B4 to MFT 1.1x Adapter with corrective glass (Plastic ring, Metal mount)


Out of stock


Upgrade your MFT camera with a broadcast television lens!

This optically corrective adapter will allow you to use your B4 lenses at a wide open because it corrects for the missing prism block normally found in television cameras.
With an extender of 1.1x it will cover your BMPCC 4K, GH6, BGH1 and similar in HD crop mode, and when engaging your 2x extender for applicable lenses, it will cover the entire MFT sensor (up to 2x crop factor)! This includes the Blackmagic Studio Camera 4K G1 and G2 (4K Pro and Plus) which does not have crop modes.

This adapter has a metal camera mount and lens mount with a hard-plastic spacer.


  • Camera mount: MFT / M4/3
  • Lens mount: B4 2/3″
  • Optical block: 1.1x extender, prism block correction


Optical quality will depend vastly on you choice in lenses. We reccomend HD lenses for use with our adapters as they give minimal chromatic abbervation.
We cannot guarantee the optical quality of your glass and will not accept returns on these grounds.


The MFT lens mount is not made for the weight of a B4 Broadcast lens. Use rods and lens support to take weight away from the camera body.
We do not cover or reimburse you for any damage done to your camera body.

Product overview:

Optical quality demo video:

Weight 0,384 kg
Dimensions 7,5 × 7,5 × 6,5 cm


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