Yes, I found it really irritating at first. It's depth of focus is very very short. I stand in front of the plant I'm inspecting and choose a bud. I place the scope on the bud itself, touching it and position myself looking through it. Then I very slowly pull the scope away from the bud maybe a mm at a time until suddenly it all comes into full sharp glorious focus. It takes a bit of fiddling with it to hone your technique but once you're onto it, it's a good device.At the moment, as I said, it simply drives me crazy!