Problem with shutter speed at DVinfo.net

Peter Berger · April 4th, 2011, 01:18 PM

I just bought Canon 5D and I have this weird problem. Please help me, I need to shoot some interview tomorrow :)
I'm from Europe, so I want to have a shutter speed at 1/25. I'm in manual mode, I set shutter speed 1/25, but when I press live view, the shutter speed changes to 1/30 and I cant choose shutter slower than 1/30, so I cant go to 1/25! Why?

Luc De Wandel · April 4th, 2011, 03:10 PM

Why would you absolutely want a shutter speed of 1/25? As long as you don't use a shutter speed that is too short (shorter than 1/100th), you'll get perfect results. Below 1/100th fast movements may show some stuttering, but there are hardly any fast movements in an interview, are there? I often use 1/50 and that works perfectly. Unless of course there another reason for wanting 1/25th, that I don't know of.

Danny Winn · April 5th, 2011, 06:37 PM

I can't imagine a time ever that I would want a shutter at 1/25 during an interview, I think your gonna get a lot of blurring at that setting if theres any motion at all.

Why do you want that speed?

Ramji Meena · April 6th, 2011, 12:35 AM

Hi peter , Unfortunately shutter spped below 1/30 in video mode is just not possible in MKii.

Jeff Troiano · April 6th, 2011, 07:27 AM

I'm curious if his thinking is with regard to frame rates, like 24p, 25p, 30p? I've read that for video, the shutter speed should be double the frame rate. So for 25p, you would use 1/50th, and 30p 1/60th. Since there isn't a 1/48th, you would use 1/50th also for 24p.

I'm thinking he has his information mixed up and he's thinking he needs to use a shutter speed equal to his frame rate for video. If that isn't the case, I'm sorry if I am miss reading into the original question.

jeff

April 4th, 2011, 01:18 PM	#1
Peter Berger Regular Crew Join Date: Apr 2009 Location: Czech Republic Posts: 136	Problem with shutter speed I just bought Canon 5D and I have this weird problem. Please help me, I need to shoot some interview tomorrow :) I'm from Europe, so I want to have a shutter speed at 1/25. I'm in manual mode, I set shutter speed 1/25, but when I press live view, the shutter speed changes to 1/30 and I cant choose shutter slower than 1/30, so I cant go to 1/25! Why?

April 4th, 2011, 03:10 PM	#2
Luc De Wandel Major Player Join Date: May 2008 Location: Knokke-Heist, Belgium Posts: 963	Re: Problem with shutter speed Why would you absolutely want a shutter speed of 1/25? As long as you don't use a shutter speed that is too short (shorter than 1/100th), you'll get perfect results. Below 1/100th fast movements may show some stuttering, but there are hardly any fast movements in an interview, are there? I often use 1/50 and that works perfectly. Unless of course there another reason for wanting 1/25th, that I don't know of.

April 5th, 2011, 06:37 PM	#3
Danny Winn Major Player Join Date: Jan 2009 Location: Albuquerque, NM Posts: 291	Re: Problem with shutter speed I can't imagine a time ever that I would want a shutter at 1/25 during an interview, I think your gonna get a lot of blurring at that setting if theres any motion at all. Why do you want that speed?

April 6th, 2011, 12:35 AM	#4
Ramji Meena Regular Crew Join Date: Feb 2009 Location: MUMBAI INDIA Posts: 109	Re: Problem with shutter speed Hi peter , Unfortunately shutter spped below 1/30 in video mode is just not possible in MKii.

April 6th, 2011, 07:27 AM	#5
Jeff Troiano Major Player Join Date: May 2003 Location: Nashville TN Posts: 480	Re: Problem with shutter speed I'm curious if his thinking is with regard to frame rates, like 24p, 25p, 30p? I've read that for video, the shutter speed should be double the frame rate. So for 25p, you would use 1/50th, and 30p 1/60th. Since there isn't a 1/48th, you would use 1/50th also for 24p. I'm thinking he has his information mixed up and he's thinking he needs to use a shutter speed equal to his frame rate for video. If that isn't the case, I'm sorry if I am miss reading into the original question. jeff