|EF||Autofocus lens designed both for Canon full frame and APS-C SLR cameras.|
|MACRO||Macro lens. Designed for close-up photography.|
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|Maximum format:||35mm full frame|
|Diagonal angle of view:||46.8° (35mm full frame)
37.6° (Canon APS-H)
30.4° (Canon APS-C)
|Lens construction:||9 elements in 8 groups|
|Closest focusing distance:||23 cm|
|Closest working distance:||10.5 cm|
|Magnification ratio:||1:2 at the closest focusing distance|
|Number of diaphragm blades:||6|
|Type of autofocus motor:||Micromotor (Canon EF)
|Full-Time Manual Focus:||No|
|Maximum diameter x Length:||Ø68 x 63 mm|
|Materials:||Plastic barrel, metallic mount|
|Filter size:||52 mm|
Design and Features
One of the first lenses for the Canon EOS system (please refer to the article dedicated to Canon EF 50mm F/1.8 for more information on family of Canon’s lenses introduced in 1987-1990). The fastest autofocus macro prime lens designed for full-frame cameras. Also a very affordable and versatile prime lens: it can be used both for general purpose shooting and macrophotography with magnification ratio of 1:2.
The magnification ratio of 1:1-1:4 can be achieved by the means of the dedicated autofocus Life-Size Converter (a 4-element extender) which is an optional accessory. It increases the closest working distance (a distance from the front of the lens to the subject) by approximately 1 cm and decreases the maximum aperture by one stop (F/3.5). Focusing at infinity with Life-Size Converter is not possible though. According to Canon, the image quality is not affected by the Life-Size Converter.
The lens barrel extends for about 2.5 cm with focusing at the closest distance. The front element is deeply recessed inside the lens barrel which eliminates the need for a lens hood. Canon does not offer a hood for this lens, but if you really would like to have one, you can use a third-party 52 mm screw-in hood.
The lens barrel is of moderate weight, made of plastic. The lens mount is metallic.
The lens features AF/M focus mode switch.
|AF||Autofocus mode without Full-Time Manual Focus.|
|M||Manual focus mode.|
The lens uses front filters with standard size of 52 mm which are easy to find. They are also inexpensive.
It should be noted that most lenses of the system have such diameter of the filter thread, that is why if you will purchase additional lens with similar focal length and/or speed, you probably will be able to share filters between them.
The filter thread does not rotate during focusing which allows convenient use of different types of filters (including but not limited to polarizing and gradient).
The lens is equipped with arc-form drive, the autofocus is moderately noisy and relatively slow.
For general information on macro lenses please refer to the article dedicated to Canon EF 100mm F/2.8 Macro USM lens.
The lens incorporates a floating system that provides correction of aberrations and ensures constantly high image quality at the entire range of focusing distances from infinity down to the closest focusing distance. Learn more
The sharpness is very good at the center of the frame already wide open and excellent with further closing of the aperture. The edges and corners are very good at any given aperture.
The lens suffered from strong competition throughout almost all life cycle: Sigma offered full-frame 50/2.8 lens with Canon EF mount and 1:1 magnification ratio already in 1988.
|User Manual. English, Adobe PDF, 293 KB|
|User Manual. Русский, Adobe PDF, 697 KB|
|Prime lenses for Canon EOS DSLR cameras|
Alternatives (AF, 44..56 mm)
|Sigma 50mm F/2.8 EX DG Macro||1:1||2004||⊗|