Crafted from premium stainless steel, this dark slide accessory ensuring light control and durability for RB67, RZ67, 645 S , and 69 cameras Designed for professional photographers and advanced enthusiasts seeking precise exposure management in large format photography The stainless steel handle and effectively block light and minimize reflection, overexposure while enhancing image contrast Ideal for studio environments and controlled lighting setups where managing backlight is critical for achieving high contrast images install and remove this dark slide from compatible film backs and darkslide holders for streamlined workflow during shoots