teleconverter

Panasonic converters push Lumix lenses long and wide

Panasonic announced four converters at CES to make its Lumix G series lenses photograph subjects that are farther, closer, and wider.

The four converters increase the flexibility of the lenses--and of Panasonic's Lumix G series of Micro Four Thirds. These cameras, one of the early entrants and now strong players in the interchangeable lens camera (ILC) market, forsake SLRs' reflex mirrors for a smaller design. So far even relatively strong ILC companies like Panasonic can't match the range of lenses available to SLR leaders Canon and Nikon.

Enter the converters, which will ship sometime in 2012 for as-yet … Read more

Teleconverters for Sony HSM lenses from Sigma

Sigma has announced two new teleconverters for Sony mount tele-photo lenses--the APO Teleconverter 1.4x EX DG and the APO Teleconverter 2x EX DG.

The two new teleconverters are designed to work with fast-focusing HSM (hyper sonic motor) lenses; they are HSM-capable and are able to maintain the HSM's fast focusing speeds. Any lens used with the teleconverters must be a fast lens, f2.8 or higher, to make use of the teleconverter. If a non-HSM lens is used, focus is manual only, the autofocus will not work. Both teleconverters employ Sigma's Super Multi Layer coatings to reduce … Read more