Colorcast with exported Black & White Photos from Lightroom

New Here ,
Aug 06, 2020

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When converting a color photo to black & white and adjusting the image, it looks fine in Lightroom. However, when exporting the photo and for example posting it on Instagram, the photo suddenly receives a blueish colorcast. The same applies if someone downloads an image through a shared Lightroom Gallery and posts it somewhere.
The problem is, Lightroom still keeps the photo as an RGB file. I know, I can change an individual file in Photoshop to grayscale, but it's not really a solution to the problem.
Is there anyway to assign a grayscale profile in Lightroom to a photo?
It really would be great, if Lightroom could convert a color photo to a true grayscale one. It would not interrupt my current workflow.

 

The attached file shows on the left, the Lightroom file and on the right the same file posted on Instagram with no further adjustments. But, the problem is not only visible on social media, but even in the Finder of MacOS.

TOPICS
Feature request, Import and export, Presets or profiles, Problem or error

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Aug 06, 2020 0
Adobe Community Professional ,
Aug 06, 2020

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I see that the image on Instagram has a greenish cast.

So Instagram obviously does something to the image that makes it display wrong.

I have no idea what they do, I would normally save the image and examine it, but they have disabled saving.

I think you should complain to Instagram about this.

The images on your website look fine.

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New Here ,
Aug 06, 2020

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I honestly think the problem is related to the file being a color file. I used to work as a photo editor for a magazine for a long time. We came across the same problem every once in awhile. When a profile is not set to sRGB or grayscale, the images change their color if uploaded to websites or social media. I think they use some software to convert the images, but it's not doing a good job converting the color profiles. Therefore you always need to supply the perfect file. 

Especially when sharing images, it would be great, if Lightroom could just export black and white, as grayscale files. 
Or if there would be a Plug-In doing such a thing...

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Adobe Community Professional ,
Aug 06, 2020

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I managed to download the image from Instagram using Inspect element in the browser.

The profile was stripped out, which shouldn't be a problem, because most browsers assign sRGB to untagged images.

But the histogram in Photoshop clearly indicates that the colors are not neutral, note especially the cyan in the highlights.

With a neutral image, there should be no colors in the histogram, just gray.

 

image.png

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Adobe Community Professional ,
Aug 06, 2020

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I honestly think the problem is related to the file being a color file
it would be great, if Lightroom could just export black and white, as grayscale files. 

Support for grayscale profiles outside of Photoshop is, as far as I know, non-existent. And the Internet standard is sRGB.

Browsers wouldn't know what to do with a grayscale file, and different browsers might display the image wildly different.

And since it's only Instagram that displays wrongly, it's obviously an Instagram problem.

But you can of course try to upload a true grayscale image to Instagram and see what happens.

Make sure to try viewing it in different browsers.

 

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Aug 06, 2020 0
Adobe Community Professional ,
Aug 06, 2020

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So people don't have to download the image you have attached to your post please Edit your post to remove the Attached screen shot and Include it in the body of the text of your post.

You do that by Clicking the "More..." link at the bottom of your post, Selecting "Edit Message" and then use the "Insert Photos" icon in the tool bar at the top of the Post/Reply/Edit dialog box like this.

2020-06-07 19_13_42-Camera Raw Brush tool problem - Adobe Support Community - 11189555.png
Thank you.

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