Fotodiox Pro B4 Magic Adapter - B4 (2/3") Lenses to Black Magic MFT Cinema Cameras

• Description
• In The Box
• Specs
• Compatibility
• Notes

• • Offers the creative flexibility of a powered zoom lens for a fraction of the price of similar options
• • Fotodiox Pro Premium Grade "No Play" Adapter, Infinity Focus Guaranteed
• • Premium quality brass construction with a smooth surface for effortless mounting
• • Take advantage of the typical 15x and 20x zoom lengths to be even more flexible with camera placement
• • Limited 2-Year Manufacturer Warranty

In the DSLR filmmaking world, it's always been challenging and expensive to attach a powered zoom lens onto your camera. In recent years, a few manufacturers have offered motorized zoom lenses at prices of $10,000-20,000 – a premium price that keeps these versatile lenses out of reach for most digital filmmakers. DSLR zoom still photography lenses are less than idea for dramatic zoom shots because they are rarely “parfocal” i.e. the aperture changes over the duration of the zoom, which spoils the shot.

Older ENG (Electronic News Gathering) lenses are a breed of powered zoom lenses that have many of the features that a modern digital filmmaker needs. Affordable ENG lenses are easy to find, and can create great HD video, but making them work with today's digital cameras has been an expensive and difficult challenge. Until now...

The B4 Magic Lens Adapter is an all brass adapter with built-in optics to correct your B4 lens' image to align with the Black Magic Pocket Cinema Camera's¹ sensor. There is no vignetting¹, even when the lens is zoomed out all the way. The B4 Magic Lens Adapter features a built in tripod foot with an integrated Arca-Swiss quick-release compatible base. Like other teleconverters, the optics built into the B4 Magic Lens Adapter will reduce the light hitting your sensor up to 1-stop.

The adapter also comes with a B4 Magic Lens Adapter Cap; this custom all-metal cap fits on the front of the B4 Magic Lens Adapter. B4 body caps are exceedingly rare, so we created one to keep the optics of the B4 Magic Lens Adapter safe when you remove your B4 lens.

Once you mount a powered zoom on the Black Magic Pocket Cinema Camera¹ and pair it with the Turbopack 9000 Power Pack, a whole new world of dramatic cinematography opens up. Create a smooth & slow creeping zoom into a subject to heighten drama, keep up with your subject at fast-moving live events like sports or rock concerts, take advantage of typical 15x and 20x zoom lengths for more camera placement flexibility... the list goes on and on.

Once you source a B4 lens, adding the B4 Magic Adapter will you allow to mount a ENG zoom lens onto your Black Magic Pocket Cinema Camera¹. Go handheld, mount the camera on a rig or tripod, and you're ready to add the creative possibilities of a zoom lens onto your Black Magic Pocket Cinema Camera.

¹ - See

and

section for camera & lens requirements and limitations.

• • B4 Magic Adapter (w/ Corrective Glass)
• • B4 Magic Cap (Protective Metal Cap)
• • MFT Rear Cap (Protective Plastic Cap)

Lens Requirements: B4 mount designed for 2/3" sensor - look for a better grade lens that resolves to HD resolutions. Impossible to list them all here. Even in the SD era, there are lenses that resolve to HD quality. A little research will uncover numerous lens bargains on the secondary market. You can easily find B4 lenses on KEH, eBay, B&H, Craigslist and practically anywhere that sells used video production gear, with prices starting as low as $100.

• • The B4 Magic Adapter was designed specifically for the original Blackmagic Cinema Cameras listed above, which have Super 16 size sensors of ~12.48mm x 7.02mm. The B4 Magic adapter will only give you full coverage on a sensor this size or smaller. Most modern Blackmagic Cameras and Micro Four Thirds cameras have sensors that are larger than Super 16, which means you'll get vignetting when you use the B4 Magic adapter and a B4 lens on these cameras.
• • The B4 Magic Lens Adapter is designed to work with lenses set to f5.6 and greater, (most B4 lenses are optimized for best focus at f5.6 and greater). Please be aware that shooting below f/5.6 may result in soft focus depending on your lens.
• • This is a manual adapter, so lens functions that rely on electronic communication with the camera body (autofocus, AE metering, image stabilization, etc.) will be disrupted.
• • Set your exposure manually or meter using your camera's Aperture Priority (stop-down) mode.
• • All pictures are for illustration purposes only. Actual product may vary slightly due to ongoing improvements in design.