
DETAILS
The Speed Booster works by shrinking the image circle of your Canon EF lens down to better fit the smaller sensor of Micro Four Thirds cameras. This has the effect of making the field of view of the lens wider or, in other terms, reducing the crop factor of the camera from 2x to 1.4x. For example, a 40mm lens becomes an effective 56mm with this Speed Booster on a Micro Four Thirds camera instead of the 80mm effective view you'd have with a straight adapter. This is closer to the APS-C view of 64mm for this particular lens length example. Your Micro Four Thirds camera will render less like a Micro Four Thirds sensor and more like the larger APS-C or Super 35 sensor thanks to this Speed Booster, plus you have the benefit of using a wide variety of Canon EF lenses while retaining lens image stabilization.
Please see the "Notes" section for important information about autofocus and lens compatibility.
NOTES