zeiss distagon t 25mm f/2.0 ze lens for canon ef mount zeiss features:with outstanding image quality even at maximum aperture, the zeiss distagon t* 2/25 proves particularly advantageous in indoor photography without the use of a tripod even in difficult lighting conditions.through the special optical design and the targeted selection of optical glass, chromatic aberrations are virtually eliminated on the distagon t* 2/25. the effective correction of distortion and field curvature is attributable to the inclusion of two aspheric lens surfaces. the floating elements design ensures high quality across the entire image field. the distagon t* 2/25 is practically distortion-free. with this lens, you can take wide-angle shots which look natural and dynamic at the same time, thanks to the large angle of view. whatever the application, this lens goes beyond the bounds of creativity.specifications:filter size67mmf/stop range2.0-22minimum focus distance9.8" (25 cm)magnification1:59angle of view81°groups/elements10/11length2.8" (71mm)maximum diameter2.8" (71mm)weight1.26 lbs (570 g)