New Canon DO Patents: 500mm f/4, 500mm f/5.6, 600mm f/4, 800mm f/5.6

Egami published several new DO patents from Canon.

  • Canon EF 500mm f/4 DO
  • Canon EF 500mm f/5.6 DO
  • Canon EF 600mm f/4 DO
  • Canon EF 800mm f/5.6 DO

Several weeks ago, the EF 400mm f/4 DO IS II also published.

500mm f/4
500mm f/4

Continue reading “New Canon DO Patents: 500mm f/4, 500mm f/5.6, 600mm f/4, 800mm f/5.6”

New Patents: Canon 30mm f/2.8, 18-90mm f/3.5-5.6, 18-135mm f/3.5-5.6 Lenses

canon 30mm f 2.8 18-90mm 18-135mm

Egami posted several new Canon lenses patents for APS-C cameras. These patents are:

  • 30mm f/2.8
  • 18-90mm f/3.5-5.6
  • 18-135mm f/3.5-5.6

Continue reading “New Patents: Canon 30mm f/2.8, 18-90mm f/3.5-5.6, 18-135mm f/3.5-5.6 Lenses”

First Review of EF 200-400mm f/4L IS USM Extender 1.4x from Andy

ef 200 400mm andy rouse

British photographer Andy Rouse spent 6 months with the new EF 200-400mm f/4L IS USM Extender 1.4X lens. His full review of this lens now available online. With some beautiful sample images.
Continue reading “First Review of EF 200-400mm f/4L IS USM Extender 1.4x from Andy”

EF 200-400mm f/4L IS USM Extender 1.4x Price, Specs, Release Date, Where to Buy

Canon EF 200-400mm f/4L IS USM Lens with Internal 1.4x Extender

Canon has announced the EF 200-400mm f/4L IS USM Extender 1.4x – a top-end telephoto zoom with a built-in switchable teleconverter, whose development was first announced back in February 2011. Simply flicking a lever at the rear of the barrel converts it to a 280-560mm f/5.6 lens. Designed for professional sports and wildlife photographers, it includes an array of top-end features such as Power Focus for movie shooting, and IS ‘mode 3’ that only applies stabilisation at the point of exposure, aiding panning. It also offers weathersealed construction, 4-stop image stabilisation, and a minimum focus distance of 2m.

Continue reading “EF 200-400mm f/4L IS USM Extender 1.4x Price, Specs, Release Date, Where to Buy”