Alert:Windows ATI Radeon 4870 video card / CS5 / CMYK / Problem

A bit of an obscure one this as I know clients with the above graphics card either don’t use Photoshop CS5 or never work in CMYK but I’m putting this information out there for people who may see the same problem.

With current and recent drivers switching screen mode in Photoshop (the F key) causes the display of a CMYK image to go saturated/incorrect.
I always advise clients the F key is a great way to view your images against black or white as well as the default grey surround. The display of the image against black allows you to spot weak / grey shadows and against white allows you to check highlight areas as they would print on paper.
Unfortunately with recent Windows ATI drivers and Photoshop CS5 *and* CMYK images the colours within the image distort in the different display modes. This does not happen with an RGB image!
Because I prepare images for rerpo I do need to have accurate CMYK previews so have invested in a Nvidea GTX 550Ti card with 2GB of memory, this card does not have the same problem and its extra memory is a real bonus when opening lots of images in Open GL mode. It also has the advantage that I can use the Graphics card processors (Cuda cores) to help calculate and apply noise suppression using the latest version of Neat Image noise reduction.
When I first started using Neat image it took up to 60 seconds to process an A3/300dpi image, now with the help of the new video card this is reduced to a few seconds.
Reading round the edges it would appear that Adobe engineers are using HP workstations with Nvidea graphics cards when developing Photoshop, the card I have bought is quite modest (approx £100) but is sufficient for Photoshop, clients using Adobe Premier will benefit from a faster Nvidea card that will aid real time video rendering.
All a little sad really as I was more than happy with my ATI card till now, but its more important that I can trust my screen and that’s why I made the change.
Stephen
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i1 display 2 support under Lion

There wont be any.

Well that’s the short version. Since i1match software relies on the software transition layer called “Rosetta” to run on Intel Macs and “Rosetta” is dropped from OSX 10.7 (Lion) it is not possible to directly run the program on a machine running Lion without some very faffy workarounds.
The new i1Publish software does not support the older hardware but it does (surprise) support the new Xrite monitor calibrators they have just released.
Since there really is no compelling imaging reason to upgrade to Lion then I strongly advise that you don’t, you will save money and be able to easily calibrate your screen for a colour correct workflow.
However! at some point an upgrade will become important (newly released software/patches etc) that need Lion or one of its successors; I will therefore be testing out the new screen calibrators in the near future and report back.
In the meantime you can read some detail here from Rob Griffith with a very kind offer if you bought your i1 display 2 from them recently:
Xrite are not kind, they could easily have supported the older hardware on the new i1 software if they wanted to, its the kind of rough behaviour that comes from dominating the market by buying your biggest competitor (Gretag Mackbeth)….
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OSX Lion

Because of the way the new Apple operating system will work there are problems with older legacy programs including colour management programs from xrite such as i1match many of you use to profile your screens.

Until I have tested work arounds and solutions I don’t recommend that clients upgrade to Lion just yet.
To be honest the upgrade looks to be less than compelling so you wont be missing much in the meantime.
Stephen
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Advice: 2.0.9 Firmware update for Canon 5D Mk II

Canon have just released this update which when applied to the camera will improve performance with UDMA 7 type cards. There are other bug fixes too so its worth doing.

You can download the new firmware from here:
(select the firmware button then click on either the OSX or Windows link that shows up)
Be sure to follow the advice given to the letter to install this, if in doubt add it to the list of items to do when I’m next onsite with you.
Stephen
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