Enlighten me on the shutter for the EX1 at DVinfo.net

Simon Denny · December 11th, 2008, 03:10 AM

Can some one enlighten me on the shutter for the EX1.
I have just come from the Z1 and I always used this in manual everything.
I shoot in Pal so my settings for the shutter would be 1/50 is this correct? And I assume that if the shutter is switched off the shutter is in automatic mode and changing exposure on me just like the Z1. But then I don’t see the shutter changing exposure on me, I need some more info an this if anyone has some.

Simon

Dominik Seibold · December 11th, 2008, 03:24 AM

shutter-off = 360°-shutter = shutter-speed of 1/framerate
shutter-on = manually set shutter

Automatic shutter is used, if "full auto" is turned on (regardless of the shutter-on/off-switch).

Simon Denny · December 11th, 2008, 04:47 AM

Ok have read heaps but I'm still none the wiser but this is what I think people are saying.
If I shoot in 25p shutter should be on and set to 1/50. If shutter is off I will get a I will get a lot of motion blur.
25p = 1/50
50p = 1/100 etc...
If shutter is on and I set it to 1/50 I loose one stop of light which I can see.

My next question is 50i what happens here? I cant find any info on this yet.

Regards
Simon

Brian Luce · December 11th, 2008, 11:21 AM

Quote:

Originally Posted by Dominik Seibold

shutter-off = 360°-shutter = shutter-speed of 1/framerate

.

Can you clarify? 1 divided by frame rate?

Andy Nickless · December 11th, 2008, 11:45 AM

Shutter off = 360 degree shutter - in other words, the shutter is the same duration as the frame rate.

You need to do some tests.
I rarely shoot at 1/50 because most of my subjects are moving and I hate blurred subjects (unless it's for effect).

Grab your camera and shoot some test footage - see what suits you best.
Forget the "rules" and be creative.

Dominik Seibold · December 11th, 2008, 01:21 PM

Quote:

Originally Posted by Brian Luce

1 divided by frame rate?

Exactly! For example: 25 frames per second would result in 1/25 seconds per frame.
Of course, if you shoot interlaced, you have to calculate with fields per second.

Tuomas Sebastien · December 11th, 2008, 01:32 PM

I have question about shutter too. On PAL mode when I select 1080/50i mode I can't select 1/50 shutter speed. Only 1/60 and next step is 1/100. The firmware is the newest.

So why on earth would I want to shoot 1/60 on PAL area since all the lights flicker according to 50Hz?

Dominik Seibold · December 11th, 2008, 02:00 PM

Quote:

Originally Posted by Tuomas Sebastien

I have question about shutter too. On PAL mode when I select 1080/50i mode I can't select 1/50 shutter speed. Only 1/60 and next step is 1/100. The firmware is the newest.

So you have to use shutter-off to get 1/50.

Quote:

Originally Posted by Tuomas Sebastien

So why on earth would I want to shoot 1/60 on PAL area since all the lights flicker according to 50Hz?

Because the sun and a lot of other light-sources don't flicker.

Serena Steuart · December 11th, 2008, 06:25 PM

>>>So why on earth would I want to shoot 1/60 on PAL area since all the lights flicker according to 50Hz<<<<

That is a reasonable question and maybe the answer is that Sony didn't expect people to use a progressive camera in interlaced mode. Nevertheless, shutter 'off' does fix that problem. In terms of blurring at slow shutter speeds, Adam Wilt has mentioned that he prefers 'shutter off' at 24 fps because blurring gives the appearance of smoother motion. Stringing together frames without any motion blurring makes for jerky film, so test before making a choice.

Mitchell Lewis · December 12th, 2008, 12:05 AM

I just watched the Vortex Media training DVD and he says that you only use "Shutter Off" when shooting interlaced. For progressive shooting you double the frame rate to get your shutter speed. Makes sense when you think about it.

Obviously you can up the shutter speed to reduce motion blur in fast moving objects (you probably already knew that)

Dominik Seibold · December 12th, 2008, 12:24 AM

Quote:

Originally Posted by Mitchell Lewis

you double the frame

What's that?

Mitchell Lewis · December 12th, 2008, 12:29 AM

Sorry.....

If you're shooting 30p, set the shutter to 1/60 (double of 30)
If you're shooting 24p, set the shutter to 1/48 (double of 24)

etc...

Dominik Seibold · December 12th, 2008, 12:33 AM

Quote:

Originally Posted by Mitchell Lewis

If you're shooting 30p, set the shutter to 1/60 (double of 30)
If you're shooting 24p, set the shutter to 1/48 (double of 24)

etc...

Or just set shutter to 180°.

Mitchell Lewis · December 12th, 2008, 01:23 AM

Interesting. I need to watch the section of the video again....then do some testing.

