Re: Retina display resolution...

[Dreambird]

According to what I know... which is not much sometimes... the resolution of my iPad Air 2 should be 2048x1536. I've got an awesome wallpaper app on the iPad which gives me choices but not that one... so do you think it would be better to go with 2880x1800 or 1900x1200? Neither is quite right on but work.

Also... do you prefer Adobe RGB 1998 or sRGB 1EC61966-2.1 profile?
I generally use Adobe RGB 1998 for wallpapers on my laptop.

[Paddy]

I would assume that the higher resolution one would be better as the lower res one could look pixelated/not as sharp. That said, I don't see enough of my iPad home screen to even bother with wallpaper. I almost always have an app running - and if I don't, I'm not looking at the iPad!

As for Adobe RGB 1998 or sRGB - I generally calibrate my monitors. I don't think an iPad Air 2 can display the wider colour gamut - the newer iPad Pros can (though they use P3, not Adobe RGB). So probably sRGB...

[Dreambird]

I don't always see my iPad screen either but still like the "pretty walls"...  I have 4 spaces on my MBP so having a different wall for each one is handy... I see a little more of that one!

Generally for wallpapers I have just for use on the MBP... I use Adobe RGB 1998 but leave ones downloaded for the iPad at sRGB which they generally come as.

As for resolution I found this for the MBP:

If you have a MacBook Pro with Retina display and anytime opened the system information program, you might have noticed that the MacBook Pro's native resolution is 2880x1800px but you can only set it to the scaled version of 1920x1200px in the system settings. The reason for this is that the full resolution looks ridiculously small on a 15" screen. But if you got good sight, you can still work on it (my opinion).

So there's a workaround if you want the full resolution... most of my MBP walls are 2880x1880 and whatever... they look fine the way they are so don't think I'll mess around there.

iPad Air 2 that I have is 2048x1536... most walls I find aren't in that size so I choose something else but if you want you can choose 1024x768 and double it in Photoshop. Or... go for one a bit higher. It's not something I want to spend eons doing... I look in my favourite places now and then. Just about all of my lock screen walls are 1024x1024 and they look OK.

I don't even sync the MBP wallpapers to the iPad... prefer to keep them separate.

[Paddy]

Re: the resolution on a MBP, might want to read this:

https://everymac.com/systems/apple/macbook_pro/macbook-pro-retina-display-faq/macbook-pro-retina-display-hack-to-run-native-resolution.html

Generally, the display looks best at the default. IMHO. (pixel density is highest - giving a crisper appearance).

And doubling the size of anything in Photoshop just makes the pixels bigger - or interpolates it to add more pixels, both of which degrade the image. There are lots of big images out there - plus you can always take your own.

[Dreambird]

Thanks Paddy,
That helped to clear the confusion!