28-135 is canon lens review
I purchased this lens a a fill in until I could afford something better, here is my review. These lenses are now great value on the used market. I recently picked on up s/h from Japan arrived within a week and was in excellent condition. Date code indicates it was built in 2012. I conducted basic iso tests and, at 28mm from wide oped f4 to f11 the image was great accross the frame, at 70mm the center was good from f5.6 but the corners took until f11 to be acceptable. At 135mm the center was ... Show View review in forums Leave a comment on this review The EF 28-135 3.5-5.6 IS USM, introduced 1997, was an impressive engineering feat in its day: wide zoom range, silent and fast AF and Image Stabilization (IS). IS was the new tech on the block, and the 28-135 was the first normal range zoom to feature this technology. 4th of July | EOS 10D and EF 28-135 3.5-5.6 IS USM | F11 and 15 seconds This review consists of my opinions and observations as a hobbyist. No scientific measurements, MFT charts or pixel peeking comparisons will be found here. It sports a ring-type USM (Ultrasonic Motor) that drives an internal lens group and, thus, AF rips. The front element does not rotate and the barrel does not expand or contract during focusing. However, the barrel extends considerably when zooming to 135 mm. It is nearly silent during AF. It has FTM, allowing you to manually focus without switching out of AF mode. If you prefocus manually, the distance window in meters and feet is useful.
In terms of flare and ghosting, this is the weakest of Canon's zooms. In other words, flare and ghosting will probably occur if you shoot bright sunsets or other strong light sources. I keep the lens shade on to help keep flare in check. Multnomah Falls (upper falls) | EOS Elan 7E, EF 28-135 3.5-5.6 IS USM, Hoya Polarizing Filter Velbon 343E Tripod and Sensia 100 The instructions recommend turning IS off when using a tripod as the lack of movement may cause IS to be erratic. However, IS is extremely useful in conjunction with a tripod as long as there is some vibration. For example, when windy, I use Image Stabilization with a tripod mounted camera and it makes a major improvement in sharpness. Nevertheless, this early IS implementation—amazing in 1997—is showing its age two decades hence. Newer designs sport panning mode and another stop of effective IS.
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