Opinions on lens adapters as a means to save money?
Opinions on lens adapters as a means to save money? Hello, I've been getting more and more into wildlife photography and I would like in the coming year to make a jump into a high quality telephoto prime. I'm kind of locked into Sony right now, not that I regret it, but they do not have affordable telephoto primes. However, I was looking at the Canon EF 500mm f4 IS L USM with the Sigma EF to E mo...