I can relate to this.
I am in West Africa now, and have seen a number of wild Chimps and Gorillas, seriously far in the jungle. Rain, mud, fog, etc. play hell on the cameras, and I can only get to within a few hundred yards before I am told that's close enough and/or the animals leave.
The photos are worse than bad.
I just spent a week at a great conservation project where I was just a few yards away from many, many chimps for 30+ hours. (behind electric fence).
The photos are the best I have ever taken in my life. (not online yet, coming soon @theroadchoseme)