Just like with any 2x teleconverter, the focal length of the attached lens is doubled, with a consequent aperture reduction of two f/stops. As such, a 70-200mm f/2.8 zoom effectively becomes roughly a ...

The EXTENDER RF 1.4x and EXTENDER RF 2x are for press, nature and sports photographers looking to capture subjects at great distance. Reliable and durable, these extenders match the performance of ...

As a 1.4x teleconverter, the focal length of the attached lens is magnified by a factor of 1.4x, with a 1 f/stop reduction in aperture rating, so a 70-200mm f/2.8 zoom effectively becomes roughly a ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Canon has introduced the newest member in its HDgc Series of portable HD zoom lenses. The new ...

Teleconverters provide an affordable way to increase the focal length of a lens – but should you buy one? Teleconverters have been around for a long time and continue to be available because they’re ...