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Alizarine · 05-03-2011, 08:14 PM

Will these lenses only work on the PZ series and the K10/K20? Can I zoom it manually on a K-x? I saw a copy in a secondhand shop and I'm not sure if the zoom is broken or I just don't know how to use it X__x

bjake · 05-03-2011, 09:57 PM

Should work same as the lens you got with your camera,full auto.You should be able to zoom the lens both auto and manual.Would be able to give better advise if you included the series of the lens.
Jake

Adam · 05-03-2011, 10:21 PM

I don't think the K-x can power zoom, although theoretically it should be able to (maybe I'm wrong). In any case, you can still zoom any PZ lens manually.

Ole · 05-03-2011, 10:34 PM

Originally posted by Alizarine

Will these lenses only work on the PZ series and the K10/K20? Can I zoom it manually on a K-x? I saw a copy in a secondhand shop and I'm not sure if the zoom is broken or I just don't know how to use it X__x

You switch between manual and power zoom by pushing/pulling the zoom ring back and forth.

When the zoom ring is pulled towards the camera body it is in manual zoom.

The K-x doesn't support power zoom but do not despair. In my experience manual zoom is more accurate and hence preferable.

Alizarine · 05-04-2011, 01:15 AM

Originally posted by bjake

Should work same as the lens you got with your camera,full auto.You should be able to zoom the lens both auto and manual.Would be able to give better advise if you included the series of the lens.
Jake

it's an FA 28-80 sir...

Originally posted by Adam

I don't think the K-x can power zoom, although theoretically it should be able to (maybe I'm wrong). In any case, you can still zoom any PZ lens manually.

Hmm, that seems a good tweak.. hope there's a way XD ...the added weight from the motor should have some use =))

Originally posted by Ole

You switch between manual and power zoom by pushing/pulling the zoom ring back and forth.

When the zoom ring is pulled towards the camera body it is in manual zoom.

The K-x doesn't support power zoom but do not despair. In my experience manual zoom is more accurate and hence preferable.

Ooh, so there's a mechanism to it! Thanks for the heads up sir Ole. Will go back to the shop to try that (and hopefully find the lens is not broken)

Lowell Goudge · 05-04-2011, 05:53 AM

The power zoom motor will function but the other options such as snap zoom to return to a preset focal length, image size tracking which zoomed as your focus point changed to keep the subject framed. And zoom through the focal length range during exposure, plus returning the lens to shortest configuration at power down are all lost. Pentax never supported the PZ camera functions in their DSLRs although this was promised for the K10D

RonHendriks1966 · 05-04-2011, 08:20 AM

I used this one on K-7 and that works. So maybe also on K-x if it can run enough energy.

selar · 05-05-2011, 10:57 PM

How do you control the zooming action - from the body, from the lens?

spystyle · 07-09-2013, 06:34 PM

From the lens

tclausen · 07-10-2013, 02:34 AM

Originally posted by Lowell Goudge

The power zoom motor will function but the other options such as snap zoom to return to a preset focal length, image size tracking which zoomed as your focus point changed to keep the subject framed. And zoom through the focal length range during exposure, plus returning the lens to shortest configuration at power down are all lost. Pentax never supported the PZ camera functions in their DSLRs although this was promised for the K10D

That's getting a little tedious, that Pentax promises support for something, then don't deliver. PZ in the K10D, Astrotracker for the K-01 - what else has they promised, then failed to deliver in the promised bodies?

I've always been curious as to power zoom myself, what's the real use of it? It's not like turning the zoom-ring is that hard, so it can't be that......

spystyle · 07-16-2013, 09:19 AM

Hey my (new to me) K20 supports the power zoom function of my 28-80mm FA 3.5~4.7

It's a noisy hoot

05-03-2011, 08:14 PM	#1
Alizarine Veteran Member Join Date: Dec 2010 Location: Manila Photos: Gallery \| Albums Posts: 2,190	Power Zoom Lens on a K-x Will these lenses only work on the PZ series and the K10/K20? Can I zoom it manually on a K-x? I saw a copy in a secondhand shop and I'm not sure if the zoom is broken or I just don't know how to use it X__x

05-03-2011, 10:21 PM	#3
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 42,369	I don't think the K-x can power zoom, although theoretically it should be able to (maybe I'm wrong). In any case, you can still zoom any PZ lens manually. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com's high server and development costs are user-supported. You can help cover those costs by donating. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

