Jump to content


Photo

Anamorphic Lens vs. Letterbox


  • Please log in to reply
2 replies to this topic

#1 Daniel Meier

Daniel Meier
  • Basic Members
  • PipPipPip
  • 100 posts
  • Cinematographer
  • Leipzig, Germany

Posted 14 September 2016 - 06:37 AM

Last weekend I shot a music video on the BMPCC and FS700.

The director wants the final clip to be 2,35:1.

 

Since this was a no-budget shoot we were limited to DSLR lenses. I really had a hard time getting a narrow depth of field in my shots, since I had to back the camera up so much to not cut of the persons head or torso.

 

What if I were to shoot this same shot with a 1,33x anamorphotic lens. Would that extend the horizontal field of view (to the sides) so I wouldn't have to back up any longer?

 

 


  • 0

#2 David Mullen ASC

David Mullen ASC
  • Sustaining Members
  • 20410 posts
  • Cinematographer
  • Los Angeles

Posted 14 September 2016 - 07:18 AM

Yes, by 1.33X... but since depth of field is controlled by f-stop, not just distance focused, you can run into situations where your spherical lens is so much faster than your anamorphic lens that you get less depth of field in spherical. Roughly the depth of field compensation is the same as the squeeze ratio, so assuming the same distance and field of view, you'd have to open up by 1.3 stops on your spherical lens to match the depth of field of your 1.3X anamorphic lens.
  • 0

#3 Darrell Ayer

Darrell Ayer
  • Basic Members
  • PipPipPip
  • 102 posts
  • Cinematographer
  • New York

Posted 14 September 2016 - 01:48 PM

David Mullen, just answered a quiestion rolling around in the back of my head for a long time.  Thank you sir.


  • 0


Broadcast Solutions Inc

Gamma Ray Digital Inc

Tai Audio

New Pro Video - New and Used Equipment

Paralinx LLC

Rig Wheels Passport

Visual Products

Metropolis Post

Wooden Camera

Media Blackout - Custom Cables and AKS

Ritter Battery

Abel Cine

CineLab

Glidecam

FJS International, LLC

Metropolis Post

CineLab

New Pro Video - New and Used Equipment

Tai Audio

Paralinx LLC

Gamma Ray Digital Inc

Abel Cine

Wooden Camera

Ritter Battery

Rig Wheels Passport

Visual Products

FJS International, LLC

Media Blackout - Custom Cables and AKS

Glidecam

Broadcast Solutions Inc