Just joined up, hoping to find good advice and constructive critique, when I figure out how to post images

I use a K500, Sigma 100 -300mm, Pentax 55-300mm, Sigma 17-90mm, Kenco 1.4x converter, 3 x ext tubes.
My preferences are macro, birding, texture/shape/colour, some landscape, geological formations.......
Re-learning and revising old knowledge in the new digital environment......
Please be gentle....
