Ligthroom questions

[egibaud]

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Hi,

 

I am using Ligtroom to develop my DNG as it looks very intuitive to me. Although I do have a few questions:

 

1- what's best to export: sRGB, Adobe RGB, ProRGB for further printing / or lab processing?

 

2- my default export says 240 pixels resolution. Shouldn't it be 300 pixels?

 

All advice welcome :-)

 

Thank you,

 

Eric

[andybarton]

I always export on ProRGB and cut it back to sRGB right at the end.

 

You may as well work with as much information as you can. It's a bit like working in 8bit when you could be working in 16bit. Why throw half the data away before you even start?

[Guest stnami]

Pro ,16 and 360

[Guest stnami]

.............. and then throw the data away with more PP

[egibaud]

Pro ,16 and 360

 

what do you mean by 16? 16 millions colors? and 360 pixels?

[Guest stnami]

resolution 360, 16 bit and Pro

[haribo]

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sRGB is used for internet purposes only. If you keep everything online and never print, you're fine.

 

My computer/printer is set to adobeRGB across all my design software, QuarkXPress, Illustrator, InDesign, Photoshop. That's why I run the same setting in Lightroom. It garanties the colours will stay kind of the same.

 

In my opinion it makes no sense to run ProRGB when you than have to convert it later again.

 

To be clear, in opposite to CMYK, RGB is not a standard colour setting. Meaning even if the percentage settings per colour are identical the results will always vary, from screen to screen, printer to printer. There is no uniform Red, Green or Blue. If you get your work printed by a professional printinghouse, you'll need to convert to CMYK, which will again change the colours.

 

300 dpi at 'size-as' is sufficient. It garanties best results and is also the accepted size for colour files. That applies to photo files at your local lab or cmyk files for a printing house.

[hdg]

My semi-professional workflow:

 

1. I store my DMR-dng pictures in Adobe-RGB.

2. I "develop" the picures in Adobe-RGB (8 bit) without any convertion.

3. I print the pictures in Adobe-RGB on my Epson R 800 or R 2100.

 

Changing the dpi-rate (in my case 240 dpi) brings no better effects (as to my opinion). You monitor do not need a higher rate than 72 dpi and sRGB only.

Using 16 bit is for professional reasons only. In this case convert the file to 300 dpi. But you do not need to convert to ProRGB because your printing company probably needs CMYK only.

 

Note: Each conversion will reduce the quality!

 

Regards Hans, using PS CS2 and PageMaker, even for professional reasons

[albertknappmd]

Adobe RGB, 16, 300

[haribo]

If you just print on an Epson printer you can speed things up by reducing dpi to 150 or even 100 dpi. You won't see much of a difference (if at all) but your Epson printer will only need half the time to do the job.

 

16 bit doubles the file size which allows you to print bigger without loss of quality.

Most 3rd parties support 16 bit. The only thing you can't do at 16 bit is saving as a jpg.

 

My semi-professional workflow:

 

1. I store my DMR-dng pictures in Adobe-RGB.

2. I "develop" the picures in Adobe-RGB (8 bit) without any convertion.

3. I print the pictures in Adobe-RGB on my Epson R 800 or R 2100.

 

Changing the dpi-rate (in my case 240 dpi) brings no better effects (as to my opinion). You monitor do not need a higher rate than 72 dpi and sRGB only.

Using 16 bit is for professional reasons only. In this case convert the file to 300 dpi. But you do not need to convert to ProRGB because your printing company probably needs CMYK only.

 

Note: Each conversion will reduce the quality!

 

Regards Hans, using PS CS2 and PageMaker, even for professional reasons

[carstenw]

Modern digital cameras are capable of producing colours outside the AdobeRGB space, so I use ProPhoto RGB until export, at which time I use sRGB (which is not only used for the web, btw, but also by some monitors natively, etc.). The cost of using ProPhotoRGB instead of AdobeRGB is a greater distance between colours, since both typically work in a 16-bit data type.

[wda]

I have followed this thread with interest. Colour space chosen depends on the main ultimate use for the images. There is not one general answer as to which is best in my view.

 

David

[haribo]

I have followed this thread with interest. Colour space chosen depends on the main ultimate use for the images. There is not one general answer as to which is best in my view.

 

David

 

 

Correct.