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RonHendriks1966 · 04-14-2014, 12:02 PM

Originally posted by philbaum

So how do normal video cams take their movies - do they use an electronic shutter or some incredibly durable mechanical one - anyone know?

They use the electronic shutter, so for video in our dslr there is only one count on the shuttercount. For timelapse in K-3/K-50/K-30/K-01 there is a different one and every image (timelapse from 1 second up to one hour (if I'm correct) counts for one on the shuttercount.

Leaving the shutter op and LiveView on for the whole timelapse to be taken with the 645Z would heat up the sensor to much.

BrianR · 04-14-2014, 12:18 PM

Originally posted by RonHendriks1966

Leaving the shutter op and LiveView on for the whole timelapse to be taken with the 645Z would heat up the sensor to much.

Is there any reason live view would need to stay on though? Most of the time lapses I've seen involved parking the camera on a tripod or something with a preprogrammed movement, once setup and running there's no need to see what it will be taking pictures of.

rawr · 04-14-2014, 01:34 PM

I guess one could use a 645 leaf shutter lens if anyone was too worried about body shuttercount. I believe there were/are a few Pentax 645 leaf shutter lenses.

philbaum · 04-14-2014, 03:01 PM

Originally posted by RonHendriks1966

They use the electronic shutter, so for video in our dslr there is only one count on the shuttercount. For timelapse in K-3/K-50/K-30/K-01 there is a different one and every image (timelapse from 1 second up to one hour (if I'm correct) counts for one on the shuttercount.

Leaving the shutter op and LiveView on for the whole timelapse to be taken with the 645Z would heat up the sensor to much.

Thanks Ron for the info! On my Nex 6, they can be left in video for 60 minutes without overheating. But thats aps sensor not a MF sensor. And heat generally doesn't do good things for noise so there's that. All depends on how its designed I suppose. For a $9000 MF, i would hope they would consult the experts on what they want.

Adam · 04-14-2014, 05:12 PM

Originally posted by rawr

I guess one could use a 645 leaf shutter lens if anyone was too worried about body shuttercount. I believe there were/are a few Pentax 645 leaf shutter lenses.

Two to be exact, but they aren't available new AFAIK:

645 LS Lenses - Pentax Lens Reviews & Lens Database

thibs · 04-15-2014, 01:23 AM

Originally posted by Adam

Two to be exact, but they aren't available new AFAIK:

645 LS Lenses - Pentax Lens Reviews & Lens Database

New ones being able to communicate with the body so the body is aware of special LS nature of the lens.
That would essentially work like Mamiya/Hasselblad for those for who this is important.

04-14-2014, 05:12 PM	#80
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,608	Originally posted by rawr I guess one could use a 645 leaf shutter lens if anyone was too worried about body shuttercount. I believe there were/are a few Pentax 645 leaf shutter lenses. Two to be exact, but they aren't available new AFAIK: 645 LS Lenses - Pentax Lens Reviews & Lens Database 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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04-14-2014, 12:02 PM	#76
RonHendriks1966 Banned Join Date: Jan 2009 Photos: Gallery Posts: 9,675	Originally posted by philbaum So how do normal video cams take their movies - do they use an electronic shutter or some incredibly durable mechanical one - anyone know? They use the electronic shutter, so for video in our dslr there is only one count on the shuttercount. For timelapse in K-3/K-50/K-30/K-01 there is a different one and every image (timelapse from 1 second up to one hour (if I'm correct) counts for one on the shuttercount. Leaving the shutter op and LiveView on for the whole timelapse to be taken with the 645Z would heat up the sensor to much.

04-14-2014, 12:18 PM	#77
BrianR Veteran Member Join Date: Dec 2010 Location: Ontario Photos: Gallery Posts: 3,332	Originally posted by RonHendriks1966 Leaving the shutter op and LiveView on for the whole timelapse to be taken with the 645Z would heat up the sensor to much. Is there any reason live view would need to stay on though? Most of the time lapses I've seen involved parking the camera on a tripod or something with a preprogrammed movement, once setup and running there's no need to see what it will be taking pictures of.

04-14-2014, 01:34 PM	#78
rawr Veteran Member Join Date: Jun 2009 Posts: 11,913	I guess one could use a 645 leaf shutter lens if anyone was too worried about body shuttercount. I believe there were/are a few Pentax 645 leaf shutter lenses.

04-14-2014, 03:01 PM	#79
philbaum Veteran Member Join Date: Oct 2007 Location: Port Townsend, Washington State, USA Posts: 3,659	Originally posted by RonHendriks1966 They use the electronic shutter, so for video in our dslr there is only one count on the shuttercount. For timelapse in K-3/K-50/K-30/K-01 there is a different one and every image (timelapse from 1 second up to one hour (if I'm correct) counts for one on the shuttercount. Leaving the shutter op and LiveView on for the whole timelapse to be taken with the 645Z would heat up the sensor to much. Thanks Ron for the info! On my Nex 6, they can be left in video for 60 minutes without overheating. But thats aps sensor not a MF sensor. And heat generally doesn't do good things for noise so there's that. All depends on how its designed I suppose. For a $9000 MF, i would hope they would consult the experts on what they want.

04-15-2014, 01:23 AM	#81
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 7,001	Originally posted by Adam Two to be exact, but they aren't available new AFAIK: 645 LS Lenses - Pentax Lens Reviews & Lens Database New ones being able to communicate with the body so the body is aware of special LS nature of the lens. That would essentially work like Mamiya/Hasselblad for those for who this is important.

645Z specs leaked on Ricoh Germany website: 51,4Mp, Full HD, ISO 204.800

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