This had to be my most difficult photo ever. Our guide stopped the jeep and pointed way, way out on the plain. He said there were lions eating a wlldebeest. I could barely see them . With the camera, and lens I could just about see them a bit better than with the naked eye. Zooming in helped. Not expecting too much, I took the photo, and using the crop tool in ADOBE RAW, I was able to save the photo. I must add, that before I took this trip I went on-line to a photo site, trying to get tips on safari photography. They suggested 2 things. The exact lens which I already had, and 2- An extral large bean bag which I promptly bought. I owe this photo to the bean bag. This was shot at 1/250, f8.0, 500 mm (750 mm cropped), and ISO 800.