Answers.Body: <p>I'm not familiar with the setup you described, but does that adapter have some sort of iris control built into it?  I have the adapter pictured below and it doesn't allow the BMPCC to adjust the aperture of the lens, which means I need to use the iris control to adjust the amount of light getting let into the camera.</p>
  
  <p><a href="https://i.sstatic.net/k04uG.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/k04uG.jpg" alt="adapter"></a></p>
  
  <p>The vignetting is caused by how the iris inside the adapter functions. When you close the iris, to restrict the light entering the camera, it also has the side-effect of creating a vignette.  This is the main reason I stopped using the BMPCC and went back to using the regular BMCC, because I don't have any MFT lenses.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-05-20T11:18:08.400Z
Answers.Text: no, arrib to mft adapter doesn't have IRIS control inside. [photo](http://www.rafcamera.com/media/extendware/ewimageopt/media/inline/61/8/arri-bayonet-arri-b-lens-to-mft-micro-4-3-camera-mount-adapter-514.jpg)
Answers.UserDisplayName: Sergey P.
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-05-20T13:54:20.250Z
Answers.Text: @SergeyP. thanks for the info.  I'm not sure what the issue is then, sorry!
Answers.UserDisplayName: Manly
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-05-19T17:35:34.233Z
Answers.LastActivityDate: 2016-05-19T19:26:48.233Z
Answers.LastEditDate: 2016-05-19T19:26:48.233Z
Answers.UserDisplayName: Manly
Body: <p>BMPCC does not support super16 lens?</p>
  
  <p>Example 1.3T - 16T 
  <a href="https://www.youtube.com/watch?v=oOxKb_X7tMA" rel="nofollow">video test</a></p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-05-27T09:28:10.747Z
Comments.Text: I have an old Angénieux zoom on a 16mm Bolex that would vignette quite badly at some zoom/aperture settings, and it was made for 16mm. Maybe it's just the way the lens is?
Comments.UserDisplayName: stib
Tags: <video><camera>
Title: BMPCC + rafcamera arri b to mft + optar 1.2/12mm = vignetting
UserDisplayName: Sergey P.
ThreadText: # BMPCC + rafcamera arri b to mft + optar 1.2/12mm = vignetting
  
  (Asked by: username_0 on 2016-05-19)
  
  BMPCC does not support super16 lens?
  
  Example 1.3T - 16T
  [video test](https://www.youtube.com/watch?v=oOxKb_X7tMA)
  
  **Tags:** video, camera
  
  > **Comments:**
  > **username_1**: I have an old Angénieux zoom on a 16mm Bolex that would vignette quite badly at some zoom/aperture settings, and it was made for 16mm. Maybe it's just the way the lens is?  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_2 on 2016-05-19. Score: 2
  
  I'm not familiar with the setup you described, but does that adapter have some sort of iris control built into it? I have the adapter pictured below and it doesn't allow the BMPCC to adjust the aperture of the lens, which means I need to use the iris control to adjust the amount of light getting let into the camera.
  
  [![adapter](https://i.sstatic.net/k04uG.jpg)](https://i.sstatic.net/k04uG.jpg)
  
  The vignetting is caused by how the iris inside the adapter functions. When you close the iris, to restrict the light entering the camera, it also has the side-effect of creating a vignette. This is the main reason I stopped using the BMPCC and went back to using the regular BMCC, because I don't have any MFT lenses.
  
  > **Comments:**
  > **username_0**: no, arrib to mft adapter doesn't have IRIS control inside. [photo](http://www.rafcamera.com/media/extendware/ewimageopt/media/inline/61/8/arri-bayonet-arri-b-lens-to-mft-micro-4-3-camera-mount-adapter-514.jpg)  
  > **username_2**: @SergeyP. thanks for the info.  I'm not sure what the issue is then, sorry!  
  
  ---
  
  