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mikeSF · 12-14-2015, 10:09 PM

As I am learning my 645Z, a few basic questions have come up that I cannot resolve with the manual.

Live View shuts off after 60 seconds; is there any way to get more time or is this automatic to control sensor heat?
thanks in advance.

Adam · 12-14-2015, 10:22 PM - **1 Like**

First of all, I think it'll stay on if you press any button.

Also, check your auto-off time. I'm not sure if it also affects live view, but it's worth trying.

Kolor-Pikker · 12-15-2015, 02:25 AM

Originally posted by mikeSF

As I am learning my 645Z, a few basic questions have come up that I cannot resolve with the manual.

Live View shuts off after 60 seconds; is there any way to get more time or is this automatic to control sensor heat?
thanks in advance.

I have auto-off set to 3min but it seems to turn off live-view quicker than that. I'm guessing it is automatic, besides sensor heat, LV also eats through the battery in a jiffy.

mikeSF · 12-15-2015, 08:34 AM

yeah, i was afraid that might be the case. When i am setting up a studio shot, i find i have to keep waking up LV, when a little more time would have been useful to me. no worries.

**Digitalis** · 12-15-2015, 08:40 AM

Heat is one of the biggest issues with the LV capability of the 645Z, and a drawback of the intensive weather sealing of the camera. If it is any consolation the Leica S2 Typ 007(which I have been reviewing) has similar limitations. Phase one and Leaf backs with live view capability are fan cooled for a reason*.

*they are also fan cooled for long exposures, the phase and leaf backs can do hour long exposures without sensor amp glow showing up.

mikeSF · 12-15-2015, 10:18 AM

Originally posted by Digitalis

Heat is one of the biggest issues with the LV capability of the 645Z, and a drawback of the intensive weather sealing of the camera. If it is any consolation the Leica S2 Typ 007(which I have been reviewing) has similar limitations. Phase one and Leaf backs with live view capability are fan cooled for a reason*.

*they are also fan cooled for long exposures, the phase and leaf backs can do hour long exposures without sensor amp glow showing up.

thanks for that info. interesting

**jbinpg** · 12-15-2015, 11:34 AM

Just assuming that Pentax would have an AC adapter for studio use with the Z? Seems a way to avoid eating batteries.

**Digitalis** · 12-15-2015, 07:29 PM

Originally posted by jbinpg

Pentax would have an AC adapter for studio use with the Z? Seems a way to avoid eating batteries.

For studio use an AC adapter would be useful, but if you shoot handheld in the studio it would be bothersome.

kain · 12-16-2015, 03:48 PM

power system on the Z is the same as the 645D and the K7/5/3, with the little square 8.3vDC plug. The pentax part # is K-AC132.

12-14-2015, 10:09 PM	#1
mikeSF Pentaxian Join Date: Jan 2009 Location: East Bay Area, CA Photos: Gallery Posts: 6,622	645Z any way to keep LV on >60sec? As I am learning my 645Z, a few basic questions have come up that I cannot resolve with the manual. Live View shuts off after 60 seconds; is there any way to get more time or is this automatic to control sensor heat? thanks in advance.

12-14-2015, 10:22 PM - 1 Like	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,608	First of all, I think it'll stay on if you press any button. Also, check your auto-off time. I'm not sure if it also affects live view, but it's worth trying. 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:

12-15-2015, 07:29 PM	#8
Digitalis Site Supporter Join Date: Mar 2009 Location: Melbourne, Victoria Photos: Gallery Posts: 11,694	Originally posted by jbinpg Pentax would have an AC adapter for studio use with the Z? Seems a way to avoid eating batteries. For studio use an AC adapter would be useful, but if you shoot handheld in the studio it would be bothersome. Last edited by Digitalis; 12-15-2015 at 07:41 PM.

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12-15-2015, 02:25 AM	#3
Kolor-Pikker Veteran Member Join Date: Dec 2014 Posts: 345	Originally posted by mikeSF As I am learning my 645Z, a few basic questions have come up that I cannot resolve with the manual. Live View shuts off after 60 seconds; is there any way to get more time or is this automatic to control sensor heat? thanks in advance. I have auto-off set to 3min but it seems to turn off live-view quicker than that. I'm guessing it is automatic, besides sensor heat, LV also eats through the battery in a jiffy.

12-15-2015, 08:34 AM	#4
mikeSF Pentaxian Join Date: Jan 2009 Location: East Bay Area, CA Photos: Gallery Posts: 6,622 Original Poster	yeah, i was afraid that might be the case. When i am setting up a studio shot, i find i have to keep waking up LV, when a little more time would have been useful to me. no worries.

12-15-2015, 08:40 AM	#5
Digitalis Site Supporter Join Date: Mar 2009 Location: Melbourne, Victoria Photos: Gallery Posts: 11,694	Heat is one of the biggest issues with the LV capability of the 645Z, and a drawback of the intensive weather sealing of the camera. If it is any consolation the Leica S2 Typ 007(which I have been reviewing) has similar limitations. Phase one and Leaf backs with live view capability are fan cooled for a reason. they are also fan cooled for long exposures, the phase and leaf backs can do hour long exposures without sensor amp glow showing up.

12-15-2015, 10:18 AM	#6
mikeSF Pentaxian Join Date: Jan 2009 Location: East Bay Area, CA Photos: Gallery Posts: 6,622 Original Poster	Originally posted by Digitalis Heat is one of the biggest issues with the LV capability of the 645Z, and a drawback of the intensive weather sealing of the camera. If it is any consolation the Leica S2 Typ 007(which I have been reviewing) has similar limitations. Phase one and Leaf backs with live view capability are fan cooled for a reason. they are also fan cooled for long exposures, the phase and leaf backs can do hour long exposures without sensor amp glow showing up. thanks for that info. interesting

12-15-2015, 11:34 AM	#7
jbinpg Site Supporter Join Date: Mar 2008 Location: Prince George, BC Photos: Gallery \| Albums Posts: 3,546	Just assuming that Pentax would have an AC adapter for studio use with the Z? Seems a way to avoid eating batteries.

12-16-2015, 03:48 PM	#9
kain Senior Member Join Date: Dec 2012 Photos: Gallery Posts: 162	power system on the Z is the same as the 645D and the K7/5/3, with the little square 8.3vDC plug. The pentax part # is K-AC132.

645Z any way to keep LV on >60sec?

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