Adobe has made available a new RC (release candidate) version of Lightroom, numbered v.4.3. On its own, this is clearly not worth an entire blog post, or even a tweet. But there’s one new feature that you Retina MacBook Pro owners might be interested in: HiDPI support.
In addition to the obligatory new lineup of supported cameras (listed below) Lightroom “now supports HiDPI displays within the Develop Module.” This means that when you are editing a photo, Lightroom will use every pixel in the viewer window to map to a pixel in the photograph. This is in contrast to the normal Retina display mode which maps four on-screen pixels to each notional display pixel.
The result is that your photos will look as good as they do on your Retina iPad.
Canon PowerShot S110
Canon PowerShot G15
Canon PowerShot SX50 HS
Casio Exilim EX-ZR1000
Casio Exilim EX-FC300S
Nikon D600 (full support)
Olympus PEN E-PL5
Olympus PEN E-PM2
Olympus STYLUS XZ-2 iHS
Panasonic DMC-GH3
Pentax K-5 II
Pentax K-5 IIs
Pentax Q10
The update is available to download right now, but as always with pre-release software, be careful etc. You know the drill.
Source Adobe