publicsectorslave
Proofs not matching the press have been the bane of printers since proofs were created separately from the press itself. Before the split between press and proofs, we had "press-checks" or "progressive proofs" only.
The good news for modern times, is that great progress has been made since those days. Device profiles and color management technologies address color management issues handily within the scope of their control. Properly implemented and understood, these tools are as good as it gets today. It's the best we have seen since the proof and press were first separated from one another.
The baggage accompanying this new technology is creating all the necessary device profiles.
I get my brain around D-Max(density maximum) better than I do color spaces.
D-Max is a log-10 scale, which means that a D-Max measuring 3.0, has ten times the density(color space) of a D-Max measuring only 2.0.
Film and digital cameras typically live in the 3.0 D-Max range.
Gloss coated press sheets and gloss coated proofs congregate near the 2.0 D-Max range.
Uncoated press sheets and uncoated proofs live around the D-Max 1.5 range.
At the bottom of the D-Max scale is unbleached newsprint and proofs upon such stock, they perhaps achieve a D-Max of 1.35.
You can obviously emulate a smaller color space(D-Max range) on a device that is capable of a larger range(using the right device profile of course).
Attempting to emulate a larger color space utilizing a device capable of just a smaller color space(D-Max) is the real service(education) you provide to your customers, when they complain about their reds, blues, etc. not matching.
So "publicsectorslave", selling a proof that does not emulate your press is of little value to you. It would seem that the device profile you have created for your press when running the customer's intended stock and the appropriate ink set is sadly not reflected in the proof you've shown to your customer.
What I am really saying here is that your Epson proofer should be able to emulate any color space equal to or smaller than it's capabilities when provided with the appropriate device profile. The Epson's absolute color space will change according to it's input stocks and consumables. With the Epson's "best coated stock and inks" it's proofs should be able to emulate reasonably well most press results on any coated stock. Uncoated stocks and newsprint on the press might be better represented by the Epson with similar types of stocks.
No matter what you do, a press or Epson proof will not attain the 3.0 D-Max color space of a Camera.
I hope this helps to clarify a bit? Maybe not?
The fabulous sunset that a photographer saw, shrunk when he photographed it, shrunk again when you proofed it, and hopefully shrinks no further when you attempt to print it.
The post by “botas” seems like a logical approach towards a solution and stability to me.
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