why progressive mode on 170 looks ...

Steve McDonald · August 26th, 2004, 08:18 PM

Regarding shallow focus, I'd usually like as much depth of focus as possible. I mainly do sports events and wildlife video. Not only do I want to sharply show all parts of the scene, but when key subjects rapidly change their distances from me, good depth of focus is essential for following them. There's a lot more uses for video than the artistic moviemaking that seems to be the main area of interest on these forums.

Steve McDonald

Mike Rehmus · August 26th, 2004, 09:24 PM

Use a relatively long lens setting with a ND filter if you need to open the lens. You can get a very shallow depth of field.

Lasse Bodoni · August 27th, 2004, 03:30 AM

What can I use on a PD150 to get a god shallow focus?

Mike Rehmus · August 27th, 2004, 10:36 AM

Exctly what I said. Try it and you will see that at longer focal lengths and an open aperature, the DOF is fairly small. Certainly enough to do some rack focusing although that is a bit tough with the 150.

For example, I just switched on in auto, ND2 in place and manual focus. I was able to focus on the top near corner of a kitchen chair and then shift the focus to the top far corner. This was apparent even in the viewfinder. On a monitor, it would be more apparent.

Understand we aren't talking about a massive amount of focus change but enough for the audience to understand the shift in attention such a change makes.

Add more ND filtering to taste.

Lasse Bodoni · August 27th, 2004, 12:44 PM

Ok, Mike

I'm using the ND2 and a Scneider ND.9 in the mattebox and I can't get any god shollow dof. It's more than nothing but not what I want.

Watch the end of this movie :
http://www.arri.com/infodown/other/movies/What_is_ARRICAM.mov

They are using a shuttersped/iris combination to make the effect. I know the media is something else but it's not just the objectiv and ND.

Ryan Mattos · August 28th, 2004, 10:45 AM

back up and zoom in on your subject, that should help you get more shallow focus as well

August 26th, 2004, 09:24 PM	#17
Mike Rehmus Wrangler Join Date: May 2002 Location: Vallejo, California Posts: 4,049	Use a relatively long lens setting with a ND filter if you need to open the lens. You can get a very shallow depth of field. __________________ Mike Rehmus Hey, I can see the carrot at the end of the tunnel!

August 27th, 2004, 10:36 AM	#19
Mike Rehmus Wrangler Join Date: May 2002 Location: Vallejo, California Posts: 4,049	Exctly what I said. Try it and you will see that at longer focal lengths and an open aperature, the DOF is fairly small. Certainly enough to do some rack focusing although that is a bit tough with the 150. For example, I just switched on in auto, ND2 in place and manual focus. I was able to focus on the top near corner of a kitchen chair and then shift the focus to the top far corner. This was apparent even in the viewfinder. On a monitor, it would be more apparent. Understand we aren't talking about a massive amount of focus change but enough for the audience to understand the shift in attention such a change makes. Add more ND filtering to taste. __________________ Mike Rehmus Hey, I can see the carrot at the end of the tunnel!

August 26th, 2004, 08:18 PM	#16
Steve McDonald Major Player Join Date: Aug 2002 Location: Eugene, Oregon Posts: 366	Regarding shallow focus, I'd usually like as much depth of focus as possible. I mainly do sports events and wildlife video. Not only do I want to sharply show all parts of the scene, but when key subjects rapidly change their distances from me, good depth of focus is essential for following them. There's a lot more uses for video than the artistic moviemaking that seems to be the main area of interest on these forums. Steve McDonald

August 27th, 2004, 03:30 AM	#18
Lasse Bodoni Regular Crew Join Date: Aug 2004 Posts: 39	What can I use on a PD150 to get a god shallow focus?

August 27th, 2004, 12:44 PM	#20
Lasse Bodoni Regular Crew Join Date: Aug 2004 Posts: 39	Ok, Mike I'm using the ND2 and a Scneider ND.9 in the mattebox and I can't get any god shollow dof. It's more than nothing but not what I want. Watch the end of this movie : http://www.arri.com/infodown/other/movies/What_is_ARRICAM.mov They are using a shuttersped/iris combination to make the effect. I know the media is something else but it's not just the objectiv and ND.

August 28th, 2004, 10:45 AM	#21
Ryan Mattos Regular Crew Join Date: Jul 2004 Posts: 38	back up and zoom in on your subject, that should help you get more shallow focus as well