Jump to content


Photo

filter to alter depth of field

filters depth of field focus distortion

  • Please log in to reply
2 replies to this topic

#1 Stefano Stroppa

Stefano Stroppa
  • Basic Members
  • PipPip
  • 63 posts
  • Cinematographer
  • London

Posted 16 May 2015 - 11:29 AM

Is there such a filter that allows you to focus only on small part of the frame, (not necessarily in the middle, using a very wide lens (and working with f/stop around 2.8)? 

any experience with any of these filters?

 

the scene is the following: frontal shot of the nurse holding a big siring, I want to focus on the big distorted needle in the very foreground, blurring the rest of the image, and being able to rack focus to the character. Can I do it with a filter on set and not in post?

 

thank you so much :) 


  • 0

#2 Gregory Irwin

Gregory Irwin
  • Sustaining Members
  • 608 posts
  • 1st Assistant Camera
  • Work is based in Los Angeles but I live elsewhere.

Posted 16 May 2015 - 12:53 PM

What about swing and tilt lenses?

G
  • 0

#3 Mark Dunn

Mark Dunn
  • Basic Members
  • PipPipPipPip
  • 2761 posts
  • Other
  • London

Posted 16 May 2015 - 12:59 PM

Or a split dioptre, which is half a closeup lens. The rest of the filter mount is empty.

http://www.ebay.co.u...=item51a8c95459

Or a macro lens which will focus very close then rack out.

The "very wide lens" you speak of may focus close enough anyway.


Edited by Mark Dunn, 16 May 2015 - 01:01 PM.

  • 0



Abel Cine

Ritter Battery

Media Blackout - Custom Cables and AKS

Metropolis Post

CineLab

Willys Widgets

Paralinx LLC

rebotnix Technologies

The Slider

Visual Products

Glidecam

Tai Audio

Rig Wheels Passport

Broadcast Solutions Inc

FJS International, LLC

Wooden Camera

New Pro Video - New and Used Equipment

CineTape

Aerial Filmworks

Technodolly

Gamma Ray Digital Inc

FJS International, LLC

Willys Widgets

New Pro Video - New and Used Equipment

Ritter Battery

Rig Wheels Passport

CineLab

Paralinx LLC

Metropolis Post

Visual Products

Aerial Filmworks

Gamma Ray Digital Inc

The Slider

Media Blackout - Custom Cables and AKS

Technodolly

Abel Cine

Tai Audio

Glidecam

Wooden Camera

Broadcast Solutions Inc

rebotnix Technologies

CineTape