Originally Posted by
Manfred M
Andre - I thought I had answered that in #11 where I suggested: "matte paper that I usually reserve for B&W or portraiture prints and a lustre paper that I use for everything else."
Dmax, vibrance, etc. are all fine to know, but in the end, I primarily look at the paper finish as to the key driver for the paper I plan to use.
Other key factors in longevity are factors like no optical bleaching agents (OBA). As mentioned by Dan, these do give the images a very bright look, but do deteriorate over time. Specs are sometimes hard to find, especially with some of the the third party manufacturers, but the words "bright" or "vibrant" can be taken to suggest that these papers contain OBAs. As I noted in #11; OBAs need ultraviolet light for that effect to kick in, so sunlight or fluorescent lights will trigger this action. Tungsten light bulbs have no effect on OBAs. I suspect halogen lights might trigger them and I'm not sure about LED lights.
Rag / cotton papers last much longer than wood based ones and anything that says lignin-free is going to give a longer life. Acid free papers are also long life papers and the second best choice are pH buffered ones. If this is not listed you can assume it is an acidic paper, which means that the colours will deteriorate over time.
In terms of finishes; in general a glossy paper will give you the brightest colours and deepest blacks, but these have the downside of reflecting more light which means one has to be careful of the angle one uses these on. I used to do a lot of glossy work, especially for shots of athletes in action, but really have stopped doing that type of photography. They can work very well for older people with weathered faces as they tend to have higher contrast.
Matte papers give more muted colours and blacks, but will give you a softer looking image. I prefer these for prints of women, families and children as these tend to give softer looking images. I have been using matte papers for the limited number of B&W landscapes I have been printing, just because the scenes tend to line up with the interpretation I was looking for.
My "go to" paper has been a lustre finish, especially for general colour prints. It seems to give me the brilliant colours I am looking for without the high reflectance issues there are with glossy finishes. The glossy and lustre finishes on these papers come from a thin resin coating, so the surface finish is a plastic. All plastics do yellow over time.
I am planning to do some experimenting with some of the beautiful fine art papers that are on the market as part of the Print 52 exercise. The only downside with these is that they are quite expensive and the surface finishes tend to be on the matte side. I have not printed on any of the canvas or metal finish papers, so can't comment there.
The other thing I am looking at experimenting with are anti-fade coatings. I had used these in the past, but they tended to give the image a slight yellow tinge (yellow is the compliment of blue, so the UV rays are blocked by it). I understand that this will double the life of the inks, if one is using archival, acid-free paper.
In the wet darkroom days, there was one more variable, which was paper tint for B&W papers Off-white papers were used for portraiture work, but we can emulate that on our printers these days.
I hope this helps clarify your question.