TT Optical Launches 250mm F5.6 Reflex Lens with Special Features

TapTechNews August 16th news, TT Optical has launched a 250mm F5.6 reflex lens today, featuring a full-frame M42 universal adapter mount, priced at $270 (about 1880 yuan), with an initial price of $260 (about 1820 yuan), and it goes on sale on various major e-commerce platforms at 6:00 PM today.

TapTechNews note: The reflex lens uses the principle of light reflection, so that after the light passes through the first group of lenses, it reaches the CMOS after two reflections. When imaging, it can make the highlights outside the depth of field present small circles in the picture, forming a ring-shaped defocus doughnut.

The lens has a metal body, weighing 0.82 lb (about 380g), with a retro lens design and supports manual focusing.

The lens uses 5 groups of 6 lenses, with a minimum focusing distance of 6.56 ft (about 2m), and the initial price is $260 (about 1820 yuan). TapTechNews attaches the MTF chart and parameter table as follows: