BMPCC6KPRO flange distance.

The place for questions about shooting with Blackmagic Cameras.
  • Author
  • Message
Offline

Pavel Rybakov

  • Posts: 129
  • Joined: Mon Apr 27, 2015 7:47 pm
  • Location: Kazan, Russia

BMPCC6KPRO flange distance.

PostMon Feb 21, 2022 4:00 pm

Seems Pocket 6K pro have a wrong flange distance. My Sigma 18-35 (and other zoom lenses) is not parfocal with it but parfocal on my Sony A6400. Does somebody corrected this with shims or any other way?
https://vimeo.com/nrggroup
...and sorry for my english =)
ASUS GL504GS laptop with Corei7 8750 & GeForce 1070, SSD Toshiba 512 NVMe + SSD Samsung 850 EVO 1 TB
Macbook Air M1 8/256
Offline
User avatar

Mark Foster

  • Posts: 2089
  • Joined: Tue Oct 27, 2015 10:59 am
  • Location: austria - no kangaroos +g*

Re: BMPCC6KPRO flange distance.

PostMon Feb 21, 2022 4:42 pm

my 18-35 is parfocal on my 4k and 6k pro
you can change it in the lens with the canon USB dock and software

https://www.sigma-global.com/en/accesso ... dock-ud01/
cMP 5.1 2x3,46/96GB/2x2TB SSD/4x4TB/7101A 4x2TB 970evo+/HP1344/BMD4k/RadeonVII
macOS 12.6.3
BMPCC 6k pro (7.9.1)
meike s35 cine 25mm, 35mm, 50mm, 75mm
resolve studio 18.1.4
mini panel
speed editor
desktop video 12.1
intensity pro 4k
atem extreme (8.6.1)
Offline

Pavel Rybakov

  • Posts: 129
  • Joined: Mon Apr 27, 2015 7:47 pm
  • Location: Kazan, Russia

Re: BMPCC6KPRO flange distance.

PostMon Feb 21, 2022 4:58 pm

Mark Foster wrote:my 18-35 is parfocal on my 4k and 6k pro
you can change it in the lens with the canon USB dock and software

https://www.sigma-global.com/en/accesso ... dock-ud01/

Will give it a try! Thank you!
But I have Canon lenses as well. So I have to correct flange distance somehow...
https://vimeo.com/nrggroup
...and sorry for my english =)
ASUS GL504GS laptop with Corei7 8750 & GeForce 1070, SSD Toshiba 512 NVMe + SSD Samsung 850 EVO 1 TB
Macbook Air M1 8/256
Offline

teryakiwok

  • Posts: 12
  • Joined: Mon Sep 11, 2023 3:41 pm
  • Real Name: Valentino Ralston

Re: BMPCC6KPRO flange distance.

PostMon May 27, 2024 11:30 am

Mark Foster wrote:my 18-35 is parfocal on my 4k and 6k pro
you can change it in the lens with the canon USB dock and software

https://www.sigma-global.com/en/accesso ... dock-ud01/


Is this really achievable using the sigma dock? My brand new 18-35 copy on a 6K Pro loses focus when zooming from one end to the other. If I set focus at 35mm, at 18mm it requires a focusing 'closer' to bring it back and vice versa. If this can be dialled out using the USB dock then I will buy one today!
Online
User avatar

carlomacchiavello

  • Posts: 2683
  • Joined: Tue Aug 28, 2012 6:04 pm
  • Location: italy

Re: BMPCC6KPRO flange distance.

PostTue May 28, 2024 6:34 pm

I had it and I used to upgrade firmware, I didn’t know that I can achieve this parafocal result
How could obtain it? What you have changed?


Inviato dal mio iPhone utilizzando Tapatalk

Return to Cinematography

Who is online

Users browsing this forum: Nick Heydon and 36 guests