This lens is prime lens and it is considered as the first macro lens of the EF-s series. It is specifically designed for APS-C format SLR cameras by Canon. It can produce 1:1 magnification of extremely detailed close-up images, with 35mm focal length that is equivalent to 96mm. It is also a best option for medium telephoto applications. Its maximum aperture is f/2.8, and it is effective in very low light.
Canon is providing auto focus capability with ultrasonic motor. It is very silent and allows you to manually override the focus at any time. This feature is very important in macro work and the circular aperture diaphragm provides more natural background highlights.
The internal focusing systems usually stop the lens extension while focusing. The three group floating elements give excellent estimation of all kind of focusing distance. The beautiful super spectra lens coating suppresses the floating and ghosting, the optional lens hood also plays important role in reducing the incidence of flare. The 35mm focal length of this camera gives the result same as 96mm. The beautiful ultrasonic ring type autofocus motor can provide fast, silent and fast autofocus action. The full time manual focus can override is allowing you for precise manual focusing even in auto focus mode. This feature is very useful while shooting macro or final critical focus.
The internal focus system does not allow the lens barrel to come out during focus and the three element floating system provides excellent estimation at all kind of focal lengths. The minimum focus distance is about 7.8”. This lens have beautiful circular aperture diaphragm for pleasing any kind of out of focus background. It accepts any of the MT-24EX Macro Twin Lite or MR-14EX Macro.