10/06/2026
Square crops of otherwise unedited photos to show how I use my DIY colour checker.
I experimented with ones made from card but I found the best was to actually use my paint pigments. Using titanium white, black plus some colours I am very familiar with painted onto a canvas board.
I take photos before I varnish (otherwise varnish can be a bit like putting behind glass with extra reflections).
I take the photos outdoors, as my paintings are small to medium in size. I choose a time of day when the lighting is more neutral ('natural light' varies a lot in quality and temperature).
Avoid any cast shadows.
If I want to emphasise texture, brighter colours and use of metallics, I use direct light. I don't over prints of paintings which use metallics or heavy textures.
If I want to avoid extra texture, such as canvas weave, I wait for sun behind clouds and soft shadows. Too overcast, though, and it can grey out colours.
I use my 'best' camera which captures detail (sometimes, I blur detail slightly when editing). They can look different than the progress pics as I use my phone for convenience in uneven artificial lighting.
I look at the colour checker to help choose the best exposed photos plus look at which are sharpest, then choose one for editing.
When I edit, I straighten edges, crop backgrounds and don't go overboard with any adjustments. More particular if it's for a print.
Some recent paintings to edit. Cropped some of the art out to show the colour checker.