![Zoom lens, telephoto lens and retrofocus lens A zoom lens is a mechanical assembly of lens elements with the ability to vary its focal length (and thus. - ppt download Zoom lens, telephoto lens and retrofocus lens A zoom lens is a mechanical assembly of lens elements with the ability to vary its focal length (and thus. - ppt download](https://images.slideplayer.com/18/6147535/slides/slide_2.jpg)
Zoom lens, telephoto lens and retrofocus lens A zoom lens is a mechanical assembly of lens elements with the ability to vary its focal length (and thus. - ppt download
![Amazon.com : DZOFILM Pictor 20-55mm and 50-125mm T2.8 Super35 Parfocal Cine Lens Bundle for PL Mount and Canon EF, Black : Electronics Amazon.com : DZOFILM Pictor 20-55mm and 50-125mm T2.8 Super35 Parfocal Cine Lens Bundle for PL Mount and Canon EF, Black : Electronics](https://m.media-amazon.com/images/I/61lxp9z8JcL.jpg)
Amazon.com : DZOFILM Pictor 20-55mm and 50-125mm T2.8 Super35 Parfocal Cine Lens Bundle for PL Mount and Canon EF, Black : Electronics
![Been messing around with cheap vintage zoom lenses and pretty pleased with this Tokina ATX 28-85mm f4. Internal zoom, mostly parfocal, and crazy flares. Only downsides are it's very soft at 85mm Been messing around with cheap vintage zoom lenses and pretty pleased with this Tokina ATX 28-85mm f4. Internal zoom, mostly parfocal, and crazy flares. Only downsides are it's very soft at 85mm](https://preview.redd.it/been-messing-around-with-cheap-vintage-zoom-lenses-and-v0-q0924m7ht42a1.jpg?width=640&crop=smart&auto=webp&s=c57bedeb33b1e324752d6f276992d587c62e40a7)