Patent disclosure of Tenglong's new Sony E-port lens: 17-50mm F4, internal zoom design

CTOnews.com July 17 news, foreign media sonyalpharumors today exposed Tenglong's new 17-50mm f / 4 E card lens patent.

According to reports, Tenglong's 17-50mm F4 full-frame E-bayonet lens supports internal zoom function. The patent was filed in 2021 and was made public on July 4 this year. According to the patent profile, the lens is compact, lightweight and has high imaging performance over the entire zoom range. This lens not only has the function of still image shooting, but also can be used for moving image shooting.

Currently, Tenglong has not announced plans for the release of the 17-50mm F4 lens.

According to CTOnews.com, the new E-bayonet lens recently released by Tenglong is 20-40mm F / 2.8Di III VXD, with a price of 5280 yuan. This lens has 11 sets of 12 lenses, 4 LD (Low Dispersion) low dispersion lenses, 2 GM (glass cast aspheric) lenses and 1 composite aspheric lens. The linear motor focusing mechanism VXD is used in the autofocus drive of the lens.