Today I tried a 5D IV and 7D II with 600mm f4. Beside the Pentax K1 and DFA150-450.
That was really interesting and a fairly different reality from the reality of reputation on online saying.
First, ergonomically Canon is a pain. The front and back wheels of Pentax are right next to fingers when holding the grip.
On the Canon interface, the front wheel in vertical on the top and the back wheel in the large wheel at the bottom.
Second, AF testing... well, what normhead posted some times ago , was right, the AF lag on both 5D IV and 7D II is annoying, you press the shutter, wait.... and finally AF starts moving...fast.
On the K1, you press shutter and AF starts moving right away.
Third, AF speed: well, with the DFA150-450, as soon as the focus limiter is set from 6m to infinity, there is not noticeable difference in AF lock time between the Pentax and both Canons.
Fourth, build quality, both Canons feel very plastic and less rugged than the Pentax I own.
Fifth, yeah, that's true, Canon AF is faster especially at close distances where the Canon lens AF spins really fast. That mean, mount a Tamron 150-600 or Sigma 150-600 C on a Canon and you won't get the better and cheaper than most people imagine on this forum... but reading online.
Last but not least... we were reviewing a stream of photos taken with 5D IV, sorry but I was impressed by how many photos were out of focus... From reading Pentax forum, I was thinking that Pentax AF was junk compared to Canon. How did people come to this conclusion? In the future, I think I should be more careful when reading online opinions, it's much better to evaluation ourselves by trying real cameras in the real world. Am I missing something?
Last edited by biz-engineer; 04-22-2017 at 12:57 PM.