Full moon

I have tested few times my telephoto lens with 1.4x extender. Today I managed to get focus in position. Total millimeters in the picture 840 in full frame camera. Maybe some day I will test this combination with my old crop frame camera.

However, I think 1.4x extender is nice tool, but requires training. I used it in the summer with my 150mm macro to take photos of butterflies.