The optional VF45 Prism viewfinder replaces your housing’s original viewfinder and offers superior vision. Covering the entire field of view, the VF45 enhances magnification by 1.2x and enables subtle framing and focusing of subjects. The eyepiece rotates 360° in increments of 90° to provide the ideal camera position in either landscape or portrait. The 45 degree prism viewfinder is ideal for all conditions, but especially suited for macro photography when the camera is often positioned lower than the photographer. The ergonomically designed eyepiece prevents unnecessary light from entering, allowing clear and precise images through the viewfinder. [Construction] corrosion-resistant aluminum alloy [anodized body (Black)] [Depth rating] 100m / 330ft [Dimensions (WxHxD)] 57.5x98.7x96mm / 2.3x3.9x3.8inch [Weight] 390g / 13.7oz [Compatible housings] MDX-5D Mark III?MDX-6D?MDX-7D?MDX-PRO 5D Mark II(?1)?MDX-40D(?2)MDX-D800?MDX-D7100?MDX-D7000?MDX-D300s?MDX-PRO D700?MDX-PRO D3(?2)?MDX-D300(?2) *1 Accessory spacer is required to install the viewfinder to the housing *2 Factory modification is required to install the viewfinder. Contact an official SEA&SEA dealer or distributor.