Comments on: The Truth About Saving JPEGs in Lightroom

By: Cynthia

Cynthia — Thu, 28 Apr 2011 18:47:04 +0000

Hi,

I’m a little confused..

At 72ppi, wouldn’t a 4×6 size print actually be 432 pixels wide, mathematically?

At 800 pixels wide, wouldn’t it actually be something like 133ppi?

I’m just trying to get my head around the numbers..

Either would be ok, but they are not the same. Correct?

Thanks for shedding light!

By: Chad T

Chad T — Fri, 04 Feb 2011 18:00:48 +0000

does the photolab formula you have here work for any size print you want??…..like an 11×14 or would it need a whole new set of values?

By: Leslie Nicole

Leslie Nicole — Thu, 11 Nov 2010 14:25:03 +0000

Matt,

Jeffrey Friedl has a comparison of Lightroom export settings for jpeg and says that above 75% doesn’t give much better results than 75%. Check it out and see what you think. I’m wondering which way to go.

http://regex.info/blog/lightroom-goodies/jpeg-quality

By: Alicia Smith

Alicia Smith — Thu, 29 Jul 2010 00:21:43 +0000

Ugh…I’m so new to LR and I am having issues figuring out what resolution to save at for losing the LEAST amount of resolution when compressing to a jpeg. Example…I start with a RAW file, then I simply want to save it to a jpeg and I’m not worried about keeping a large file and retaining as much quality as possible, I just want to make a jpeg file. I have no clue about how to go about this. I do not want to resize the image, so the “resize to fit” is left unchecked. I have left the quality at 100%, but in the resolution area, it wants a number. How do I know what number to give it?? I’m so lame…but I just can’t figure this out for the life of me. Please help!

By: Lisa

Lisa — Sat, 17 Jul 2010 03:26:44 +0000

Cyd,
I found that the best way is to create a folder as an export. Then, I use a CD/DVD burn software and “add data” to the blank disc. There are programs out there that are VERY easy and once your images are edited, you can create multiple cd’s very easily. This is how I do it for my customers. Hope this helps.

By: Pete

Pete — Sun, 18 Apr 2010 22:57:29 +0000

I have the same problem as Mike and William.
Images at 300dpi and approx 25cm on longest length compress from 17mg down to 800kb in Photoshop. Try the same thing in Lightroom and you can only compress down to about 1.2 mg. This causes a lot of extra time re-compressing images in Photoshop, anoying because the people I supply to don’t want image files bigger than 1mg (compressed).

By: Kim Jensen

Kim Jensen — Thu, 26 Nov 2009 09:47:00 +0000

From time to time (when I need a bit of advise) I need to export to a web galleri that only allous the maximum file size of 400 Kb. Can I make Lightroom suggest resolution so I get the best possible file at a maximum of 400 Kbit ?

By: Vilmis @ World In Snapshots

Vilmis @ World In Snapshots — Wed, 16 Sep 2009 12:58:03 +0000

@William – and what about sharpening? Are you have the same settings choice in LR and PS (don’t have PS, so can’t check it myself)

By: Mike Sheehan

Mike Sheehan — Thu, 03 Sep 2009 22:07:34 +0000

I have the same question as William Huan above. Why when exporting from Lightroom and saving from Photoshop using the same exact settings does Lightroom produce a much larger file size?

When cropping large numbers of images for the web (regardless of whether the original is a raw file or not), I like to use Lightroom, because I can work very quickly and it’s easy to go back and make little changes rather than having to open the original in Photoshop again and start from scratch.

I thought the problem might come from tags and other metadata in the files, but even checking “minimize embedded data” doesn’t help.

By: Bernard

Bernard — Tue, 01 Sep 2009 21:15:29 +0000

Hi Matt, what to do with the following. I made some pictures against a Cherry Red backdrop. On screen I managed to get these pics just great and in print they also are OK. Exporting them to JPGs (hi and low res) the red is altered (to an more lunimous and awfull red). Is this a profiling issue?