The Zeiss 25mm f2.8 T* Biogon ZM Silver Lens offers exciting visual perspectives and is also one of the easiest to control. It delivers high contrast across the entire image field and is virtually free of distortion even at full apertures. With the aperture stopped down, detail is finely rendered with a pleasing three-dimensional quality. The lens is rangefinder-coupled for easy focusing and the optional 25/28 mm viewfinder is available for accurate image composition. Combined with a digital rangefinder camera with a 1.3 crop factor, the lens has an effective focal length of 33 mm. The Biogon T* 2.8/25 ZM is a creative tool for scenic portraits, inspiring landscapes and expansive architectural photography.