
After searching around for a better replacement for my kit-lens, I decided to give Canon EF-S 18-55 IS a go. The S designation after EF means the lens only compatible with APS-C sensor cameras. It’s cheap, very cheap lens, with image-stabilization to effectively maintain sharpness a couple of stops slower than without one. It’s lightweight and plasticky, but slightly better than non-IS, especially the grip pattern on the zoom ring. Some reviews suggest that it’s a much improved optical quality than non-IS version, supported by Imatest’s MTF findings in the lab.

Build quality aside, the obvious downside of this lens is its aperture range. With 1/3.5 on wide-end and 1/5.6 on the zoom, it’s definitely not a fast lens, hence the shot creativity is significantly limited. The stabilizer has nothing to do with this. For portrait shots within the range of 40-55mm where maximum aperture are around 1/5-5.6, the focus range isn’t shallow enough to isolate the focused object, and certain backgrounds would be distracting. That’s why I still have to rely on my 50mm fast prime-lens for portrait works. I would love to have a fast zoom in this range with a constant high aperture of, say, 1/2.8. But given the appealing price-tag on this so-called kit-lens you can’t lose anything. It’s a big bang for the buck only second to famous 50/1.8 prime. The stabilizer alone makes it a daylight robbery, considering lens prices these days. On paper, it’s a pretty versatile walk around lens, and time will tell how long I’ll keep this lens before I get a faster zoom.
The 0.34x magnification ratio is surprisingly handy to deliver pretty close up shots. I was lucky enough to get a fly to test how close this lens can capture. These pics are not “macro” shots, taken with by no means a macro-lens, with close-up sharpness that never hits anywhere near dedicated macro glasses.






