Hi, I have just upgraded my Aperture from 2 to 3 and cant find a desaturation brush which was amongst the tools in Aperture 2.

Try this thread Where's the Desaturate brush gone?

Thanks for the quick reply, Frank. I had already had a look there, and (correct me if I'm wrong) it seems to be implying that the only way is via an "Enhance" adjustment brick - there is no quick brush that you can do directly from the tools on the top of the screen if you're working in Full Screen mode?

there is no quick brush that you can do directly from the tools on the top of the screen if you're working in Full Screen mode?

In addition to the "Enhance" sliders that Frank pointed to, I see the "Saturation" in the "Brushes" Drop-down in Full-screen mode.

Only you have to set the amount of saturation first to a low value using the slider in the "Saturation" brick of the adjustment panel.

You may have to add the "Saturation" brick first to the "Adjustment" tab from "Add Adjustment > Quick Brushes > Saturation"

To add a "Saturation" brick permanently to your adjustments click the cogwheel in the Saturation brick and enable "Add to Default Set".

You can also save the setting - with the adjustment slider positioned as you want it - as an Effect:

Effects > Save as an effect.

Regards

Léonie

Wow, that's a really good and complete answer, Leonie, thank you. I haven't used the effects before, but that's going to be a big help. Is there any way that that can be accessed easily from Full Screen?

Thanks

Mandi, if you look at my first screenshot - that is the viewer in full screen mode.

If you click the ( i ) -button in the top menu bar, this will add the inspector panel at the right border and you can do all customizations without leaving full screen mode.

Regards

Léonie