[cali92rs]

Seeing the prices that old Takumars go for these days, and the numbers of people who buy them to stick them on their mirrorless Sonys, I'm not entirely convinced.

Are you implying that Takumars are expensive?
I go to keh.com and the most expensive ones are about $300, which is about the same price as Samyangs. On eBay, even really rare, mint Taks are about $900, which is pricier, but not more so than a lot of decent modern lenses, and not in the same league as Otuses
People also stick Contax, Minolta, Olympus, Canon FD, etc etc lenses on them. Which Sony gets precisely $0 for. And none of those other lenses will work with the new Pentax FF.
I'm not saying Pentax should forego it's backward capability. I am saying that backward capability does little to entice those that don't already have old k-mount lenses.

[Rondec]

I am sure there will be plenty of folks who experiment with old lenses on the new full frame camera. Why not? But I think there will be plenty of sales of auto focus lenses for it too - maybe some will be Tamron and Sigma lenses, but it is not exorbitant to drop 1300 dollars on 24-70 f2.8 or 2000 on a 70-200 f2.8 if you are spending 2500 dollars on your camera and the glass measures up to expectations (both with regard to sharpness and auto focus performance).

[pathdoc]

The price of the DFA 150-450 has fallen nearly $600 from its introductory price in about 6 months.

By the time it's Takumar vintage, they'll be paying us a fortune to take it!

[monochrome]

I am sure there will be plenty of folks who experiment with old lenses on the new full frame camera. Why not? But I think there will be plenty of sales of auto focus lenses for it too - maybe some will be Tamron and Sigma lenses, but it is not exorbitant to drop 1300 dollars on 24-70 f2.8 or 2000 on a 70-200 f2.8 if you are spending 2500 dollars on your camera and the glass measures up to expectations (both with regard to sharpness and auto focus performance).

There might be a few people that own a lot of old lenses who actually buy the FF and one or two really nice new zoom lenses, especially if they don't have old zooms. Old gear and new gear are not mutually exclusive. In fact, using old gear sometimes keeps people in K-mount

[Rondec]

There might be a few people that own a lot of old lenses who actually buy the FF and one or two really nice new zoom lenses, especially if they don't have old zooms. Old gear and new gear are not mutually exclusive. In fact, using old gear sometimes keeps people in K-mount

Sure.

I think zooms are what has come along the farthest over the last thirty years and a lot of the older zooms aren't that great, whereas primes are good and Pentax coatings have always been excellent. Of course manual focusing on a digital SLR with auto focus -- even a full frame one -- won't be as easy as folks remember on their ME Super's from by-gone days.

[pathdoc]

Of course manual focusing on a digital SLR with auto focus -- even a full frame one -- won't be as easy as folks remember on their ME Supers from by-gone days.

Even with focus assist (peaking or otherwise) and/or catch-in focus? I'm not saying that it's flawless, of course, but it does help. Only time will tell what the prospects for swapping out the focusing screen are, though.

[Rondec]

Even with focus assist (peaking or otherwise) and/or catch-in focus? I'm not saying that it's flawless, of course, but it does help. Only time will tell what the prospects for swapping out the focusing screen are, though.

Focus peaking is only useful if you are using Live view on Pentax cameras. Unless this camera features an EVF, focus peaking or a zoom focus feature will not be available. Catch in focus feels a little limited as well.

Don't get me wrong, you can manually focus with an OVF and plenty of folks do, it is just if you are trying to grab photos of anything moving, it gets a little tougher if you don't have auto focus.

[Glorfindelrb]

Focus peaking is only useful if you are using Live view on Pentax cameras. Unless this camera features an EVF, focus peaking or a zoom focus feature will not be available.

But it's easier with a larger VF and focus peaking may be there if it's an hybrid VF.

[Rondec]

But it's easier with a larger VF and focus peaking may be there if it's an hybrid VF.

Sure. I'm not arguing its impossible. I just think a lot of folks will use auto focus lenses more than manual focus lenses, even though maybe it is a crutch that more recent photographers lean on.

[pathdoc]

Unless this camera features an EVF, focus peaking or a zoom focus feature will not be available.

Why not? It's got a back screen, hasn't it?

[Glorfindelrb]

As he said if you quote all the post. He excluded live-view after the first sentence.

[Rondec]

Why not? It's got a back screen, hasn't it?

I meant in the viewfinder. I find it pretty clunky to use live view on anything but a tripod.

[Supernaut]

Maybe an overlay with only the focus peaking highlights is possible technically. It would be nice to have and be a good combination of old and new tech

[filoxophy]

Maybe an overlay with only the focus peaking highlights is possible technically. It would be nice to have and be a good combination of old and new tech

Yes, EVF technology has apparently progressed mightily in the past few years but other than a few Fujis there's been zero convergence with OVFs. If Pentax can pull off a major step forward in this area, I think it would be a real coup for the brand.

[rvannatta]

There might be a few people that own a lot of old lenses who actually buy the FF and one or two really nice new zoom lenses, especially if they don't have old zooms. Old gear and new gear are not mutually exclusive. In fact, using old gear sometimes keeps people in K-mount

I'm one of those. with the glass collection that I have there is no way I might drift to a brand x. I haven't had a lot of optical respect for old zooms, but I like a wide ranging 'normal' zoom for walking around and who can stop with
just buying one..