Super 16 sensor with a B4 2/3" To Micro 4/3 Adapter at DVinfo.net

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Old November 5th, 2014, 09:21 AM   #1
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Super 16 sensor with a B4 2/3" To Micro 4/3 Adapter

Is it true that a lens with extender (2X) is required to prevent vignetting on a BMD Studio Camera with a MTF Services MTB4M43: B4 2/3" To Micro 4/3 Adapter? The BMD Studio Camera is a super 16 sensor, just like the BMPCC.

Blackmagic Design Studio Camera HD (Super 16mm Sized Image Sensor) 2.88X crop?
12.48 x 7.02 mm same as BMPCC (Super 16mm Sized Image Sensor)

I think there was vignetting was occurring on the MFT 2.5K camera with the MTB4M43 adapter...

Blackmagic Design Cinema Camera (MFT Mount) 2.3X crop?
Actual: 16.64 x 14.04 mm

Anyone have knowledge of this?
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Old November 6th, 2014, 09:36 AM   #2
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Re: Super 16 sensor with a B4 2/3" To Micro 4/3 Adapter

#::nevermind::

This adapter does require the 2x to be engaged on the lens.

To use a lens without the 2x engaged, you will need the B4S16M43 optical adapter which is specifically designed for S16 size sensor cameras.
https://www.lensadaptor.com/b4-23-su...ro-four-thirds
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Old November 6th, 2014, 05:05 PM   #3
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Re: Super 16 sensor with a B4 2/3" To Micro 4/3 Adapter

B4 on the BMPCC is really nice, except for the CA (which varies from lens to lens). A proper lens makes it a whole different camera :) I just wish someone had an affordable 1.5x TC for B4 - it would be perfect for S16 size sensors and 2/3" ENG lenses...
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Old November 11th, 2014, 02:05 PM   #4
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Re: Super 16 sensor with a B4 2/3" To Micro 4/3 Adapter

I own a BMPCC and picked up a $100 to b4 to mft mount from eBay. My 2/3 eng lens does not have a 2x extender and it vignettes quite a bit. Don't really have anything to add about the BMCC, but just confirming that the heavier cropped bmpcc sensor does suffer from vignetting on a standard 2/3 lens. Having used many 2/3 eng cameras on video shoots in the past with a 2x entender. Even those eng cameras don't look great when you engage the 2x extender. In order to properly outfit the BMPCC and BMCC with a quality lens you need to get an more modern 2/3 HD lens, because they seem to have a better optics in the 2x extender. Unless you find a steal, one of those lenses will set you back $4000+
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Old December 26th, 2014, 09:57 AM   #5
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Re: Super 16 sensor with a B4 2/3" To Micro 4/3 Adapter

Mark - we've been selling a lot of this one:

Fujinon XA20sx8.5BERM-K3
HD Lens w/ 2x Extender

Product Highlights:
- 8.5-170mm for 2/3" Format
- 20x Zoom Ratio and 2x Extender
- Fast f/1.8 Max Aperture at 8.5-113mm
- Manual Focus and Servo Zoom
- Innerfocus and QuickZoom
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Old January 22nd, 2015, 01:38 PM   #6
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Re: Super 16 sensor with a B4 2/3" To Micro 4/3 Adapter

The link above is bad now because it was changed for some reason. This works now:

https://www.lensadaptor.com/b4-23-su...cro-43-adaptor

B4 2/3" to Super16 Micro 4/3 Adaptor
Use B4 2/3" lenses on a Micro Four Thirds mount camera with a Super16 sensor. This means you can use your B4 lenses on the Blackmagic Pocket Cinema Camera.

MTF own stainless steel C mount.
We recommend you use HD lenses for the highest quality possible.

Provision to accept the MTF M/43 & E Mount Support & DTap to 12Pin Hirose Cable.

Please note: although it has a Micro Four Thirds mount, this adaptor will not cover anything larger than a Super16 size sensor.

There will be approximately 0.8 stop of light loss when using this adaptor.

Other Camera Fits:
Blackmagic Pocket Cinema Camera, Blackmagic Production Camera 4K, Blackmagic Studio 4K, Blackmagic Studio Camera HD, Micro Four Thirds
Other Lens Fits:
B4 2/3"
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