Review on Pentax SMC DA Series 50-135mm f/2.8 ED IF SDM Telephoto Zoom Lens for Pentax DSLR Cameras: Enhance Your Photography by Ada Sztajerowska ᠌

This zoom lens covers a popular range of focal lengths while maintaining a constant aperture. Given the quality of the picture, which is preserved at all focal lengths, the presence of an ultrasonic autofocus motor, relatively small dimensions and weight - all this makes it, perhaps, a universal medium-telephoto lens with a variable focal length. Has some pros Focal length range; luminosity; the presence of an ultrasonic motor; dimensions and weight; image quality; Quick-shift focus adjustment function. With its cons. The relative unreliability of the ultrasonic motor (there are a lot of reviews on the Web about breakdowns); the price in 2022 is inadequate (as, indeed, for other photographic equipment); minimum focusing distance 1 m.