Canon 1Ds MKIII with 100-400mm lens @ ISO 160
Here’s the Problem
Arguably,Lightroomis the most popular raw processing and image handling program currently available. It’s taken the industry by storm, and with good reason. Again, arguably, theEpson 3800is the most popular and highest performing desktop printer currently on the market.
So far so good. But for people that want to make the highest quality B&W prints there’s a gottcha. To do this, (unless you’re going to tint your images and print monochrome in colour mode) you need to engage the 3800’sAdvanced B&Wmode. This lets the printer only use primarily the black, gray and light gray inks, producing wonderfully rich toned B&W prints without any colour cast whatsoever.
When printing from Photoshop this isn’t an issue. But when printing from Lightroom it potentially is. The problem is that Lightroom’s native colour space isProPhoto RGBand there’s no way to change it. For colour printing this isn’t a problem since it holds your raw image in the widest possible colour space and then you output to your printer through an appropriate printer profile and rendering intent. Standard stuff.
But when printing with Epson’s Advanced B&W mode (ABW) you want to set Lightroom’s printer colour management mode to "Managed by Printer". This allows you to engage ABW in the printer driver’s dialog box. But – here’s the rub. ProPhoto RGB colour space is Gamma 1.8 rather than 2.2. This means that your prints will appear too dark.
Here’s The Solution
Thanks toEric Chan, one of the members of theAdobe Camera RawandLightroomteam responsible for printing, there is an elegant solution, and it’s available for free and is simple to implement. Eric has written a small program that builds gray curves into ICC profiles. All you need to do is visit Eric’s site and download one of these "profiles" for your favourite paper and use it from within Lightroom using the directions provided.
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