Are you using a 37mm Lens? Here this FLD filter is with 37mm thread.
FLD is a filter for matching daylight film to fluorescent lighting (FL for Florescent Lighting, D for Daylight). On a film camera, you'd use it to correct for the different tone of light and give your shots a more natural looking colour.
37mm Thread FLD Filter Lens (Purple FL-D Filter Lens / Fluorescent Lighting Daylight Filter Lens)
Link to learn more:
Now, let's have a video over our 20X Microscope lens iwth an iPhone 6s DCkina 20X Super Macro (Microscope) Lens for Apple iPhone 6s / iP...
Product Tested: Magnet Attachment 0.68X Wide Angle Lens on iPhone 5c Link: http://dckina.com/index.php?main_page=product_info&cP...
iPhone 7 and iPhone 7 plus Wide Angle lens is available now! 2-in-1 Wide Angle Lens / Macro Lens for Apple iPhone 7 / iPhone 7 Plus ht...