I spent a considerable time yesterday in my spinach patch practising insect photography with the 100-400mm +1.4 converter Fuji system (my lighterweight replace for the stolen canon gear). Certainly it can produce as good results in terms of focus and has the advantage of much less noise than the 7Dii. It is much slower to focus but possible with lots of practice. The first four images, one of my favourite dipteran species, the Bee fly, followed by several of the many Hymenoptera (bees) species visiting the leaves to warm up. Lastly two predators awaiting a meal - my constant Robin companion and a Hoverfly species that predates other insects.