TEST – Compare EX1 to HVR-Z7 regarding Long Gop

[Chris Babbitt]

Steve,

Can you please explain the proper use of the shutter to me, because it sure isn’t very clear in the manual. Unless I need to vary the shutter speed for a particular effect, I just leave it off, assuming that the camera will set it to the appropriate speed for the format that I am shooting in. That’s the way it’s always worked with other cameras I have owned.Isthat not correct?

[Steve Connor]

Not correct I’m afraid – the first shoot in 25p I did was on an F900 and I forgot to dial in the shutter – it looked awful. You need to set shutter manually every time.

Steve Connor
Adrenalin Television

Have you tried “Search Posts”? Enlightenment may be there.

[Chris Babbitt]

Oh terrific! So, what’s the point in having an off switch for the shutter?

[Steve Connor]

For when you shoot interlace!!!

Steve Connor
Adrenalin Television

Have you tried “Search Posts”? Enlightenment may be there.

[Chris Babbitt]

What?
Now I’m really confused.

[Eli Hollander]

Ron,

Sorry you couldn’t open it (as a matter of habit, I compress files, not so much because of size, but because the resource fork doesn’t always travel well…)

Here is a link to uncompressed motion test:

https://www.yousendit.com/transfer.php?action=download&ufid=A5B9E0CE7D6C4947

Eli

[Alister Chapman]

When you shoot interlaced the shutter is only open for 1/50th or 1/60th of a second. That is short enough in most cases to freeze the background and gives a reasonably sharp picture. When you shoot at 24P or 25P the shutter is open for twice as long at 1/25th of a second. If you are familiar with stills photography you will know that at less than 1/50th you need a tripod or you pictures will be soft due to motion causing blur.

So the answer, which is to some degree a compromise is to use the shutter set to 1/50th of a second to freeze or reduce the background blur during pans and motion. This also mimics the way most film cameras work where the film is exposed for half of the frame rate while during the other half the shutter closes and the film is moved on one frame.

This is also called a 180 degree shutter. You can use other shutter speeds depending on the amount of blur you do or do not want.

[Richard Ladkani]

Hi

I checked with the rental house. My shutter was indeed off on the switch below the lens. But my Shutter in the menu was set to whatever it sets to when it’s shooting 25p. Before use the camera was reset to factury setting and then switched to 1080/25p in HQ/35mbs

As I don’t own the camera could somebody please tell me what the standard shutter is in the menu. In interlaced mode it is 1/100 after factury reset as a standard setting which is actually quite high. What is the standard speed in 25p mode?

Maybe the shutter is the problem. But I am quite shure it was set to 1/50th

Thanx

Richard

https://www.richardladkani.com

[Richard Ladkani]

Hi Alister

Ae you 100% sure that the standard setting if you don’t touch the camera in 25p mode is 1/25th????
That would be crazy as it doesn’t mention it in the menu. Anybody would assume it is 1/50th as a standard. If that’s the case it would also explain why the EX1 is so good in low light. It adds another f-stop by opening to 1/25th vs. 1/50th

https://www.richardladkani.com

[Chris Babbitt]

OK, so let’s say I’m shooting at 1080/30p with the shutter turned off. What shutter speed is the camera shooting at?