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Author Topic: Lightroom Export Settings?  (Read 3096 times)

Offline Ochotona

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Lightroom Export Settings?
« on: November 13, 2014, 05:40:50 PM »
What are y'all's settings when you export a photo from LR5 for posting on this site or elsewhere on the web?  Specifically I'm wondering where you set the 'quality' slider (and why), where you set the 'pixels per inch' (and why), and if you use 'sharpen for screen' or paper settings and how those differ from the other sharpening you can do in the develop module.


Thanks!

Offline bandmandq

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Re: Lightroom Export Settings?
« Reply #1 on: November 13, 2014, 08:45:54 PM »
For files that are posted on the web, 72 pixels per inch.  that is all the web displays anyway.  They load faster as they are smaller files. 

I have never moved the quality slider on the JPEG setting.  Now not sure why, I may have read it in Scott Kelby's Lightroom 3 book (I started with LR3 and have moved up to LR4 and deputing on LR5 if the money comes about)

I do not know the science behind it but Andy Civil will know.

If I am printing at some lab, I sharpen for printing.  Most of my files are exported for Sharpen for Screen.  My Smugmug site has sharpening setting also and I am not sure if I have them use those are not.

I will tell you this, for Project 52, as we are suppose to send a link, AND because I can, if I want, sell those shots from my website, I upload 300 PPI but that might be overkill, not sure.

Again, I just do as I have read if the person that said it makes since.  Then I forget the why usually and just do.

Not sure if this makes since, it is late and in a hurry to sleep.  :)
Canon T2i w/18-135mm lens, 55-250mm, 100-400mm f/4.5-5.6L

Offline Ochotona

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Re: Lightroom Export Settings?
« Reply #2 on: November 14, 2014, 09:36:07 AM »
Thanks Bandman, good info.  I didn't know the 72ppi limitation of the web.  Looking forward to learning what the others do.

Offline Doodle

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Re: Lightroom Export Settings?
« Reply #3 on: November 14, 2014, 09:43:55 AM »
I can't help ya bud. I do all of my exporting of final works via PS.  I save all my images after I have tweaked them in PS and let LR be my source.
In PS, I have (lately) been using "Save for Web". Otherwise, I tried to use a fairly high PPI count in case I wanted to print something out right on the spot.
Take your camera with you dammit. You can't take your next "best photo" if your camera is sitting at home in the bag, now can you?

Offline Ochotona

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Re: Lightroom Export Settings?
« Reply #4 on: November 14, 2014, 10:26:30 AM »
Jeez, what good are you Doodle?!

Here's one intersting thing I found while trying to answer my own questions.  Although the LR slider lets you select export quality settings in increments of 1 from 1-100, quality only changes in steps or categories such that the ranges below result in identical exports:

60-69
70-76
77-84
85-92
93-100

Source: http://havecamerawilltravel.com/photographer/exporting-jpegs-lightroom-quality-settings

Offline Ochotona

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Re: Lightroom Export Settings?
« Reply #5 on: November 14, 2014, 10:42:55 AM »
...and this site which shows with several examples that in most cases a quality setting in the 70-76 range produces results nearly indiscernible from 100 and saves a lot of file size.   

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

Offline Doodle

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Re: Lightroom Export Settings?
« Reply #6 on: November 14, 2014, 11:03:01 AM »
Jeez, what good are you Doodle?!

Here's one intersting thing I found while trying to answer my own questions.  Although the LR slider lets you select export quality settings in increments of 1 from 1-100, quality only changes in steps or categories such that the ranges below result in identical exports:

60-69
70-76
77-84
85-92
93-100

Source: http://havecamerawilltravel.com/photographer/exporting-jpegs-lightroom-quality-settings

That's what she said.    :-\
Take your camera with you dammit. You can't take your next "best photo" if your camera is sitting at home in the bag, now can you?

Offline Suka

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Re: Lightroom Export Settings?
« Reply #7 on: November 14, 2014, 06:39:02 PM »
Ocho, I don't understand what you are referring to with the PPI for exporting.  I don't have LR5, but use LR4 a lot for almost all of my PP and "exporting"- emailing.  Haven't seen anything in LR4 regarding Pixels Per Inch for exporting shots.  The quality setting I use is somewhere around 80'ish, which from my research on the Web(s) is the okay setting for posting on-line.  Can't remember how I set up LR for posting shots on Flickr, but that is how I post photos here -through Flickr.       

