One thing or another has meant I haven't been able to get out and do what I enjoy lately but I did manage an hour or so this afternoon armed with my Sigma 150-500mm plus 43mm of extension tubes (31mm + 12mm). The min focus distance is normally 2 metres with this lens but by adding ext tubes I've reduced it too about 1 metre which is just about right for the larger insects like damselflies/dragonflies and butterflies at the 500mm end.
Common blue
First darter
Mating blues
Partially back-lit tortoiseshell butterfly
Common blue