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05-03-2011, 09:57 PM	#2
bjake Veteran Member Join Date: Mar 2011 Location: Eastern Kentucky Posts: 416	Should work same as the lens you got with your camera,full auto.You should be able to zoom the lens both auto and manual.Would be able to give better advise if you included the series of the lens. Jake

05-03-2011, 10:34 PM	#4
Ole Administrator Join Date: Sep 2006 Location: Copenhagen, Denmark Photos: Gallery \| Albums Posts: 3,853	Originally posted by Alizarine Will these lenses only work on the PZ series and the K10/K20? Can I zoom it manually on a K-x? I saw a copy in a secondhand shop and I'm not sure if the zoom is broken or I just don't know how to use it X__x You switch between manual and power zoom by pushing/pulling the zoom ring back and forth. When the zoom ring is pulled towards the camera body it is in manual zoom. The K-x doesn't support power zoom but do not despair. In my experience manual zoom is more accurate and hence preferable.

05-04-2011, 01:15 AM	#5
Alizarine Veteran Member Join Date: Dec 2010 Location: Manila Photos: Gallery \| Albums Posts: 2,190 Original Poster	Originally posted by bjake Should work same as the lens you got with your camera,full auto.You should be able to zoom the lens both auto and manual.Would be able to give better advise if you included the series of the lens. Jake it's an FA 28-80 sir... Originally posted by Adam I don't think the K-x can power zoom, although theoretically it should be able to (maybe I'm wrong). In any case, you can still zoom any PZ lens manually. Hmm, that seems a good tweak.. hope there's a way XD ...the added weight from the motor should have some use =)) Originally posted by Ole You switch between manual and power zoom by pushing/pulling the zoom ring back and forth. When the zoom ring is pulled towards the camera body it is in manual zoom. The K-x doesn't support power zoom but do not despair. In my experience manual zoom is more accurate and hence preferable. Ooh, so there's a mechanism to it! Thanks for the heads up sir Ole. Will go back to the shop to try that (and hopefully find the lens is not broken)

05-04-2011, 05:53 AM	#6
Lowell Goudge Pentaxian Join Date: Jan 2007 Location: Toronto Photos: Gallery \| Albums Posts: 15,397	The power zoom motor will function but the other options such as snap zoom to return to a preset focal length, image size tracking which zoomed as your focus point changed to keep the subject framed. And zoom through the focal length range during exposure, plus returning the lens to shortest configuration at power down are all lost. Pentax never supported the PZ camera functions in their DSLRs although this was promised for the K10D

05-04-2011, 08:20 AM	#7
RonHendriks1966 Pentaxian Join Date: Jan 2009 Photos: Gallery Posts: 8,714	I used this one on K-7 and that works. So maybe also on K-x if it can run enough energy.

05-05-2011, 10:57 PM	#8
selar Veteran Member Join Date: Jul 2007 Location: Sydney, Australia Photos: Gallery \| Albums Posts: 2,035	How do you control the zooming action - from the body, from the lens?

07-09-2013, 06:34 PM	#9
spystyle Veteran Member Join Date: Mar 2009 Location: Maine, USA Posts: 424	From the lens

07-10-2013, 02:34 AM	#10
tclausen Veteran Member Join Date: May 2012 Posts: 1,399	Originally posted by Lowell Goudge The power zoom motor will function but the other options such as snap zoom to return to a preset focal length, image size tracking which zoomed as your focus point changed to keep the subject framed. And zoom through the focal length range during exposure, plus returning the lens to shortest configuration at power down are all lost. Pentax never supported the PZ camera functions in their DSLRs although this was promised for the K10D That's getting a little tedious, that Pentax promises support for something, then don't deliver. PZ in the K10D, Astrotracker for the K-01 - what else has they promised, then failed to deliver in the promised bodies? I've always been curious as to power zoom myself, what's the real use of it? It's not like turning the zoom-ring is that hard, so it can't be that......

07-16-2013, 09:19 AM	#11
spystyle Veteran Member Join Date: Mar 2009 Location: Maine, USA Posts: 424	Hey my (new to me) K20 supports the power zoom function of my 28-80mm FA 3.5~4.7 It's a noisy hoot

Power Zoom Lens on a K-x

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