Resources

There are lots of great websites and videos with more information. I have chosen just a few here that deserve a special mention.

Photography Basics

Photography basics - Spencer Cox
ISO explained

Macro with various lenses and attachments

Extreme macro with regular lenses -Stefan Malloch
Teleconverters and extension tubes on telephoto lenses - Dave Caleb

Macro in the field

Focus stacking in the field - Mark Overmars

Macro in the studio/lab

Wemacro rail setup in detail - Allan Walls
Macro using the Olympus OMD by Emilie Lapin

Lighting for macro photography

Lighting for macro photography

More on focus stacking

Focus stacking by Micael Widell

Some great macro photos for inspiration!

Craig Loechel - Aussie Art Maker
TTL explained