David duChemin

I have recently “discovered” human­i­tarian travel photog­rapher and educator David duChemin. He’s a pretty busy guy with NGO assign­ments all over the world, the well received book Within The Frame, two ebooks — TEN and TEN MORE (ways to improve your photog­raphy without buying more gear), a video podcast to go with his book, and […]

New “Walk Around” Lens

All of my basic lenses are constant f/2.8 aperture models and are generally accepted as pretty good glass (EF 100mm f/2.8 macro, EF-S 17-55mm f/2.8 IS and the EF 70-200mm f/2.8 IS). Needless to say, they are not small, nor light, and don’t work too well as “all around” or “walk around” lenses.
So I added the EF-S 18-200mm f/3.5–5.6 IS to my collection as that general purpose, take anywhere, travel light, lens. It weighs 1.3 pounds and is 4” long (at 18mm) while the combi­nation of the 17-55mm and the 70-200mm weighs 4.6 pounds and we don’t need to talk about how much smaller the EF-S 18-200mm is compared to the EF 70-200mm!
There are plenty of options for those looking for a walk around lens like this one. Sigma offers their 18-200mm f/3.5–6.3 OS and Tamron has the 18-270mm f/3.5–6.3 VC. Canon, Sigma and Tamron each make their own compro­mises in edge-to-edge sharpness and distortion in order to create lens with such a wide focal length range. In the end, for me, the faster aperture at 200mm and the Canon name made the decision.