I am posting an image which was clicked in Corbett a long long time ago when I had just shifted to digital. EOS 10D.
In the early 2000s the elephant population in Corbett and Rajaji, especially those of tuskers had suddenly declined due to poaching. The core areas were not guarded as no one had expected that the poachers will get into the core and slaughter magnificent tuskers with large tusks. I remember seeing a solitary tusker in the dhikala chaur in 2004 and a lot many females and a few makhnas.
This was shot at 420mm using a Canon 300mm lens and a Sigma 1.4x TC, 1/90, f5.6, ISO 100.