FaceBook photo image issue?

So my images look good on my ipad but when I look at them on my PC some of the darker images get real grain filled. I am using a 4k monitor and graphic card on my PC. It is like night and day difference. My when looking at the image below it look great on my Ipad but here and on facebook on my PC it looks like garbage. Please tell me what is wrong because I can not figure this out???

Changed setting on export..

The image is 1000ish pixels wide and 57k. It has been heavily compressed to the point where there are extensive artefacts visible. This is, in part, because whatever compression you apply, Facebook then goes an compresses it even more, thus reducing image quality. Viewing this on a big monitor just makes it even more obvious.

I googled a few weeks ago and came up with:

For best results Facebook uploads should be 2048px max sRGB and 99KB max - though this may now be may now be only 50KB.

That makes sense. I tryed a lot of tests late last night and found that the image is great in lightroom until I exported it. So I changed settings quality setting on export and got a lot better image but then had issues again once in uploaded it..GRRR I wish facebook and other websites would let us do what we do to the max..

I absolutely agree that it's frustrating how Facebook diminishes your image quality. On their end, the problem is that a huge number of photos get posted every day and shrinking each one -- whether it's megabytes or kilobytes -- adds up to massive savings in storage and bandwidth. Plus I'm sure the majority of their users are on mobile devices or laptops with relatively low-resolution screens. At some point they must have considered this and decided it was a worth-while tradeoff because it saves them money in a way that most people either wouldn't notice or wouldn't care about.

Two issues here.
iPad makes even crappy picture looking good. FB makes good picture looks like crap.

This is why I post mostly mobile phone pictures on FB, don't trust ipad for IQ and using my desktop with dedicated GFX card to see how good picture really is

i just figured this out recently, y'all don't tell anyone okay?

if you upload PNG files to Facebook it will not compress them more. I think since they are lossless compression there is no point in compressing them again, thus your files (at least the image part of them) remain just as they were before.

Martin's comment about pixel width is true to my knowledge, but I think the file size limit is higher than that.

edit: looks like the 99K file size is still in effect.

I also read about PNG, but I'm fairly sure they stopped or are about to stop this loophole - PNG is far bigger file size.

They change stuff all the time so it's entirely possible. But they allow 25 megabyte video uploads and are moving more and more supporting video, so who knows?

100kb is pretty lame any way you look at it.

Well even squarspace limits you to a 20mb file so.. and I have some that are over 25mg so..

ThomasDidymus wrote in post #17887642
Well even squarspace limits you to a 20mb file so.. and I have some that are over 25mg so..

are you saying you upload 20-25 megabyte still image files?

if so, that is your problem. Definitely do not let Facebook, SquareSpace or pretty much any other web based app resize your images that much. Always export them from RAW at the maximum size they will be viewed online, if the app resizes for thumbnails etc, there's not much you can do about it.

Thank you all for the help. I have never really messed with the export setting in Lightroom. This week I am reading the export chapter of Lightroom cc by Scott Kelby just to get a better idea. I did a re-size for my monitor and the image is stunning.

ThomasDidymus wrote in post #17888781
Thank you all for the help. I have never really messed with the export setting in Lightroom. This week I am reading the export chapter of Lightroom cc by Scott Kelby just to get a better idea. I did a re-size for my monitor and the image is stunning.

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The great thing about LR is that you can save your own Export presets. I have lots of them, any time I think I will need to export images to the same destination more than once I save a preset for it. It makes life so easy to do that, it also means that I don't have to keep any local JPEG copies of my images, just export, use, delete.

Alan

With Facebook, I follow one of two processes.

1) For the more general "sharing" I tend to export photos with the size allowed here in POTN (what is it, 1280 pixels?)...I find our images here can be pretty pleasing at that size, although I tend to go smaller with the Height dimension...

2) for more "serious" Facebook photos I'll go wider, up to say 1600 pixels. This can be very cool when users open the image then select the "Full Screen View Mode" -- Facebook will either display the pic in its "original" size (what you exported/uploaded) or if you have a smaller screen it will shrink it to fit.

Of course the thumbnails you see when you scroll through a post will look lousy, but go the Full Screen mode and you may be pleased!