Luminous Landscape Forum
Equipment & Techniques => Medium Format / Film / Digital Backs – and Large Sensor Photography => Topic started by: wallpaperviking on January 29, 2016, 06:26:47 am
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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.. :)
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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!
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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
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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.