KP continuous autofocus lenses in Video

halimj7 · 12-10-2017, 10:14 AM

Bismillah

Can anyone please tell me which lenses allow continuous AF in video? I have tried the 40mm f2.8 xs and the 18-135 on the KP. None work. I get the message "continuous AF not allowed with this lens". Thanks.

Adam · 12-10-2017, 12:16 PM

It's supposed to be all DC and PLM lenses, so it's strange that the 18-135mm isn't working for you!

halimj7 · 12-10-2017, 12:52 PM

Bismillah

Can anyone verify first hand what lenses actually work or have worked for them? Thanks.

Dericali · 12-10-2017, 05:16 PM

The review on this website makes the function sound pretty dire. Would be interesting to know if anyone has had better results.

Pentax KP Review - Movie Mode | PentaxForums.com Reviews

halimj7 · 12-10-2017, 06:31 PM

Bismillah

I have tried these steps, included in the review, and am not given the option to enable continuous AF in liveview. Maybe I am doing something wrong. Is there another step that must be done before this? Anyone know? Thanks

**Crooski** · 12-11-2017, 01:33 PM

I can confirm AF.C only works with the HD Pentax-DA 55-300mm F4.5-6.3 ED PLM WR RE

halimj7 · 12-11-2017, 01:53 PM

Originally posted by Crooski

I can confirm AF.C only works with the HD Pentax-DA 55-300mm F4.5-6.3 ED PLM WR RE

Bismillah

Thanks. What is your experience with the lens? Is it worth buying just for video?

SSGGeezer · 12-11-2017, 03:17 PM

Originally posted by halimj7

Bismillah

Thanks. What is your experience with the lens? Is it worth buying just for video?

I don't know about video, but the lens is a wonderful all around lens that focuses like lightning and silently. It is not very fast though so your mileage may vary.

Dericali · 12-12-2017, 01:30 AM

Originally posted by halimj7

Bismillah

Thanks. What is your experience with the lens? Is it worth buying just for video?

I would recommend going into a camera store that stocks Pentax and trying out some of the lenses they have, I'm sure most of the newer lenses support it. The DFA 28-105 could be a good lens for this.

However, given that the review I posted earlier makes it seem like the continuous autofocus doesn't work very well, I'd recommend testing this feature before buying a specific lens to use for it.

**Crooski** · 12-12-2017, 05:58 AM

Focus is not super fast. but it works continuously in Video

halimj7 · 12-12-2017, 07:09 AM

Originally posted by Crooski

Focus is not super fast. but it works continuously in Video

Bismillah

That is what I have seen from other non pro video Cameras, even Sony's and Panasonics. The only cameras I have seen do exceptionally in this regard is Canon with their dual pixel AF, but most of their cameras don't have 4K. It seems to me Pentax is not that far off in video. Im hoping they can expand their lens support for C AF and 4K support by the time the successor of the K3II comes out.

Belcik · 07-16-2020, 11:15 AM

Damn....
I bought HD DFA 28-105 based on the review Pentax KP Review - Movie Mode | PentaxForums.com Reviews to have conitnues AF.... now I am with lenses that are useless (no applicable for the task I was buying them...)

Can anyone update the review, not the make other lose their money?

----
Well, good to know, that even with transgran purchase, Russia, I can still try to return....

Belcik · 07-17-2020, 10:12 AM - **2 Likes**

I have received official response. Issued several queries on all languages I know for different Ricohs

Russians responded first.
As of 2020.07.17, only KAF4 support video continuous focus:
HD PENTAX-D FA★50mmF1.4 SDM AW
HD PENTAX-DA 55-300mmF4.5-6.3ED PLM WR RE
HD PENTAX-D FA 70-210mmF4ED SDM WR
HD PENTAX-D FA★85mmF1.4ED SDM AW

**Kobie** · 07-17-2020, 03:55 PM

Originally posted by Belcik

I have received official response. Issued several queries on all languages I know for different Ricohs

Russians responded first.
As of 2020.07.17, only KAF4 support video continuous focus:
HD PENTAX-D FA★50mmF1.4 SDM AW
HD PENTAX-DA 55-300mmF4.5-6.3ED PLM WR RE
HD PENTAX-D FA 70-210mmF4ED SDM WR
HD PENTAX-D FA★85mmF1.4ED SDM AW

Interesting. According to page 5 of the KP product page on Ricohs website, it only works with the HD DA 55-300 PLM.
Scroll down to Movie Recording

bobmaxja · 07-17-2020, 03:59 PM

The 50, 70-210 and 85 were introduce after the KP start to sell, normal!,

12-10-2017, 10:14 AM	#1
halimj7 Forum Member Join Date: Oct 2017 Posts: 76	KP continuous autofocus lenses in Video Bismillah Can anyone please tell me which lenses allow continuous AF in video? I have tried the 40mm f2.8 xs and the 18-135 on the KP. None work. I get the message "continuous AF not allowed with this lens". Thanks.

