The ugra/fogra MediaWedge standard proof control element, above.

I provide a range of solutions for printed proofing including a range of proof paper and software RIPs as well as proof analysis and proof optimisation software and high quality measurement sensors. 

Designer? Photographer? Publisher? In-house prepress? When working with certified proofing, it's simply a matter of 'get the proof right and the print will be right on a standard press'. The big advantage is that this brings the decision making process back from press-side to the prepress room or retouching or colour correction area.

Take an image file, which is perhaps intended to be part of a press ready page. (e.g.: the Altona Test Suite Visual image). Of course it is very useful, almost vital, to have an accurate prediction of what's going to happen when this image goes to a particular press. Just how will it reproduce? On-screen softproofing is very useful during colour correction etc. and it can help a lot, but a printed proof is a step up and great to have when possible.
In a press preparation scenario a poor looking proof begs a question, could we improve reproduction using some simple Photoshop adjustments to the elements at this stage - often the answer to this question is yes. It's FAR better that way than leaving the press operator to attempt to fix issues. Get the proof right and the print will be right - IF the process is set up well and running to standard. 

Rather than recommend specific proofing options I'd prefer to talk to you about solutions I work with including gmg colorproof. I feel it's important to discuss your needs and expectations, I think that's better than talking to a salesman?
Click here email me and to find out more.

There's lots more info about proofing here. Also about the prepress process here.