Fotodiox Pro Fusion Adapter, Smart AF Adapter - Compatible with Canon EOS (EF / EF-S) D/SLR Lenses to Select L-Mount Alliance Mirrorless Cameras with Full Automated Functions
Select L-Mount Alliance Camera Compatibility List for Fusion Adapter Types
Select L-Mount Alliance Mirrorless Cameras - Popular models include:* Note - DO NOT USE ON LEICA BRAND L-MOUNT CAMERAS.
Product Highlights:
DO NOT USE ON LEICA BRAND L-MOUNT CAMERASMounts Canon EOS Lenses to L-Mount Cameras
Whether you're shooting digitally or on film, Fotodiox offers the world's largest selection of lens adapters. Mix camera/lens platforms or reinvigorate vintage glass; Fotodiox has hundreds of ways to mount lenses onto your DSLR or MILC camera. Our adapters deliver infinity focus and a sturdy build for lasting quality.
The adapter is designed to offer an inexpensive system that allows for the use of a vast range of lenses. This adapter system is particularly useful for mounting tilt/shift and other specialty lenses not available in the native format to the entire range of cameras, providing for an inexpensive alternative for photographers and videographers alike.
Built-In FUSION Technology
Sometimes you need more than a simple adapter to mount a lens onto a camera - you need real power. Seize control over the electronic features of your lenses with a FUSION lens adapter. This adapter enables EXIF and aperture data to be transmitted to and controlled by the camera. Different lenses may exhibit different operating characteristics depending on lens age and manufacturer. We recommend testing individual lenses in your setup before critical shoots.
Fotodiox's Fusion line of adapters now include a micro USB port to allow for firmware updates providing a nearly future proof solution for users by including new lenses and fixing possible bugs through firmware updates. For firmware updates and directions, please see the firmware update article for this adapter in the Fotodiox technical support knowledge base.
To be notified for firmware upgrades, utilize the contact form below.
Restores Automated Functions
The FUSION technology built into the adapter enables electronic communication between mixed lens and camera platforms. FUSION adapters enable auto focus, aperture control, image stabilization, and more. Although the adapter will allow you to mount any Canon EF lens, not all lenses will perform the same. Lens firmware, focusing motors, and age of lens will all affect the speed, reliability and accuracy of the adapter.
The function button on this adapter will turn off all electronic communication so that manual lenses can be used properly on L-mount cameras. The adapter draws the power it needs from the camera. Now you’re ready to take advantage of your camera’s automated functions as well as IS and EXIF data from compatible lenses.
Precise & Solid Connection; All-Metal Construction
Fotodiox employs Professional Photographers in every aspect of development and design to create products that are built to last. The Pro line of adapters is crafted to withstand the rigors and demands of the professional photographer. Our adapters are manufactured with precise tolerances, providing a solid, gap free, no wiggle connection for stress free use. No adjustments needed! Fotodiox adapters are meant to be taken off and put back on your camera as much as needed while remaining as precise as the day you bought them.
Fotodiox Pro adapters feature all-metal, no plastic construction to create a secure connection between your glass and camera that will not degrade over time, keeping the lens-camera connection secure with every use. We use chrome plated brass mounts for enhanced durability and reliability. All Fotodiox products are backed by our 24-month Fotodiox Manufacturer Warranty.
0.3 lb (4.2 oz)Shipping Dimensions5 x 5 x 5 in (12.7 x 12.7 x 12.7 cm)
1 lb (16 oz)ManufacturerFotodiox Inc.WarrantyLimited 24-Months
Crop factor’ is incorrect and misleading terminology, ’35mm equivalent focal length’ is more accurate as what you are really asking is; what is the new angle of view of my lens when on this camera?
In photography, the 35mm equivalent focal length is a measure that indicates the angle of view of a particular combination of a camera lens and film or sensor size. The term is useful because most photographers experienced with interchangeable lenses are most familiar with the 35mm film format so this gives a common ground for everything to refer to. All crop factors are based on 35mm full frame as a standard 1:1 reference point.
On any 35mm film camera, a 28mm lens is a wide-angle lens, and a 200mm lens is a long-focus lens. However, now that digital cameras have mostly replaced 35mm cameras, there is no uniform relation between the focal length of a lens and the angle of view, since the size of the camera sensor also determines angle of view, and sensor size is not as standardized as film size was. The 35mm equivalent focal length of a particular lens–sensor combination is the focal length that one would need for a 35mm film camera to obtain the same angle of view.
35mm equivalent focal lengths are calculated by multiplying the actual focal length of the lens by the crop factor of the sensor. Typical crop factors are 1.5x for Nikon APS-C (“DX”) format, 1.6x for Canon APS-C format, 2x for Micro Four Thirds format, crop factors of 5x to 6x for compact digital cameras and even higher crop factors for built-in cameras of mobile devices like cell phones or tablets.
Everything is based on 35mm being the ‘Standard’ 1:1 reference point:
| Lens Size | Film/Sensor Size | Divide By |
| 4×5 | 35mm FF | 3.4 |
| 6×7 | 35mm FF | 2.1 |
| 6×6 | 35mm FF | 1.6 |
| 6×4.5 | 35mm FF | 1.3 |
Using a 80mm Hasselblad (6×6) lens as an example: 80 ÷ 1.6 = 50mm. So an 80mm Hassy lens is going to give a similar angle of view to a 50mm lens when used on a 35mm full frame camera.
Moving down in size from 35mm needs additional math. If the customer does not have a full frame camera say an APS-C or MFT instead, use the chart below:
| Lens Size | Film/Sensor Size | Multiply By |
| 35mm FF | APS-H | 1.3 |
| 35mm FF | APS-C/DX | 1.6 |
| 35mm FF | 4/3 – MFT | 2 |
So an 80mm Hassy lens is going to give a similar angle of view to a 205mm lens when on a APS-C camera. 80 * 1.6 = 128 * 1.6 = 204.8 ~ 205mm
x = √ (a1*a2) / (b1*b2) [x = √ (60*45) / (36*24)]
a1 & a2 are larger format sensor size dimensions
b1 & b2 are smaller format sensor size dimensions
Normal lens size, and Equivalent sizes are rough
A. 4×5 in, normal lens 150mm, crop factor 0.29
B. 6×9 cm, normal lens 105mm, crop factor 0.40
C. 2 1/4 x 3 1/4 in, normal lens 100mm, crop factor 0.43
D. 6×7 cm, normal lens 85mm, crop factor 0.50
E. 6×6 cm, normal lens 80mm, crop factor 0.53
F. 6×4.5 cm, normal lens 75mm, crop factor 0.57
G. 35mm and FX digital, normal lens 43mm, crop factor 1.00
H. DSLR DX (APC), normal lens 28, crop factor 1.6
I. Large compact (e.g., G10), normal lens 9.5mm, crop factor 4.52
J. Regular compact, normal lens 7.18mm, crop factor 5.6
K. Mobile phone camera (e.g., iPhone), normal lens 4.5mm, crop factor 9.5
All pictures are for illustration purposes only. Actual product may vary slightly due to ongoing improvements in design.