[TareqPhoto (Tareq)]

Originally Posted by skysurfer

Canon 100-400mm f/4.5-5.6L II is an excellent option. It is actually 70mm aperture f/5.6.

Not cheap (A$2600), but an excellent lens for both astro and terrestial photography.

https://www.shopbot.com.au/m?q=canon+100-400L

I don't have version II of this lens, i have only version 1, and i am planning to sell it locally then add more and buy MKII, but i am not mainly a wildlife or birding photographer, but good to upgrade anyway.