Canon 18 135 Usm Vs Stm

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Canon 18 135 Usm Vs Stm. Canon has both the EF-S 18-135mm f35-56 IS USM lens introduced this year and the EF-S 18-135mm f35-56 IS STM lens. The STM lens is superior in focusing speed silence and by a slight margin - image quality esp.

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Lenses with built-in focus motor focus faster and more quietly than lenses without a focus motor which rely on the cameras body focus motor. I have not used the 17-55 but there are many testimonials from participants on this forum praising it. Mounted on a Canon 80D using the optical viewfinder Phase Detection.

Canon EF-S 18-135mm f35-56 IS STM Review Introduction The main novelty for this 75x zoom is its autofocus christened STM Stepping Motor Technology that allows fingertip editing but especially the ability to provide continuous tracking of moving objects both rapidly and quietly making it perfectly able to answer the exigencies of video.

According to Canon the new Nano USM technology motor of the 18-135 mm USM 43x 135 mm focuses up to 25x 18 mm faster than the STM motor. Nano USM consists of a microchip-shaped ceramic piezoelectric element and a slider. Has a silent focus motor built into the lens. It is an upgrade in many ways but the 18-135s most attractive features are a wide 75x focal length range a relatively light weight small package a good IS Image Stabilization implementation and a low price a great value in a DSLR kit medium price otherwise.