is 25 shutter ok? at DVinfo.net

Go Back   DV Info Net > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony HDV and DV Camera Systems > Sony HVR-Z5 / HDR-FX1000

Sony HVR-Z5 / HDR-FX1000
Pro and consumer versions of this Sony 3-CMOS HDV camcorder.


Reply
 
Thread Tools Search this Thread
Old April 16th, 2012, 08:27 PM   #1
Trustee
 
Join Date: Oct 2009
Location: Central Coast Australia
Posts: 1,008
is 25 shutter ok?

To elaborate,
As a general rule I've heard people say that you will produce low quality video if your shutter speed is lower/slower than your framerate, yeah?
So how does this come in to play with the Z5 when in Progressive Mode, being that its 25p but its actually 50i with both fields the same. Like the GH2 and GH1 and most other Canon camcorders I have.
Should I not use 25 shutter at all, and stick with 50 shutter, ( low light stuff makes it tough though)?
Is additional motion blur with 25 shutter the only casualty in quality?
The cam uses 25 shutter in full auto a lot, would I be right in presuming it wouldn't do this if it makes low quality video? ( I know full auto is the devil, it is good for a reference though :)
Any thoughts most appreciated.

Of course I'm in Pal land, same question applies for NTSC people, just substitute 30 shutter and 60i :)
__________________
http://vimeo.com/livewebvideo

Last edited by Gerald Webb; April 16th, 2012 at 08:28 PM. Reason: NTSC
Gerald Webb is offline   Reply With Quote
Old April 17th, 2012, 08:12 AM   #2
Inner Circle
 
Join Date: Mar 2003
Location: Billericay, England UK
Posts: 4,711
Re: is 25 shutter ok?

In DV days (720x576i50) dropping to 1/25th sec from the default 1/50th did indeed lose you picture quality, and owners of cameras like the PD170 & GH2 avoided it. But I'm pretty sure that the 1440x180i50 of your Z5 isn't so afflicted, though I'd like to see your experimental results.

Easy to do - simply connect your Z5 to a big TV, point it at a newspaper and A/B the shutter speed between 1/50th and 1/25th. The might be a tiny difference that may well be deemed acceptable for the stop you gain, but in my latest wedding film I preferred the +6dB grain/gain setting to the motion blur of the slower shutter (NX5)

tom.
Tom Hardwick is offline   Reply With Quote
Old April 17th, 2012, 12:11 PM   #3
Inner Circle
 
Join Date: Jan 2007
Location: Woodinville, WA USA
Posts: 3,464
Re: is 25 shutter ok?

Quote:
Originally Posted by Gerald Webb View Post
being that its 25p but its actually 50i with both fields the same.
Only if you tell it to be. The Z5 does both true progressive and 25 (24, 30) p over 50 (60) i. Pages 83-84.
__________________
"It can only be attributable to human error... This sort of thing has cropped up before, and it has always been due to human error."
Adam Gold is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony HDV and DV Camera Systems > Sony HVR-Z5 / HDR-FX1000

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 10:43 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network