Pentax k-70 continuous focusing with Sigma lenses ?

Pentigor · 03-08-2017, 11:54 AM

Hi guys and girls,

I was asking myself two questions concerning the K-70 ;

1) Can it do continuous focusing in video with sigma lenses that have a motor ? (HSM it is called I think)

2) Can you connect the K-70 directly to the charger (mains) and let it make interval shots all day ? So as to avoid the battery going empty when you are not present.

If anyone tried this out thank you for sharing your knowledge,

see you,

Igor

Adam · 03-10-2017, 07:27 PM

Continuous video AF requires a Pentax DC or PLM lens. (i.e. not Sigma HSM or Pentax SDM)

I don't believe the K-70 has a DC power input, but I think there may be some third party adapters that use the battery port for that purpose.

Pentigor · 03-11-2017, 12:10 AM

Originally posted by Adam

Continuous video AF requires a Pentax DC or PLM lens. (i.e. not Sigma HSM or Pentax SDM)

>>>Thank you for your input Adam.

Originally posted by Adam

I don't believe the K-70 has a DC power input, but I think there may be some third party adapters that use the battery port for that purpose.

>>>I have found a adapter 'AC Adapter Kit K-AC168 NEW' on the pentax web-site but I can not find it for sale yet, I guess that will happen soon.

thank you for your time,

happy shooting !

03-08-2017, 11:54 AM	#1
Pentigor Senior Member Join Date: Feb 2013 Photos: Gallery \| Albums Posts: 305	Pentax k-70 continuous focusing with Sigma lenses ? Hi guys and girls, I was asking myself two questions concerning the K-70 ; 1) Can it do continuous focusing in video with sigma lenses that have a motor ? (HSM it is called I think) 2) Can you connect the K-70 directly to the charger (mains) and let it make interval shots all day ? So as to avoid the battery going empty when you are not present. If anyone tried this out thank you for sharing your knowledge, see you, Igor

03-10-2017, 07:27 PM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,597	Continuous video AF requires a Pentax DC or PLM lens. (i.e. not Sigma HSM or Pentax SDM) I don't believe the K-70 has a DC power input, but I think there may be some third party adapters that use the battery port for that purpose. 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:

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03-11-2017, 12:10 AM	#3
Pentigor Senior Member Join Date: Feb 2013 Photos: Gallery \| Albums Posts: 305 Original Poster	Originally posted by Adam Continuous video AF requires a Pentax DC or PLM lens. (i.e. not Sigma HSM or Pentax SDM) >>>Thank you for your input Adam. Originally posted by Adam I don't believe the K-70 has a DC power input, but I think there may be some third party adapters that use the battery port for that purpose. >>>I have found a adapter 'AC Adapter Kit K-AC168 NEW' on the pentax web-site but I can not find it for sale yet, I guess that will happen soon. thank you for your time, happy shooting !