what is the best way and how should I be sending these digital negatives out of lightroom 4 when I export them - where and how do I say what size and what size is best to give brides and customers - I am confused on this - thank you so much for any help anyone can share!!!

Wahawk Loc: NE IA

DPI is just a "measuring" unit or conversion factor. If they say they need 4 inches and 400dpi, all they really need is 1600 pixels for the 4 inch dimension.

oldtool2 Loc: South Jersey

Interesting, never paid any attention to this in LR. I can do it in PSE but don't see it in LR? There is a 4 X 3 inch crop but don't see anywhere to set the resolution. You can set the resolution to 400 under print but I don't think that is going to do you any good because I don't see any way to save it.

I would do your crop as you want making sure it is at least 4 inches. Then go under printing and scroll down to print resolution, check that box, and set it to 400 ppi. Then do a save.

Before we get into the usual discussion about dpi and ppi below is from LR 4 help.

"Terminology

Resolution is the number of pixels high by the number of pixels wide: that is, the total number of pixels that a device supports.

DPI is the number of dots per square inch: that is, the density of pixels on a device’s screen. The term DPI is used interchangeably with PPI (pixels per inch)."

Jim D

brucewells Loc: Central Kentucky

I usually drop the photo over into PS for resizing, having never pursued the operation in Lightroom. Here's an article that may answer some of your questions:

http://havecamerawilltravel.com/photographer/resize-images-lightroom

Good luck.

Picdude Loc: Ohio

Try this link. I found it through the help menu for Lightroom 4. It appears that you can perform a resize by exporting. It's a process so read through the web page.

http://help.adobe.com/en_US/lightroom/using/WS75C39DDC-B701-4840-A703-0755A5C04878.html

debbiesweds

I would like to thank each of you that took the time and effort to help and to reply to my question, I am going to study these answers, and go into the recommended links and see if I can get what I need from that - thank you all soooo much!!!!

oldtool2 Loc: South Jersey

Do me a favor. If you figure it out post the answer here so we all know. If no body else wants to know at least I would. I can't find anything relating to dpi or ppi except what I posted. I haven't read the link yet though.

Jim D

NOTE WHAT AN IDIOT I AM!!! I keep forgetting that when you export (save) you can scroll down and find a lot of other settings. I rarely have a need for these so don't normally scroll down. I usually just pick my folder, check the file name and hit enter. It looks like the settings you need are just down farther in the export panel. Sorry!

Jim D

rpavich Loc: West Virginia

Here is how you accomplish the task in LR:

Right click the image and choose "export" and you will see the export dialog box.

Here is the section on dpi and size....

oldtool2 Loc: South Jersey

Yep, found it. See my post above. Some times I am brain dead, other times I just don't have one!

Jim D