No, nothing like that. When you wrote "buying a third of a K-70" it made me curious how much the K-70 cost. That's all.

On 7/24/2021 18:07:56, P. J. Alling wrote:
I assume that the adapter is made of the more expensive mechanical parts, and at a much lower volume so there would be a much lower return due to the economics of scale.  That is unless you have good numbers on the quantity of Sony users who see serious quality in Pentax Auto Focus lenses.

On 7/24/2021 2:24 PM, John wrote:
K-70 is only about a hundred dollars more than the adapter $546.95 vs $439.00 for the adapter.

On 7/24/2021 11:53:09, P. J. Alling wrote:
You know, sometimes I know what I'm talking about.  (Too bad the quotes list is gone...)

On 7/24/2021 7:42 AM, Alan C wrote:
Thanks John. Now I understand why PJ says you're buying a third of a K-70!

Alan C

On 24-Jul-21 07:57 AM, John Francis wrote:
I assume there's a motor in the adapter (drawing power from the camera).
The first two pictures (the lens-facing side) show a screw-drive shaft,
and also the two contacts that could provide power and digital signals
for newer AF lenses, and may even provide power for power zoom lenses!
I'd guess there would also need to be a microprocessor to translate
between the various signalling protocols, but that's not going to add
a whole lot to the cost.


On Sat, Jul 24, 2021 at 06:50:45AM +0200, Alan C wrote:
How on earth is screw drive AF possible?

Alan C

On 23-Jul-21 09:43 PM, P. J. Alling wrote:
I've never seen one so expensive before, but then again I've never seen
an adapter that also adapts screw drive AF either.

I kind of doubt that you'll find anything cheaper that actually will
auto focus a K mount lens on a mirrorless body.?? You'll be buying about
a third of the working bits of a K-70.

On 7/23/2021 3:33 PM, [email protected] wrote:
To use my lenses on an e-mount body is there a less-expensive yet
full-featured adapter alternative to the Monster?

https://www.bhphotovideo.com/c/product/1627137-REG/monster_adapter_la_ke1_pe

ntax_k_to_sony.html



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