If you want to calibrate a film scanner, you need a reference transparency.

The best are the Hutch colour targets, but they are VERY expensive: Hutch Colour Targets

Otherwise, you will use the industry standard IT8 target. This will give you 98 percent of the results of using a Hutch colour target for about 20 percent of the cost.

A good source of inexpensive, quality IT8 targets is Lasersoft Imaging (makers of SilverFast)

Kodak and Fuji also make these, but they charge a fortune, and a guy in Germany also makes ok ones for reasonable prices: Wolf Faust Affordable IT8 Targets

How to use them:

Once you have the target and reference file (i.e. a file that says what the target colours should actually be), you scan the target and compare it to the reference. From this a translation table (ie profile) is made between what you got (i.e. the colours in your scan), and what you should have got (the actual measured colours of your target).

Higher end scanning software typically has an IT8 calibration routine built in (eg Vuescan, Silverfast). If not, we can use Profilemaker to build the profile for you here - feel free to contact us about this.