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Old December 11th, 2008, 03:10 AM   #1
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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
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Old December 11th, 2008, 03:24 AM   #2
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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).
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Old December 11th, 2008, 04:47 AM   #3
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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
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Old December 11th, 2008, 11:21 AM   #4
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Originally Posted by Dominik Seibold View Post
shutter-off = 360°-shutter = shutter-speed of 1/framerate


.
Can you clarify? 1 divided by frame rate?
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Old December 11th, 2008, 11:45 AM   #5
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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.
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Old December 11th, 2008, 01:21 PM   #6
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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.
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Old December 11th, 2008, 01:32 PM   #7
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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?
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Old December 11th, 2008, 02:00 PM   #8
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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.
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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.
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Old December 11th, 2008, 06:25 PM   #9
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>>>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.
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Old December 12th, 2008, 12:05 AM   #10
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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)
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Old December 12th, 2008, 12:24 AM   #11
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you double the frame
What's that?
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Old December 12th, 2008, 12:29 AM   #12
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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...
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Old December 12th, 2008, 12:33 AM   #13
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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°.
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Old December 12th, 2008, 01:23 AM   #14
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Interesting. I need to watch the section of the video again....then do some testing.
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Old December 12th, 2008, 01:40 AM   #15
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Interesting. I need to watch the section of the video again....then do some testing.
A lot of conflicting information in this thread.
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