K-mount adapters for Pentax new-mount cameras

Started 11 months ago | Discussions thread
Alex Sarbu Forum Pro • Posts: 10,054
Re: K-mount adapters for Pentax new-mount cameras
1

Roland Karlsson wrote:

Alex Sarbu wrote:

Roland Karlsson wrote:

DougOB wrote:

Pentax already has developed lenses that were not compatible with older cameras,

Ah - but what we are talking about is forward compatibility for Pentax lenses, i.e. that a camera shall be able to use (almost) all older lenses.

Or backward compatibility if we take the camera as a reference.

Ah ... but it is much easier to plan for forward compatibility Sort of. And I like to talk about forward compatibility because it is a harder thing to get right just with intuition. You need to think.

I'm not sure I get this. Are you talking about building the lenses so they'll be usable with future cameras? (as opposed to building cameras so they'll be usable with older lenses).

I don't expect any other evolution of the K-mount, after KAF4.

Forward compatibility for cameras has never been a plan for Pentax, and it is almost impossible to achieve.

Not impossible. It only means no performance tweaks (unchanged protocols), no electronic aperture control, no in-lens AF motors, aperture rings on all lenses - depending on how far do you want to go. It only means making FA lenses instead of D FA*s.

Basically, it only means Pentax stays in the stone age

(And I guess I just proved your point)

ha ha ... you just had to try to shoot down my argument

Wait, what? Wasn't I agreeing with, and reinforcing your point?

Alex

 Alex Sarbu's gear list:Alex Sarbu's gear list
Ricoh GR III Pentax K-5 IIs Pentax K-1 II Pentax smc DA 21mm F3.2 AL Limited Pentax smc DA 70mm F2.4 AL Limited +8 more
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