Oh my goodness! That is fantastic! I've tried countless times to get similar results without success, so I salute you and your work... I've used a Tamron 500mm mirror lens and 1.4x Tamron TC, as well as a Sigma 505-00mm with 2x Sigma TC but the images don't come out sharp enough like this. I have to manual focus, unfortunately and I wear glasses so that may explain why or it's just poor technique. Glad to see such inspirational and spectacular results!