Brian Luce · December 12th, 2008, 01:40 AM

Quote:

Originally Posted by Mitchell Lewis

Interesting. I need to watch the section of the video again....then do some testing.

A lot of conflicting information in this thread.

December 11th, 2008, 03:10 AM	#1
Simon Denny Trustee Join Date: Jul 2007 Location: Australia Posts: 1,409	Enlighten me on the shutter for the EX1 Can some one enlighten me on the shutter for the EX1. I have just come from the Z1 and I always used this in manual everything. I shoot in Pal so my settings for the shutter would be 1/50 is this correct? And I assume that if the shutter is switched off the shutter is in automatic mode and changing exposure on me just like the Z1. But then I don’t see the shutter changing exposure on me, I need some more info an this if anyone has some. Simon

December 11th, 2008, 11:45 AM	#5
Andy Nickless Regular Crew Join Date: Nov 2006 Location: Worcester. United Kingdom Posts: 197	Shutter off = 360 degree shutter - in other words, the shutter is the same duration as the frame rate. You need to do some tests. I rarely shoot at 1/50 because most of my subjects are moving and I hate blurred subjects (unless it's for effect). Grab your camera and shoot some test footage - see what suits you best. Forget the "rules" and be creative. __________________ I taught you all I know and still you know nothing.

December 12th, 2008, 12:05 AM	#10
Mitchell Lewis Trustee Join Date: Dec 2008 Location: Kennewick, WA Posts: 1,124	I just watched the Vortex Media training DVD and he says that you only use "Shutter Off" when shooting interlaced. For progressive shooting you double the frame rate to get your shutter speed. Makes sense when you think about it. Obviously you can up the shutter speed to reduce motion blur in fast moving objects (you probably already knew that) __________________ Sony EX3, Canon 5D MkII, Chrosziel Matte Box, Sachtler tripod, Steadicam Flyer, Mac Pro, Apple/Adobe software - 20 years as a local videographer/editor

December 12th, 2008, 12:29 AM	#12
Mitchell Lewis Trustee Join Date: Dec 2008 Location: Kennewick, WA Posts: 1,124	Sorry..... If you're shooting 30p, set the shutter to 1/60 (double of 30) If you're shooting 24p, set the shutter to 1/48 (double of 24) etc... __________________ Sony EX3, Canon 5D MkII, Chrosziel Matte Box, Sachtler tripod, Steadicam Flyer, Mac Pro, Apple/Adobe software - 20 years as a local videographer/editor

December 12th, 2008, 01:23 AM	#14
Mitchell Lewis Trustee Join Date: Dec 2008 Location: Kennewick, WA Posts: 1,124	Interesting. I need to watch the section of the video again....then do some testing. __________________ Sony EX3, Canon 5D MkII, Chrosziel Matte Box, Sachtler tripod, Steadicam Flyer, Mac Pro, Apple/Adobe software - 20 years as a local videographer/editor

December 11th, 2008, 03:24 AM	#2
Dominik Seibold Major Player Join Date: May 2008 Location: Nuremberg, Germany Posts: 285	shutter-off = 360°-shutter = shutter-speed of 1/framerate shutter-on = manually set shutter Automatic shutter is used, if "full auto" is turned on (regardless of the shutter-on/off-switch).

December 11th, 2008, 04:47 AM	#3
Simon Denny Trustee Join Date: Jul 2007 Location: Australia Posts: 1,409	Ok have read heaps but I'm still none the wiser but this is what I think people are saying. If I shoot in 25p shutter should be on and set to 1/50. If shutter is off I will get a I will get a lot of motion blur. 25p = 1/50 50p = 1/100 etc... If shutter is on and I set it to 1/50 I loose one stop of light which I can see. My next question is 50i what happens here? I cant find any info on this yet. Regards Simon

December 11th, 2008, 01:32 PM	#7
Tuomas Sebastien Regular Crew Join Date: Nov 2007 Location: Finland Posts: 107	I have question about shutter too. On PAL mode when I select 1080/50i mode I can't select 1/50 shutter speed. Only 1/60 and next step is 1/100. The firmware is the newest. So why on earth would I want to shoot 1/60 on PAL area since all the lights flicker according to 50Hz?

December 11th, 2008, 06:25 PM	#9
Serena Steuart Major Player Join Date: Jun 2006 Location: Studio Alnitak, Melbourne, Victoria, Australia Posts: 640 Images: 3	>>>So why on earth would I want to shoot 1/60 on PAL area since all the lights flicker according to 50Hz<<<< That is a reasonable question and maybe the answer is that Sony didn't expect people to use a progressive camera in interlaced mode. Nevertheless, shutter 'off' does fix that problem. In terms of blurring at slow shutter speeds, Adam Wilt has mentioned that he prefers 'shutter off' at 24 fps because blurring gives the appearance of smoother motion. Stringing together frames without any motion blurring makes for jerky film, so test before making a choice.