lossless saving / raster upscaling solutions for reproducing onto canvas?

[Koukouvaya]

hey everyone

i'm sending some digital images to a printer who is going to be printing some onto rather large canvasses. (up to 60x38") .

these digital images are size variable, but about the area of 4500x4500. some RAW, some jpg.

there is also a series of images sized 1000x1000 (which are digital artand did not involve the use of a camera)

i have never done this before and he has requested i mail him a dvd with the catalogue of images to be converted onto the catalogue. his preferred format is tiff.

i have photoshop cs4 and the most of the pictures where taken with a sony alpha 350

don't want to schoolboy error myself at this point, haha!

my question is - how to ensure my images are sent in the format that will best reproduce onto various physical media. size is not a problem, as they will be travelling on data DVDs

also any other advisory stuff or a heads up on what to expect from this?

your advice is very much appreciated

-k

 

[POAH]

just save them as TIFF's

 

[smooth]

Also make sure you are using the same colour profiling as your printer uses.

As for the scaling - I use tiff's at work when I need any large prints/graphics done - just make sure you create them from your original raw files

 

[chip]

just make sure you create them from your original raw files

Exactly. If the original is jpeg, there is no benefit in saving as TIFF, except to keep your printer happy!

 

[Koukouvaya]

hey guys, thanks for the help.

whats the deal with tiff anyway, are they lossless or something?

i never see much benefit and they're sooooo bloody big.

but hey, i'm not a printer

 

[smooth]

Jpegs are more heavily compressed.

Ideally printers will require a TIFF or a PDF to the exact specification - both size, res and profile to what they are printing to.