【Enhance Focus and Refraction】 Create a captivating focus on your subject with the depth of field blur and refraction effects using this unique diopter filter. It adds a blur effect on two sides while maintaining clarity at the center of the frame to highlight your main subject without further post editing 【Rotate to Adjust】 Rotate 360° to adjust the filter to achieve varying levels of blur effects on your images and explore new possibilities with these unique and personalized blur effects 【Highly Transparency】Made from premium K9 solid optical glass, this filter boasts exceptional transparency, allowing for crystal clear images even with this special effect 【Take Care】 Directly attach to any 67mm lenses, or use an extra adapter, boost, or buck ring for lenses of other sizes. It is also recommended to keep aperture range between 2.8 and 7.0 for optimal results 【Package Contents】 1x 67mm center field split diopter filter, 1x cleaning cloth and 1x filter pouch