I am doing more and more wildlife photography (bit difficult not to living in India), and am thinking about getting a longer faster lens.
Most of my shooting is early in the morning, in the jungle/woods. every time i hope to come across tigers/leopards/bears, but these sightings are rare, so i amuse myself birding.
Currently i use a 5D MKIII and my 70-200 + 2x tcIII. The f/2.8 gives me the speed in the wee hours, and i pop on the TC when i need length and the light is better, but it is always a trade-off, and often i find myself in the situation where 200 is too short, but with the tc on the ISO/shutter speed is no longer ideal (there is an obvious point where i think adding the TC vs more extreme-cropping yields comparable results).
I am thinking about a 300mm 2.8, but the new version II is a little out of my budget. So either a second hand version I or maybe a Sigma EX 300mm f/2.8 APO DG HSM.
Any other suggestions? Has anyone any experience with the Sigma? How well does it take TCs? unfortunately TDP does not have the sigma in their comparison charts.
I guess this is more of a feasibility study for me. I'm trying to find the right/best price point.
Renting is an obvious solution for longer lenses, but it is not so easy here... the few places that have these lenses are so overwhelmed, you need to reserve your lens weeks, if not months in advance. I am just not that well organised!