Got this camera?
Sell it with us.
Free appraisal in 24 h, payment in 48 h and free shipping. We inspect it, refurbish it and give it a second life.
Metabones Canon EF to Micro Four Thirds Speed Booster S
Got this camera?
Sell it with us.
Free appraisal in 24 h, payment in 48 h and free shipping. We inspect it, refurbish it and give it a second life.
Inspected at 28 points by our technicians. Every unit is unique. More details
Subscribe and save on your order
Get a discount code by email.
Thanks for subscribing.
Use the code at checkout:
CAMERAMARKET10
Protect your purchase for longer.
Your camera ships with 6 months of coverage included. Extend it if you want professional photographer peace of mind.
Units sold for parts do not qualify for extended warranty.
View warranty terms and conditionsThe Metabones Canon EF to Micro Four Thirds Speed Booster S is an optical adapter designed to mount Canon EF mount lenses on Micro Four Thirds (MFT) system cameras. This model, identified as MB_SPEF-m43-BM2, incorporates a lens group that reduces the focal length by 0.71x and increases the maximum aperture by one stop, offering a wider field of view and better performance in low-light conditions. It is exclusively compatible with active mount MFT cameras, such as the Olympus OM-D, Panasonic GH4, or Blackmagic Pocket Cinema Camera.
Read more Read less
Key Features
- Optical adapter with a 0.71x focal multiplier for Canon EF/EF-S lenses.
- Increases the maximum aperture by approximately 1 stop (e.g., f/2.8 becomes f/2).
- Metal construction with nickel-plated brass mount for enhanced durability.
- Requires an active MFT mount with electronic support for aperture and focus control.
- Includes a detachable lens hood and rear cap; not compatible with MFT cameras lacking electronic contacts.
Ideal For
Photographers and videographers looking to use Canon EF lenses on Micro Four Thirds bodies, gaining brightness and a field of view closer to the original. Perfect for users of cameras such as the Panasonic GH5, Olympus OM-D E-M1, or Blackmagic Pocket Cinema Camera 4K.
Condition
Second-hand product inspected by Camera Market. Includes a standard 6-month warranty and 24-48h shipping from Barcelona.
What condition is this item in?
Every item that leaves Camera Market goes through a <strong class="text-ink-strong">full functional and condition check</strong> before going on sale. We verify it performs correctly and document its real condition in the actual photos and the product details.
The specific cosmetic condition (marks, scratches, signs of use) is documented in the actual photographs and in the technical table on the product page. We do not use catalogue images.
What is included in the purchase?
You receive Metabones Canon EF to Micro Four Thirds Speed Booster S tested and ready to use, with the <strong class="text-ink-strong">check</strong> and the <strong class="text-ink-strong">6-month warranty</strong> included. As a pre-owned product, <strong class="text-ink-strong">it does not include the original box or packaging</strong> and the accessories <strong class="text-ink-strong">vary from unit to unit</strong>.
Want to know exactly what accessories this particular unit comes with? Message us on the website chat and we'll confirm before you buy.
What warranty does it have?
All our products include 6 months of free warranty covering functional defects and technical faults.
You can extend the coverage from the warranty section on this same page:
- 12 months for €29,90 · single payment
- 24 months for €52,31 · single payment · recommended
We also offer 14-day returns with no questions asked. If you are not satisfied, full refund.
How long does shipping take?
Standard shipping to the EU in 4–5 business days with tracking number. For mainland Spain, express 24–48 h option available at checkout.
Technical packaging with custom-cut foam and tamper-evident seals. Transit insurance included.
Why buy refurbished?
For three honest reasons: price (between 20 and 40% below new on high-end models), sustainability (keeping a body in circulation avoids manufacturing a new one and all its waste), and transparency: every unit has its own serial number, visible shutter count and inspection date.
Market depreciation does not affect optical or electronic performance. A well-kept, inspected item performs exactly like a new one.
