Why shoot 24p at 1/48sec shutter?? at DVinfo.net

Tony Parenti · April 14th, 2007, 05:44 PM

What is the advantage/disadvantage to shooting 24p at 1/48sec shutter instead of 1/24?? What will the HV20 let you set for shutter speeds when in 24p mode?

Thanks!!

Bruce Findleton · April 14th, 2007, 06:41 PM

I've been told that it's to emulate a film camera's 180 degree shutter angle.

David Tamés · April 14th, 2007, 06:51 PM

While 1/24 gives you more exposure and motion blur (which is nice in many cases) 1/48 will look sharper and crisper and more like a "normal" film image. But I've often used 1/24 when I want a little but more motion blur or need the extra exposure.

Fergus Anderson · April 15th, 2007, 02:46 AM

if you shoot at 1/24 (1/25 for me) with the HV10 it will look progressive

Povl H. Pedersen · April 15th, 2007, 07:59 AM

Shorter shutter time will have more effects.

A faster shutter will need to open the aperture a little more, causing less depth-of-field, og out-of-focus blur. With low end camcorders this does not matter much. Needs a bigger sensor / lens.

1/48s will also freeze action better, giving you sharper individual frames.

Wes Vasher · April 15th, 2007, 08:57 AM

If you are shooting sports at 24p you probably want less motion blur I would think so you'd want 1/48 or higher, that's one reason.

Peter J Alessandria · April 15th, 2007, 09:06 AM

Keep in mind you can shoot at any of the available shutter speeds (check the manual) in 24p - not just 1/48. Which SS depends on the kind of look you want/specific application. For instance, 1/24 on a static subject will look normal but allow you to shoot in lower light. On a moving subject 1/24 might look soft (and 1/6 or 1/12 blurry). At the fast end, 1/250-1/1000 will create that jittery "Savings Private Ryan" look. Again artistically that may be the choice. But 1/1000 - 1/2000 will definitely cut the amount of light you have hitting the sensor so you'll probably be limited to shooting outside midday.

Wes Vasher · April 15th, 2007, 09:32 AM

Good point Peter. I shot 24p 1/100 light saber footage this weekend because for one you can clearly see where the blade is as opposed to a nebulous blur, but also it gives you that life action Private Ryan studdery effect.

April 14th, 2007, 05:44 PM	#1
Tony Parenti Regular Crew Join Date: Apr 2007 Location: Bristol, CT. USA Posts: 54	Why shoot 24p at 1/48sec shutter?? What is the advantage/disadvantage to shooting 24p at 1/48sec shutter instead of 1/24?? What will the HV20 let you set for shutter speeds when in 24p mode? Thanks!!

April 14th, 2007, 06:41 PM	#2
Bruce Findleton Regular Crew Join Date: Feb 2002 Location: Lafayette, CA Posts: 42	I've been told that it's to emulate a film camera's 180 degree shutter angle. __________________ Bruce Findleton Land's End Productions Pleasanton, CA http://www.landsendproductions.com

April 14th, 2007, 06:51 PM	#3
David Tamés Kino-Eye Join Date: Jul 2005 Location: Boston, MA Posts: 457	While 1/24 gives you more exposure and motion blur (which is nice in many cases) 1/48 will look sharper and crisper and more like a "normal" film image. But I've often used 1/24 when I want a little but more motion blur or need the extra exposure. __________________ David Tames { blog: http://Kino-Eye.com twitter: @cinemakinoeye }

April 15th, 2007, 08:57 AM	#6
Wes Vasher Major Player Join Date: Jan 2006 Posts: 440	If you are shooting sports at 24p you probably want less motion blur I would think so you'd want 1/48 or higher, that's one reason. __________________ Clips \| Stills

April 15th, 2007, 09:32 AM	#8
Wes Vasher Major Player Join Date: Jan 2006 Posts: 440	Good point Peter. I shot 24p 1/100 light saber footage this weekend because for one you can clearly see where the blade is as opposed to a nebulous blur, but also it gives you that life action Private Ryan studdery effect. __________________ Clips \| Stills

April 15th, 2007, 02:46 AM	#4
Fergus Anderson Major Player Join Date: Nov 2006 Location: London, UK Posts: 321	if you shoot at 1/24 (1/25 for me) with the HV10 it will look progressive

April 15th, 2007, 07:59 AM	#5
Povl H. Pedersen Regular Crew Join Date: Mar 2007 Location: Aarhus, Denmark Posts: 28	Shorter shutter time will have more effects. A faster shutter will need to open the aperture a little more, causing less depth-of-field, og out-of-focus blur. With low end camcorders this does not matter much. Needs a bigger sensor / lens. 1/48s will also freeze action better, giving you sharper individual frames.

April 15th, 2007, 09:06 AM	#7
Peter J Alessandria Major Player Join Date: Oct 2003 Location: Los Angeles, CA Posts: 293	Keep in mind you can shoot at any of the available shutter speeds (check the manual) in 24p - not just 1/48. Which SS depends on the kind of look you want/specific application. For instance, 1/24 on a static subject will look normal but allow you to shoot in lower light. On a moving subject 1/24 might look soft (and 1/6 or 1/12 blurry). At the fast end, 1/250-1/1000 will create that jittery "Savings Private Ryan" look. Again artistically that may be the choice. But 1/1000 - 1/2000 will definitely cut the amount of light you have hitting the sensor so you'll probably be limited to shooting outside midday.