Jump to content


Photo

Metabones speedboster true aperture

Metabones Speedboster aperture

  • Please log in to reply
2 replies to this topic

#1 Stefano Stroppa

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

Posted 21 March 2018 - 07:21 AM

Hi all :)

 

When using a metabones speedboster, how do you really gauge the true aperture the lens is giving you? I mean from a practical point of view, you keep it mind that you get +1 stop of light hitting the sensor. 

 

But from a tech point of view, if your lens is set at let’s say 2.8 (and it’s the fastest the lens can get to), does the camera shows you the added stop? Or is it a passive speedboaster that doesn’t trasmit aperture values?

 

In case it doesn’t trasmit that, you just keep in mind that if the lens is set at 11, you could set f/8 on your light meter?

 

So in practice can you use a ND 0.3 paired to the speedbooster to get a slightly shallower depth of field without having to change your lens aperture?

 

 

Thank you, 

Stefano


  • 0

#2 Mark Kenfield

Mark Kenfield
  • Basic Members
  • PipPipPipPip
  • 1153 posts
  • Cinematographer
  • Australia/Wherever The Wind Takes Me

Posted 21 March 2018 - 10:29 AM

To compensate for the Speedbooster, I'd simply up the ISO on my meter by a stop.


  • 0

#3 Stefano Stroppa

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

Posted 21 March 2018 - 10:33 AM

To compensate for the Speedbooster, I'd simply up the ISO on my meter by a stop.

Right, I didn't think about it. Thanks Mark!


  • 0



Abel Cine

Gamma Ray Digital Inc

Technodolly

Glidecam

The Slider

Aerial Filmworks

Ritter Battery

Tai Audio

Media Blackout - Custom Cables and AKS

Rig Wheels Passport

Willys Widgets

Visual Products

CineTape

rebotnix Technologies

Metropolis Post

Broadcast Solutions Inc

Wooden Camera

Paralinx LLC

FJS International, LLC

CineLab

Paralinx LLC

Rig Wheels Passport

Metropolis Post

Aerial Filmworks

Glidecam

Tai Audio

CineTape

CineLab

Technodolly

Abel Cine

Wooden Camera

Willys Widgets

Gamma Ray Digital Inc

Visual Products

Broadcast Solutions Inc

The Slider

Media Blackout - Custom Cables and AKS

FJS International, LLC

rebotnix Technologies

Ritter Battery