Offline bandmandq

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Re: Lightroom Export Settings?
« Reply #8 on: November 14, 2014, 06:50:10 PM »
Suka,

Ocho is referring to the Export feature in the File menu.  It is where you "save" a photo after you have made adjustments and it just creates a JPEG file for printing or giving to someone on a disk lets say so they can go print them somewhere.

Take a look at this screen shot.  the PPI choice is just below the quality slider. And this is the LR4 screen as I have not upgraded yet.
Canon T2i w/18-135mm lens, 55-250mm, 100-400mm f/4.5-5.6L

Offline AndyCivil

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Re: Lightroom Export Settings?
« Reply #9 on: November 14, 2014, 11:18:43 PM »
The only measure that actually matters for an exported file is the number of pixels. However, that important number can be calculated by multiplying the physical size in inches by the dot spacing in dots (pixels) per inch. In this case, if one of the numbers is assumed (e.g. you're printing an 8" x 10" picture) then the other measure (e.g. dpi) becomes important as a proxy for the number of pixels. A printer will usually work on 300dpi, so if you walk in to a print shop with a file, and ask to print it at a certain size, and they calculate that the resulting dpi is too low, then they may say simply "you should have at least 300dpi to print a decent picture". But they don't really care what the dpi figure in the file is. You could walk in to a print shop with a photo that's four feet tall and 72dpi and it would print a 5 x 7 quite nicely - and it would print at at least 300dpi because it had been scaled from four feet to five inches!

And I don't think it's safe to say that the web is limited to 72dpi any more. That was indeed the general resolution of CRT displays, but we've moved on from there.

As for what size a file should be - go to a site you like, or another user you admire on your target site, and view an image and see how big it is. For example in Firefox, go Tools, Page Info, and click on the "Media" tab. Scroll to the photo and see its properties.

Offline bandmandq

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Re: Lightroom Export Settings?
« Reply #10 on: November 15, 2014, 06:22:21 AM »

And I don't think it's safe to say that the web is limited to 72dpi any more. That was indeed the general resolution of CRT displays, but we've moved on from there.

As for what size a file should be - go to a site you like, or another user you admire on your target site, and view an image and see how big it is. For example in Firefox, go Tools, Page Info, and click on the "Media" tab. Scroll to the photo and see its properties.

This makes total sense. We use to think we would never fill up an 80MB hard drive on a new Mac SE!

But I think the monitors have not improved at all. Shots I take look perfect on the LCD screen on the back of my T2i. Then pulling them into Lightromm, it adds camera shake and out of focus not to mention poor exposure!  I think it is a racket to get you to buy more "stuff!"  (And it sure works!)  ;)
Canon T2i w/18-135mm lens, 55-250mm, 100-400mm f/4.5-5.6L

Offline Ochotona

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Re: Lightroom Export Settings?
« Reply #11 on: November 15, 2014, 02:00:06 PM »
Thanks Bandman for answering Suka better than I could have.  And thanks Andy for your thoughts.  If I've got you correctly, in Bandmans screen shot he did it just right.  He set the output size to 8"x10" and the dpi to 300 which would result in a perfectly printed 8x10.  If he was going to use his shot only for the web he would probably set the size in pixels and not worry about the dpi - right?

Offline AndyCivil

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Re: Lightroom Export Settings?
« Reply #12 on: November 15, 2014, 05:54:15 PM »
... he did it just right.  He set the output size to 8"x10" and the dpi to 300 which would result in a perfectly printed 8x10.  If he was going to use his shot only for the web he would probably set the size in pixels and not worry about the dpi - right?
Exactly. And he's using the program to work out the number of pixels for him.

As an aside, a JPEG contains a measure of "dpi" but it has NO bearing on the actual data at all. It's just a tag in the metadata, and I have a theory that it's there for scanners, so that you can remember what resolution you scanned your document at. It's irrelevant for photographs.

Offline Ochotona

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Re: Lightroom Export Settings?
« Reply #13 on: November 17, 2014, 09:06:15 AM »
Thanks everybody.  Very helpful!