Focal reducing lens?

Started 2 months ago | Discussions thread
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TBsq New Member • Posts: 18
Focal reducing lens?

I want to buy lenses for MFT sensor, but for example instead of buying a 25mm lens that would be a FOV equivalent of a 50mm that just just crop the image circle, does it exist a 50mm lens that shrinks the image circle to the size of the MFT sensor like a speed booster would?

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