You know I have been curious for a long time. And I am fixing to start experimenting.
I just ordered the Pentax K-3 to see if it is going to satisfy my needs. For birding.
I have the 7D and I really like the crop factor. I put the brakes on at about ISO 800, with the 7D.
The K-3 is going to give me about the same ISO as the Canon Mark IV. around 1200-1300 ISO, with a 1.5 crop.
Not sure yet if it is going to work out, We will see? But the new Sony sensors are much better than they were a few years ago. And the cheap crop sensor cameras are everywhere now. And getting pretty good reviews.
So I will be shooting with the Sigma 500mm prime and Sigma 300mm F/2.8 prime with the Pentax K-3 with in body IS? I'm looking forward to seeing just how far I can push it, and how it stacks up against the 7D and mark IV, and the new Canon tele lenses?
After dealing with Pentax in the past. My hopes are not too high. But I have to test it.
I am a die hard crop guy..