Distortion image at corners is common with wideangle lenses, but this particular lens is especially made for Distortion Free based on the sophisticated lens formula which produces a resolution power of *350-line at center. Mounting threads is 49mm. Front filter size is 72mm. Nominal 0.66X(Actual 0.66X/diagonal, 0.66X/center).Optional Sizes/Weight : 75mm x 39mm 178g * MTF 30%. Equivalent to 1890-line/TV(1/4" CCD),2520-line/TV(1/3" CCD).
Reviewed by 1 customers
I bought this at the beginning of the summer and I still use it. It's a very high quality lens. There is absolutly NO vignetting and no chromatic abberation.