BMPCC6K EF-S Lenses?

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

Aaron Hinton

  • Posts: 57
  • Joined: Sat Mar 07, 2015 5:46 pm

BMPCC6K EF-S Lenses?

PostSat Aug 10, 2019 10:02 pm

Hey friends,

Does anyone know if the new BMPCC6K will support EF-S lenses? I seem to recall the EF URSA and old Cinema Camera supporting EF-S.
Aaron Hinton
Offline
User avatar

Jeff_kirkland

  • Posts: 46
  • Joined: Wed Aug 22, 2018 6:10 am
  • Real Name: JEff Kirkland

BMPCC6K EF-S Lenses?

PostSat Aug 10, 2019 10:04 pm

It's super 35, which is close enough to EF-S so it should. I use EF-S lenses on all my other Super 35 cameras.


Sent from my iPad using Tapatalk
My System:
Mac Pro (Late 2013)
macOS 10.14, 3.5 GHz 6-Core Intel Xeon E5, 16 GB 1866 MHz DDR3, AMD FirePro D500 3 GB
Offline

Aaron Hinton

  • Posts: 57
  • Joined: Sat Mar 07, 2015 5:46 pm

Re: BMPCC6K EF-S Lenses?

PostSat Aug 10, 2019 10:05 pm

Thank you! But will EF-S lenses properly mount to the EF body? I know some EF bodies can't mount EF-S lenses at all, right? (Or am I mistaken?)
Aaron Hinton
Offline
User avatar

Jeff_kirkland

  • Posts: 46
  • Joined: Wed Aug 22, 2018 6:10 am
  • Real Name: JEff Kirkland

Re: BMPCC6K EF-S Lenses?

PostSat Aug 10, 2019 10:13 pm

An EF-S lens won't cover a full frame sensor without vignetting and have an extra bit that sticks out the back, so it would make sense to do something to stop you mounting them to a full-frame camera but I've never owned anything full-frame so I can't speak from experience. You also can't mount them to a lot of speedboosters, because of the extra glass in the adapter.

But it would make zero sense to me to prevent the lenses designed for the size of sensor in the camera from mounting to it. I guess someone who's camera is due to arrive next week will be able to confirm it.


Sent from my iPad using Tapatalk
My System:
Mac Pro (Late 2013)
macOS 10.14, 3.5 GHz 6-Core Intel Xeon E5, 16 GB 1866 MHz DDR3, AMD FirePro D500 3 GB
Offline

Aaron Hinton

  • Posts: 57
  • Joined: Sat Mar 07, 2015 5:46 pm

Re: BMPCC6K EF-S Lenses?

PostSat Aug 10, 2019 10:16 pm

Got it. Thanks so much, Jeff! Very helpful. I think you're probably right that it will work then. I'll be excited to see for sure, once it gets it people's hand. Thanks again.
Aaron Hinton
Offline

Denny Smith

  • Posts: 11420
  • Joined: Thu Aug 01, 2013 4:19 pm
  • Location: USA, Northern Calif.

Re: BMPCC6K EF-S Lenses?

PostSat Aug 10, 2019 11:50 pm

Since the Pocket 6K is a mirrorless Camera, the extra depth of the lens back, which is an issue on a Canon EF DSLR, should not be an issue. Not sure if the EF-S lenses have a different lens contact setup, but Focus and Iris control should be the same. ;)
Denny Smith
SHA Productions
Offline

Tom Donalek

  • Posts: 30
  • Joined: Wed Apr 23, 2014 4:31 pm

Re: BMPCC6K EF-S Lenses?

PostMon Aug 12, 2019 5:17 pm

I have the Viltrox adapter that does not have internal glass (mechanical and electronic adapter only, no "speedbooster" effect). It works with both EF and EF-S lenses electronically. (Not all models, though.) Because there is not internal optics, the EF-S lenses will physically mount without the EF-S rear flange hitting anything. That suggests that overall, the EF-S contacts and control system are mostly the same as for EF lenses.

Looking at the photos BM have published of the BMPCC6k, I am concerned by what the inner flange looks like - the black plastic(?) inside the metal mount ring. It looks to be very close to the contacts, and the irritating EF-S plastic rear flange sticks out past the contacts by about 3mm. It would be helpful if Blackmagic would formally confirm that there is not a physical conflict mounting unmodified EF-S lenses on the camera.
Offline

Denny Smith

  • Posts: 11420
  • Joined: Thu Aug 01, 2013 4:19 pm
  • Location: USA, Northern Calif.

Re: BMPCC6K EF-S Lenses?

PostMon Aug 12, 2019 6:39 pm

Cheers hat would be the best bet Tom. Anyone have a EF-S lens they want to send to BMD in Fremont to get it tested? :roll:
Cheers
Denny Smith
SHA Productions
Offline

Emilian Dechev

  • Posts: 363
  • Joined: Fri Jan 15, 2016 5:09 pm

Re: BMPCC6K EF-S Lenses?

