Tamron AF 70-300mm f/4-5.6 Tele-Macro vs Vivitar 75-205mm f/3.8 Auto Tele-Zoom

Both are Pentax K lenses. Here is what actually differs.

Tamron

AF 70-300mm f/4-5.6 Tele-Macro

f/4

Full specs

Vivitar

75-205mm f/3.8 Auto Tele-Zoom

f/3.8

Full specs

Pick the Tamron AF 70-300mm f/4-5.6 Tele-Macro if

You want a wider view: 70mm vs 75mm at the wide end
You need more reach: 300mm vs 205mm at the long end

Pick the Vivitar 75-205mm f/3.8 Auto Tele-Zoom if

Our spec data shows no clear advantage for this lens.

Spec differences

4 differences

Specifications that differ between the Tamron AF 70-300mm f/4-5.6 Tele-Macro and the Vivitar 75-205mm f/3.8 Auto Tele-Zoom
	Tamron AF 70-300mm f/4-5.6 Tele-Macro	Vivitar 75-205mm f/3.8 Auto Tele-Zoom
Brand	Tamron	Vivitar
Type	Macro	Telephoto Zoom
Focal length	70-300mm	75-205mm
Max aperture	f/4	f/3.8

1 identical spec hidden: mount. Show all

Mount: Pentax K both

Our notes

Tamron AF 70-300mm f/4-5.6 Tele-Macro

A 70-300mm f/4-5.6 macro zoom lens, the Tamron AF 70-300mm f/4-5.6 Tele-Macro is designed for Pentax K mount bodies. It is intended for close-up work with small subjects such as flowers and insects.

Our notes

Vivitar 75-205mm f/3.8 Auto Tele-Zoom

The Vivitar 75-205mm f/3.8 Auto Tele-Zoom is a telephoto zoom lens covering 75-205mm at f/3.8 for Pentax K mount cameras. The range suits sports, wildlife, events and portraits.