It’s not difficult to scare a tree frog, especially the little ones. Stepping on some of the lower branches or positioning a tripod leg in the bramble bushes can be enough to scare them.
That’s why I prefer to use a 180mm lens instead of my 105mm macro lens. But even the 180mm forces you to position yourself close to the branches and then carefully bending over to get close enough . To my knowledge there are no real macro lensen above 200mm. So to keep even more distance I tried to (ab)use the AF-S NIKKOR 300mm f/4E PF ED VR combined with an extension tube. Read more