Originally posted by totsmuyco I agree. A lot of the members here are waiting for an improved AF. I'm not a technical person but, from what I've observed faster AF is a double-edged sword. Pentax has to improve camera AF and lens AF. Majority of the Pentax lenses offered in APS-C format are kinda slow. I think there should also be updates on these lenses to improve AF performance. The new 55-300 is a good example. However, removing the aperture lever is making all other cameras obsolete. I bought my K-5II last February 2014. Because of this move, in just two years it became obsolete. It's cruel to people with older cameras if Pentax will no longer have lenses with aperture levers. But who knows? Maybe Pentax is right in doing this. We'll just have to wait and see.
Your camera isn't obsolete because of the apperture lever. There no a single practice/type of lens you could not mount with your K5-IIs and the 55-300 PLM as an equivalent in KAF2 called HD DA55-300. I own it, it does a fine job.
You decide to call it obsolete but that's your choice. It is not like overnight it became a lesser camera or you couldn't buy great lenses for it anymore.
On the opposite, the features present in even old K3 that isn't compatible too that comes with much much better AF to me than K5-IIs or K70 (it is the same AF module indeed) is more relevant as an upgrade yet than the K70 and KAF4. What really count is actual performance and effectiveness than the hype of new KAF4 and the new hybrid sensor PDAF that apply to movies only where the overall performance is still bad anyway.
But the K3 was already available when you brought the K5-IIs, so you did biuy it with the knowledge that a far more effective body was available from day one. A 3 year old body that still much better than K70. You decided you didn't care at that time but now a far less important/visible update that could apply to a single consumer lens with an existing alternative is more important?
TO me you can continue to use you K5-IIs for a few years, it will continue to do it always did. No more, no less.