PostTue Aug 13, 2019 9:34 pm

I am also interested, if anyone tried a EF-S lens on the BMPCC 6K ? A Canon 17-55 f/2.8 would be a nice candidate for an overall good lens.
Offline

Kristian Lam

Blackmagic Design

  • Posts: 802
  • Joined: Tue Aug 21, 2012 1:11 pm

Re: BMPCC6K EF-S Lenses?

PostTue Aug 13, 2019 10:54 pm

Yes it will work.
Offline

Emilian Dechev

  • Posts: 363
  • Joined: Fri Jan 15, 2016 5:09 pm

Re: BMPCC6K EF-S Lenses?

PostTue Aug 13, 2019 11:24 pm

Thanks!
Offline
User avatar

Jean Capdouzey

  • Posts: 114
  • Joined: Mon Jun 03, 2019 2:56 am
  • Location: Carcassonne, France
  • Warnings: 1
  • Real Name: Jean Capdouzey

Re: BMPCC6K EF-S Lenses?

PostWed Aug 14, 2019 12:35 am

Jeff_kirkland wrote:An EF-S lens won't cover a full frame sensor without vignetting and have an extra bit that sticks out the back,


It's not a full frame sensor. It's S35 which virtually APS-C so the EF-S lenses will work fine.
Bonjour mes amis peu profonds ici
je déteste le narcissisme
Offline

John Griffin

  • Posts: 274
  • Joined: Sun Aug 23, 2015 4:18 pm

Re: BMPCC6K EF-S Lenses?

PostWed Aug 14, 2019 6:34 am

While EF-S lenses will physically fit they may not be the best choice for exploiting the full potential of the P6k sensor. In short a lot of EF-S lenses are 'budget' designs and you may find performance at the edges of the frame disappointing compared to the better full frame lenses where the image is being cropped out of the central section of the lenses projected image. At least though you don't have to deal with the uncorrected optical distortions in native M43 lenses on the P4k.
Dell XPS 9560 i7 7700HQ,GTX 1050m, 32gb 1Tb NVME C drive, 1TB SSD 2nd internal as Cache. GTX 1080ti eGPU, 4x 7200rpm 1.5tb HD's in RAID 0 on USB-C as media storage. Win10 x64, Resolve Studio (all latest versions and up to date drivers)
Offline

Frank Engel

  • Posts: 280
  • Joined: Thu May 17, 2018 11:09 pm
  • Real Name: Frank Engel

Re: BMPCC6K EF-S Lenses?

PostWed Aug 21, 2019 12:38 pm

A lot of EF format lenses are budget lenses too.

Less expensive lenses in the EF-S format can provide shorter focal lengths that may be more applicable to the smaller sensor size when shooting wide angles. Useful particularly for those... on a budget 8-)
Offline

Tom Donalek

  • Posts: 30
  • Joined: Wed Apr 23, 2014 4:31 pm

Re: BMPCC6K EF-S Lenses?

PostThu Aug 22, 2019 3:00 am

You need to look at the EF-S lens options model by model. Many are cheap, kit lenses, which may be good enough, or may not be for your use. I don't have one, but supposedly, the Canon EF-S 17–55mm f/2.8 IS USM (the most expensive one Canon makes, IIRC) has great optics, for example.
Offline

Rsmith6k

  • Posts: 1
  • Joined: Thu Aug 22, 2019 10:55 am
  • Real Name: Richard Smither

Re: BMPCC6K EF-S Lenses?

PostThu Aug 22, 2019 12:11 pm

I've been torn between the Canon 17-55 2.8 and the Sigma 18-35 1.8 for the last week.

Pulled the trigger this morning on the Canon because of the IS and because the Sigma is quite heavy.
Offline

Uli Plank

  • Posts: 5194
  • Joined: Fri Feb 08, 2013 2:48 am

Re: BMPCC6K EF-S Lenses?

PostFri Aug 23, 2019 4:09 am

If you are into run-n-gun it's a good decision, not only because of IS, but you'd have problems to keep focus at 1.8 anyway.
But for controlled shooting, the Sigma is leaving the Canon kit lens in the dust.
Resolve Studio and Fusion Studio under MacOS Mojave 10.14.6
iMac 2017 Radeon Pro 580 8 GB VRAM and 32 GB RAM
Mac mini 16 GB RAM plus eGFX Breakway Radeon RX 580
Offline
User avatar

Jean Capdouzey

  • Posts: 114
  • Joined: Mon Jun 03, 2019 2:56 am
  • Location: Carcassonne, France
  • Warnings: 1
  • Real Name: Jean Capdouzey

Re: BMPCC6K EF-S Lenses?

PostFri Aug 23, 2019 10:06 am

John Griffin wrote:While EF-S lenses will physically fit they may not be the best choice for exploiting the full potential of the P6k sensor. In short a lot of EF-S lenses are 'budget' designs and you may find performance at the edges of the frame disappointing compared to the better full frame lenses where the image is being cropped out of the central section of the lenses projected image. At least though you don't have to deal with the uncorrected optical distortions in native M43 lenses on the P4k.


Rubbish.
Bonjour mes amis peu profonds ici
je déteste le narcissisme

Return to Cinematography

Who is online

Users browsing this forum: Bing [Bot] and 307 guests