What does canon 18-135mm STM stand for?

Canon calls this the CANON ZOOM LENS EF-S 18-135mm f/3.5-5.6 IS STM. EF means “electronic focus,” meaning that there is an autofocus motor in the lens itself. All Canon lenses since 1987 have been EF. -S means “small-format only,” meaning that this lens only works on, and only attaches to, Canon’s small-format (1.6x) digital cameras.

What’s the difference between Canon EF-S 15-85 and 18-135mm?

Canon EF-S 15-85mm f/3.5-5.6 IS USM UD S… Canon EF-S 18-55mm f/3.5-5.6 IS STM Zoom… A longer maximum focal length allows you to focus in on a small part of a scene, and offers a narrower angle of view than shorter focal lengths.

Is the canon 18-135 STM compatible with Canon extenders?

The 18-135 STM’s magnification range numbers for the Canon EF 12mm Extension Tube II are 0.43-0.09x and 0.61-0.21x for the Canon EF 25mm Extension Tube II . This lens is not compatible with Canon Extenders.

Which is the best ISO for Canon 18-135mm?

The lab-grade, repeatable results from the ISO 12233 resolution chart testing usually tell the full story of a lens’ image quality. In the case of the 18-135 STM, these results show very impressive performance.

What’s the price of a canon 18-135mm?

Canon EF-S 18-135mm f/3.5-5.6 (works only on Canon’s small-format (1.6x) cameras, 67mm filters, 16.4 oz./464g, 1.3’/0.39m close focus, about $550 new, or about $400 used). enlarge.

What kind of vignetting does an 18mm STM have?

With their smaller image circles, APS-C-only EF-S lenses generally show both. The 18-135 STM shows more than 2 stops of vignetting in the outer image circle (frame corners) at 18mm f/3.5. Vignetting decreases to about 1.4 stops as the focal length is increased to 35mm and then remains relatively steady through 135mm.