fa lens
Posted 19/05/2009 - 22:23
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The lens will work as a normal lens, ie the Power Zoom functions won't work but AF etc will.
Joining the Q
Posted 19/05/2009 - 23:29
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I had one of those lenses and sold it to a K200D user, thinking Power Zoom would work on that camera just like it does on the K20D. Unfortunately, it does not. The lens can be zoomed manually though.
The FAJ 28-80mm delivers similar image quality while being a great deal smaller and lighter.
The FAJ 28-80mm delivers similar image quality while being a great deal smaller and lighter.
~Pete
Posted 19/05/2009 - 23:34
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impotentspider wrote:
I thought the contacts inside the lens mount would power both SDM and the Power Zoom on the old FA lenses?
It may well power them but there's no provision in the camera's firmware to control their functions.
I thought the contacts inside the lens mount would power both SDM and the Power Zoom on the old FA lenses?
Joining the Q
Posted 19/05/2009 - 23:35
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I thought that too, ISpi, and was so confident that I stated it as fact in my eBay listing. I was wrong. I don't know, or can't remember, why it doesn't work on that camera.
~Pete
Posted 19/05/2009 - 23:36
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hefty1 wrote:
I was under the impression that the zoom switch was actually on the lens itself, and all it needs is power supplying to it..through the contacts inside the mount?
impotentspider wrote:
I thought the contacts inside the lens mount would power both SDM and the Power Zoom on the old FA lenses?
It may well power them but there's no provision in the camera's firmware to control their functions. I thought the contacts inside the lens mount would power both SDM and the Power Zoom on the old FA lenses?
Posted 19/05/2009 - 23:37
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It works fine on my K10D, at least as far as power zooming goes. The other functions don't seem to be supported.
Best regards, John
Posted 19/05/2009 - 23:38
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I was thinking about functions like size tracking which would be controlled by the camera itself? Never having owned one I'm prepared to be proved wrong.
Joining the Q
Posted 19/05/2009 - 23:38
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hefty1 wrote:
No, it doesn't even power the zoom motor according to what my buyer told me and what I've read since.impotentspider wrote:
I thought the contacts inside the lens mount would power both SDM and the Power Zoom on the old FA lenses?
It may well power them but there's no provision in the camera's firmware to control their functions. I thought the contacts inside the lens mount would power both SDM and the Power Zoom on the old FA lenses?
I think Dimitrov is wrong on this occasion.
~Pete
Posted 19/05/2009 - 23:41
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None of the digital cameras can control the fancy PZ functions, but the K20D and K10D can power the zoom motor. You control it by twisting the ring on the lens.
Interestingly, the camera also continuously actives the AF whilst zooming (even in AF-S mode), and also the lens retracts to its smallest size as the camera is switched off.
Interestingly, the camera also continuously actives the AF whilst zooming (even in AF-S mode), and also the lens retracts to its smallest size as the camera is switched off.
~Pete
Posted 19/05/2009 - 23:46
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Without the fancy bits they don't sound like much of an advantage over a manual zoom then; I'm guessing they're comparatively heavy beasts too?
Joining the Q
Posted 19/05/2009 - 23:52
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This one's quite heavy, yes (though I'm not sure the Power Zoom parts are much to blame for it). Also the motor consumes a lot of battery power, especially because you end up playing with it for the sake of it!
~Pete
Posted 19/05/2009 - 23:55
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Well if one ever turns up at auction I'll have a play with it but I won't be putting one on Santa's list
Joining the Q
Posted 20/05/2009 - 01:08
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Did you know that you have to slide the zoom ring backwards/forwards to engage/disengage the power zoom function. I can't remember which way is which but in one direction the words Power Zoom are revealed underneath the zoom ring.
If your camera body has the two internal SDM contacts inside the lens mount it should work.
The buttons work only with some of the Z series film bodies and din't even work on the MZ-S.
If your camera body has the two internal SDM contacts inside the lens mount it should work.
The buttons work only with some of the Z series film bodies and din't even work on the MZ-S.
Peter E Smith - flickr Photostream
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1283 posts
17 years
darfield sth yorks
will this lens work on a
k200 as its got power zoom
http://www.srsmicrosystems.co.uk/2728/Used-Pentax-SMC-FA-28-80mm-F3-5-4-7-Power-...
neil
pentax k3
DA* 300 f4 DA* 50-135 f 2.8 smc DA* 16-50 f2.8 50mm f1.7 pentax1.4xhd converter
Panasonic Dmc Fz200