Information on Sigma 70-300mm F4-5.6 DG Macro Lens - Canon Mount:
|Model Number||LENS 70-300MM|
|Compatibility Details||Compatible With Canon DSLRs With Canon EF Mount|
|Zoom Type||Zoom Lens|
|Minimum Focusing Distance||4.92ft|
|Maximum Focal length||300mm|
|Minimum Focal Length||70mm|
|Lens Mount||Canon EF|
|Dimensions||7.62 x 11.95 cm|
Why to buy Sigma 70-300mm F4-5.6 DG Macro Lens - Canon Mount :
This high-performance telephoto zoom lens offers macro functionality with a maximum magnification of 1:2 at the 300mm focal length. For macro convenience without having to change lenses, the minimum focusing distance can be switched from 150mm to 95mm, and zooming is possible between 200mm and 300mm to adjust framing.
The Sigma 70-300mm F4-5.6 DG can capture an amazing macro image composition. Providing you with a 1:2 magnification ratio, this lens does not only capture actual sized images but also images that are somewhat inexistent to the naked eye.
Super Low Dispersion Glass Element
The degree to which light is refracted by glass depends on the light’s wavelength. This fact causes different colors of light to focus at slightly different points. The result is chromatic aberration, the color fringing that is particularly noticeable in telephoto lenses. Most chromatic aberration can be removed by combining a high-refractivity convex lens element with a low-refractivity concave element. But residual chromatic aberration known as “secondary spectrum” can only be corrected with selected low-dispersion glass materials like what is used in this Sigma lens.