What is the difference between lustre, glossy and metallic finishes when ordering prints
Lustre print finish :
Lustre is not as shiny as glossy but not as flat as matte paper either. As far as print options go, it's an "eggshell finish" and is textured in a way that hides fingerprints well. Many portraits and wedding photos are typically printed using this finish as it gives kind of a classic look.
Glossy print finish :
Glossy is a shiny and rich-looking style option. The kind of prints most people are commonly used to. It tends to show fine detail well, but also shows fingerprints if you put your hands all over them. Aways a safe choice, just don't get your hands all over them or frame or stick in an album to avoid the mess.
Metallic print finish :
Metallic is a high gloss finish print style option with very saturated colors. It really pops and makes it appear as though the image is printed on metal (think : back side of aluminium foil). Really cool but one thing to wary of is that the bright areas (highs) of the photo tend to be really over-highlighted on metallic paper. Other than that, this looks awesome.