Retired CPO wrote:
Wow, very nice shots! That's living proof that a 2x TC can actually work. Never thought I would say such a thing! Can you share the details?
Thanks for viewing the Hawk images and for the comment. With a the higher end canon lens, the canon EF 2X type 3 extender works quite will. For star images is adds a small amount of distortion at the edge of the field but not much. For regular images I haven't noticed any distortion, but you do loss a few F stops (the 500 goes from F4 to F8 as expected) and the depth of field with the longer focal length requires very careful focusing.