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- What problems does it solve? Step Up rings are very common, but unlike other innovative step-up rings from Freewell is a magnetic as well as a thread filter system, so you can now use Freewell magnetic quick swap filters and your threaded filters in one step-up ring.
- Built: Made of CNC machined aluminum with black color to avoid any reflection or leakage during your photography.
- How do I find my filter thread size? Your lens thread size will be printed underneath your lens cap or written somewhere on the lens barrel. Please make sure to order the correct size; otherwise, it will not fit your camera lens.