An innovative product by NISI. With this new adapter ring developed by NISI, the NISI 150mm square holder for NIKON 14-24 lens can now also be install in SIGMA 12-24mm lens too. Just be installing a special adapter ring for SIGMA 12-24mm lens onto the Sigma lens, then install the NISI 150mm square holder Nikon 14-24 and you are ready to go. Visit filtersforcameras.com where you can see all of the manufacturers we are distributor for. We’d appreciate it if you could like and share our facebook page www.facebook.com/camerafiltersireland
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