User manual

8 • Scanning color negatives

ColorQuartet 5.0 Pro

“Negative Profile” window • Functions

• The Negative Proﬁle window contains the Full Exposure and No Exposure sections for setting

the highlight and shadow points, which can be done manually or automatically.

• It also contains Histograms and Reversal Curves for interactive adjustment of the profile and

an Exposure Densities section for entering numerical values.

• NOTE that values for the red, green and blue curves are set individually. Before making any set-

tings, check that you have activated the relevant channel by clicking on the red, green or blue

stripe to the right of the histograms or curves.

Negative profile • Setting the highlight

The Full Exposure section is used for setting the highlight point of the profile.

• When Area % is activated, ColorQuartet finds the highlight automatically.

• The value in the Area % text field indicates how large an area of the image will be burned away

– 0.00 means no burn-away. When a negative is scanned, dust and dirt appear as dark spots

that, in the positive reproduction, may give a false highlight value. You can burn such areas

away by typing in a higher value for Area %. This moves the true highlight value to the left-

hand edge of the histogam so the highlights do not come out too dark in the reproduction.

• To check whether the highlight point found by ColorQuartet is actually part of the image and

not, for example, a speck of dust or dirt, open the densitometer window, choose Point Sample,

click on the white square, and observe the location of the cursor in the feedback window.

• When Fixed Density is activated, the highlight point can be set manually. Drag the relevant

histogram as explained under “

Advanced features in the ‘Negative Proﬁle’ window.” Or type in

the desired value in the Full field for the relevant channel (Red, Green or Blue) in the Exposure

Densities section.

Negative profile • Setting the shadow

The No Exposure section is used for setting the shadow point of the profile.

• When Area % is activated, ColorQuartet finds the shadow automatically.

• The value in the Area % text field indicates how large an area of the image will be blacked out –

0.00 means no black-out. When a negative is scanned, scratches appear as light spots that, in

the positive reproduction, may give a false shadow value. You can black out such areas by

typing in a higher value for Area %. This moves the true shadow value to the right-hand edge of

the histogam so the shadows do not come out too light in the reproduction.