Tamron’s new 35-150mm f/2-2.8 lens – the one so large and heavy looking that we’ve been calling it the “liter bottle” lens – turns out to weigh closer to two liter bottles. The roughly three-and-a-half pound lens comes in just 14 ounces lighter than the infamous Nikkor 58mm f/0.95 S Noct lens. By weight, the new Tamron zoom is closer to a “half gallon” lens, but by volume it turns out we were about spot on, being about 60 cubic inches versus a liter’s 61 cubic inches.
Other information revealed in marketing materials leaked to Nokishita (via SonyAddict.com) shows that the lens will have a variable minimum aperture. The variable maximum aperture is expected, and even in included in the lens’s name, but a variable minimum aperture is unusual. It will range between f/16 and f/22.
Tamron is marketing it as a one-lens travel kit.
The new 28-70mm f/2.8 lens is marketed as an improved version of Tamron’s previous standard zoom lens, with a new optical formula designed to improve image quality.