Pentax 645 adapter plate for Actus?

[wallpaperviking]

Just received this email regarding a Cambo lens plate for the Actus that provides manual aperture control for modern electronic Pentax 645 lenses...

https://cambouk.wordpress.com/

What do you guys think?  Are the Pentax lenses up to scratch for this purpose?  Do they compare to modern Hasselblad H and Phase lenses?

The Pentax WA zoom looks very appealing indeed.. 

[wallpaperviking]

Was just wondering about the Pentax 645 lenses again, after seeing they had a 28mm - 45mm zoom.

With Cambo's adapter plate, this does allow basic aperture control with such a lens right? 

This is taken from Cambo's blog..

"The Pentax lens plate is manual, it does have the benefit of a lever to change the aperture when the lens is already fixed to the Cambo Actus. This is because Pentax lenses have a manual aperture control and we can take advantage of this."

So I take this to be similar to the Nikon G adapters, that give you a basic change of aperture..

Can anybody confirm this? 

Anybody used the 28mm - 45mm zoom?  Seems like it could be awesome, albeit very heavy.. 

Thanks in advance!

[tsjanik]

The consensus is it's a wonderful lens; however, as you know it's very heavy, to the point I'm not inclined to carry it very far.   If I were using the Cambo, I would look at some of the older and very inexpensive manual Pentax lenses first, e.g. the 35mm A is close to performance to the zoom and costs about 400 USD.
Attached a handheld shot and crop that illustrates contrast and edge performance.
Tom

[Craig Magee]

The adapter has 1/2 stop clicks I think, i had one on test but can't quite remember. It was very well made so would take the larger modern zooms easily.