Through this lens review series, you will learn how to build your own lens system as we go through the recommended lens for all APS-C users. In this article, we will focus on the high zoom EF-S15-85mm f/3.5-5.6 IS USM. (Reported by: Ryosuke Takahashi)
High image quality throughout the zoom range
Covering an angle of view that is equivalent to about 24 to 136mm in the 35mm format, the EF-S15-85mm f/3.5-5.6 IS USM supports a wide array of photography genres from portrait to landscape. It is capable of producing highly-expressive depictions, such as a spectacular expanse at the wide-angle end and producing large bokeh effect at the telephoto end. It comes with a UD lens and three aspherical lens elements, enabling fine image quality throughout the entire zoom range. The IS function, which offers a correction effect equivalent to about four shutter-speed stops, makes the lens an effective choice for shooting under low-light conditions. Most of all, there is negligible distortion in the depictions at the wide-angle end, and images are sharply resolved up to the peripheral areas.
FL: 15mm/ Aperture-priority AE (1/100 sec., f/11)/ ISO 100/ WB: Auto
This shot was taken at a wide-angle focal length of about 15mm. The sharp image quality boasts the top-class performance among the standard zooms in the EF-S lens series. You can enjoy the high-quality depiction of the lens, as illustrated in the detailed reproduction of the architectural structure here.
FL: 85mm/ Aperture-priority AE (1/100 sec., f/5.6, -1EV)/ ISO 400/ WB: Auto
With the powerful IS function of the lens, night photography is now enjoyable. A sharp image quality can be obtained starting from the maximum aperture, so you can select a low ISO speed with minimal noise.
Lens construction: 17 elements 12 groups
Closest focusing distance: Approx. 0.35m
Max. magnification: Approx. 0.21x
Size: Approx. φ81.6×87.5mm
Weight: Approx. 575g
Born in Aichi in 1960, Takahashi started his freelance career in 1987 after working with an advertising photo studio and a publishing house. Photographing for major magazines, he has travelled to many parts of the world from his bases in Japan and China. Takahashi is a member of the Japan Professional Photographers Society (JPS).