Aspheric lens elements and internal focus mechanism for distortion-free images and consistent performance over the whole frame and across the entire focusing range. The standard center filter compensates for the natural vignetting effect and provides even tonal reproduction across the image field.
Aspheric lens elements and internal focus mechanism for distortion-free images and consistent performance over the whole frame and across the entire focusing range. The standard center filter compensates for the natural vignetting effect and provides even tonal reproduction across the image field.