Insects are a vital and amazingly diverse part of our world, so it should come as no surprise that I enjoy studying them. (That's me, Joanie the nature girl.) Equipment needs are minimal. Just get a good field guide and a
magnifier and head out to the field.
I've used small pocket
magnifiers like the
B&L Hastings, for many years, but lately I have been playing with loupes, specifically photographic loupes such as the
Pentax 5.5x loupe. When I see an insect I wish to study, I simply slip an standard index card under it and place the loupe over the top for a better look. The insect is contained, momentarily, within the sides of the loupe (safer for both of us), then released, unharmed, back into the environment after a basic identification has been made. Now, don't get the idea that you need an expensive
loupe like the Pentax. There are many less expensive models that will do a great job. A great choice, here, is the
Carson Bug Loupe. It will cost you less than a field guide and get you started, nicely.