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Begin rant ---
If you look at the pro photographers at any major sports event, look at what they're shooting with: 2.8/300, 2.8/400, 4/500, 4/600, 4/200-400. These lenses are pin-sharp wide open (practically diffraction-limited), virtually free of chromatic aberration, and focus end-to-end in a split-second. Take this example and consider just how much glass the AF motor has to move (contrary to the video title, this is the Mark I variant):
Is there any excuse for the DA* 60-250mm lens to perform no faster than this when there is far less glass in the lens?
Absolutely not. The Canon EF 70-200mm f/2.8L IS II USM goes from end to end in about 0.3 seconds and the motor in that lens is itself moving more glass than the one in the DA* 60-250mm lens is.
Also, we need more AF points, better frame coverage with the AF points, and smarter tracking algorithms. The K-3 II is a marked improvement over previous Pentax DSLRs when it comes to AF, but it is still easily bested by top-of-the-line Canon and Nikon DSLRs. Please see this thread:
https://www.pentaxforums.com/forums/6-pentax-dslr-discussion/181885-analysis-...provement.html
There is
ABSOLUTELY NO EXCUSE for such poor autofocus performance, especially from your lenses. Ricoh, it's time to step up your game.
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End rant ---
Just had to blow off some steam after seeing a pro shoot with the new Canon EF 4/200-400L today.
I'm writing this partly because I'm jealous of C&N pros that enjoy having hyper-sharp fast telephoto primes and incredible AF performance available to them with tracking that works every time, without fail. I know Ricoh is working on it, but they need to make significant advances, not incremental improvements, with each generation or they'll get left in the dust. As long as Ricoh fails to deliver a truly competitive level of performance especially with their lenses, Pentax will remain a non-option to pros.
—DragonLord
Last edited by bwDraco; 09-15-2015 at 11:14 PM.