The Raynox HD-7062PRO 62mm High Quality Wideangle Conversion Lens is made of the high index optical glass elements with three-group/three-element lens formula. It is possible to achieve an amazing high quality wideangle lens of 540 lines/mm resolution. There will be no reduction of light value when this conversion lens is attached to the camera's lens.
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Raynox HD-7062PRO 62mm 0.7x High Quality Wide Angle Converter Lens