12-10-2017, 12:16 PM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595	It's supposed to be all DC and PLM lenses, so it's strange that the 18-135mm isn't working for you! Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

12-12-2017, 05:58 AM	#10
Crooski Loyal Site Supporter Join Date: Feb 2013 Location: Rozenburg , Zuid-Holland Photos: Gallery Posts: 3,681	Focus is not super fast. but it works continuously in Video Last edited by Crooski; 12-12-2017 at 05:59 AM. Reason: Forgot video

07-16-2020, 11:15 AM	#12
Belcik Veteran Member Join Date: Feb 2009 Location: Russia,Moscow Photos: Gallery \| Albums Posts: 377	Damn.... I bought HD DFA 28-105 based on the review Pentax KP Review - Movie Mode \| PentaxForums.com Reviews to have conitnues AF.... now I am with lenses that are useless (no applicable for the task I was buying them...) Can anyone update the review, not the make other lose their money? ---- Well, good to know, that even with transgran purchase, Russia, I can still try to return.... Last edited by Belcik; 07-16-2020 at 10:10 PM.

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12-10-2017, 12:52 PM	#3
halimj7 Forum Member Join Date: Oct 2017 Posts: 76 Original Poster	Bismillah Can anyone verify first hand what lenses actually work or have worked for them? Thanks.

12-10-2017, 05:16 PM	#4
Dericali Senior Member Join Date: Jul 2016 Location: Berlin Posts: 298	The review on this website makes the function sound pretty dire. Would be interesting to know if anyone has had better results. Pentax KP Review - Movie Mode \| PentaxForums.com Reviews

12-10-2017, 06:31 PM	#5
halimj7 Forum Member Join Date: Oct 2017 Posts: 76 Original Poster	Bismillah I have tried these steps, included in the review, and am not given the option to enable continuous AF in liveview. Maybe I am doing something wrong. Is there another step that must be done before this? Anyone know? Thanks

12-11-2017, 01:33 PM	#6
Crooski Loyal Site Supporter Join Date: Feb 2013 Location: Rozenburg , Zuid-Holland Photos: Gallery Posts: 3,681	I can confirm AF.C only works with the HD Pentax-DA 55-300mm F4.5-6.3 ED PLM WR RE

12-11-2017, 01:53 PM	#7
halimj7 Forum Member Join Date: Oct 2017 Posts: 76 Original Poster	Originally posted by Crooski I can confirm AF.C only works with the HD Pentax-DA 55-300mm F4.5-6.3 ED PLM WR RE Bismillah Thanks. What is your experience with the lens? Is it worth buying just for video?

12-11-2017, 03:17 PM	#8
SSGGeezer Veteran Member Join Date: Jun 2017 Location: Indiana, U.S. Photos: Gallery \| Albums Posts: 4,845	Originally posted by halimj7 Bismillah Thanks. What is your experience with the lens? Is it worth buying just for video? I don't know about video, but the lens is a wonderful all around lens that focuses like lightning and silently. It is not very fast though so your mileage may vary.

12-12-2017, 01:30 AM	#9
Dericali Senior Member Join Date: Jul 2016 Location: Berlin Posts: 298	Originally posted by halimj7 Bismillah Thanks. What is your experience with the lens? Is it worth buying just for video? I would recommend going into a camera store that stocks Pentax and trying out some of the lenses they have, I'm sure most of the newer lenses support it. The DFA 28-105 could be a good lens for this. However, given that the review I posted earlier makes it seem like the continuous autofocus doesn't work very well, I'd recommend testing this feature before buying a specific lens to use for it.

12-12-2017, 07:09 AM	#11
halimj7 Forum Member Join Date: Oct 2017 Posts: 76 Original Poster	Originally posted by Crooski Focus is not super fast. but it works continuously in Video Bismillah That is what I have seen from other non pro video Cameras, even Sony's and Panasonics. The only cameras I have seen do exceptionally in this regard is Canon with their dual pixel AF, but most of their cameras don't have 4K. It seems to me Pentax is not that far off in video. Im hoping they can expand their lens support for C AF and 4K support by the time the successor of the K3II comes out.

07-17-2020, 10:12 AM - 2 Likes	#13
Belcik Veteran Member Join Date: Feb 2009 Location: Russia,Moscow Photos: Gallery \| Albums Posts: 377	I have received official response. Issued several queries on all languages I know for different Ricohs Russians responded first. As of 2020.07.17, only KAF4 support video continuous focus: HD PENTAX-D FA★50mmF1.4 SDM AW HD PENTAX-DA 55-300mmF4.5-6.3ED PLM WR RE HD PENTAX-D FA 70-210mmF4ED SDM WR HD PENTAX-D FA★85mmF1.4ED SDM AW

07-17-2020, 03:55 PM	#14
Kobie Site Supporter Join Date: Oct 2014 Location: Bowmanville Photos: Albums Posts: 1,211	Originally posted by Belcik I have received official response. Issued several queries on all languages I know for different Ricohs Russians responded first. As of 2020.07.17, only KAF4 support video continuous focus: HD PENTAX-D FA★50mmF1.4 SDM AW HD PENTAX-DA 55-300mmF4.5-6.3ED PLM WR RE HD PENTAX-D FA 70-210mmF4ED SDM WR HD PENTAX-D FA★85mmF1.4ED SDM AW Interesting. According to page 5 of the KP product page on Ricohs website, it only works with the HD DA 55-300 PLM. Scroll down to Movie Recording

07-17-2020, 03:59 PM	#15
bobmaxja Veteran Member Join Date: Mar 2010 Location: Laval, Quebec Canada Posts: 2,171	The 50, 70-210 and 85 were introduce after the KP start to sell, normal!,