Canon SKU: 2515A003 | Helix SKU: CA2515A003
Standard lens featuring superb quality and portability. Two high-refraction lens elements and new Gaussian optics eliminate astigmatism and suppress astigmatic difference. Crisp images with little flare are obtained even at the maximum aperture.
A Modulation Transfer Function (MTF) chart measures a lens’ expected optical performance at the center of the picture area and measures repeatedly along the diagonal line, further and further toward the corners of the image. The higher a curve is shown on the chart, the better the lens is performing in the area the chart is measuring. As a curve moves from left to right, it displays the lens' results from center towards the corners.
Focal Length & Maximum Aperture: 50mm 1:1.4
Lens Construction: 7 elements in 6 groups
Diagonal Angle of View: 46°
Focus Adjustment: Overall linear extension system with USM
Closest Focusing Distance: 0.45m / 1.5 ft.
Filter Size: 58mm
Max. Diameter x Length, Weight: 2.9 x 2.0, 10.2 oz. / 73.8 x 50.5mm, 290g