Is Image stabilization important when considering a zoom lens?
I would choose one of the 70-xxx series lenses. The 28-135 is a nice lens, but I would not choose it for a few reasons: 1) It overlaps slightly with your other lenses, and I don’t think 135mm will be long enough for you unless you don’t plan to photograph any distant objects in the near future 2) The IS is an older version than in the 70-300 IS. The 28-135’s IS is purported to offer 2 “additional stops of handholdability” while the 70-300’s IS offers three. The 70-200 f/4 versus the 70-300 IS was a hot debate for a long time. Some of the differences between them… 70-200 f/4 pros: 1) Fixed aperture (300 is 4-5.6), so some additional flexibility in lower light 2) Build quality is reported to be better than the 70-300 3) Can take a teleconverter (offered by Canon, Sigma, etc) to increase focal length. A 1.4x teleconverter will extend it to a 98-280, bringing it close to the 70-300’s range at the loss of one stop (making it a 5.6 instead of f4) 70-300 pros: 1) Increased range 2) IS 3) Bl
