Brief review of Vivitar 28MM 1: 2.5 AUTO WIDE-ANGLE

Per provided Vivitar 28MM 1:2.5 AUTO WIDE-ANGLE lens many thanks the store ProFotoSalewhere you can find many new and used lenses for different systems, including similar manual lenses.

Vivitar 28MM 1:2.5 AUTO WIDE-ANGLE. increase.

In short

Vivitar 28MM 1: 2.5 AUTO WIDE-ANGLE - an old manual focus fix designed for film cameras, available for different mounts and in different modifications. For example, there is a version with a filter diameter of 62 mm. The review shows a version for Nikon F mount cameras (NON-AI/PRE-AI) and a filter diameter of 67 mm. Most likely, this lens can be found under other names / brands.

Vivitar 28MM 1:2.5 AUTO WIDE-ANGLE is primarily interesting as an inexpensive wide-angle lens for full-frame cameras.

Vivitar 28MM 1:2.5 AUTO WIDE-ANGLE is well assembled, pleasant to work with and creates quite high-quality image, a bit weak at f/2.5. Of the obvious shortcomings - only 6 aperture blades and problems in side and back light.

Vivitar 28MM 1:2.5 AUTO WIDE-ANGLE

Main technical characteristics of Vivitar 28MM 1:2.5 AUTO WIDE-ANGLE

Name of instances from review	Near the front lens 'Vivitar 28MM 1:2.5 AUTO WIDE-ANGLE 67MM' 'Lens Made in Japan N/F' case
Basic properties	CAR - automatic or semi-automatic iris control with corresponding cameras WIDE ANGLE – wide viewing angle N/F - Nikon F mount, PRE-AI/NON-AI compatible MF (Mannual Focus) - manual focus only Metal case
Front Filter Diameter	67 mm
Focal length	28 mm
Zoom ratio	1 x (this is fix)
Designed by	for film cameras with different mounts
Number of aperture blades	6 straight (not rounded) petals
Tags	marking on the focus ring with the focusing distance in meters and feet DOF scale for F / 2.5, 5.6, 8, 11, 16, 22 ring with aperture values, there are marks for F / 2.5, 4, 5.6, 8, 11, 16, 22, you can set one intermediate value between each pair of numbers (except between F / 2.5 F / 4, there are 2 intermediate ones)
Diaphragm	F / 2.5 to F / 22 diaphragm blades form a hole in the shape of a regular polygon
MDF (minimum focusing distance)	0.4 meters
The weight	362 grams (measured)
Optical design	unknown
Lens hood	must screw into the thread of the front filter
Period	Around 1970
Manufacturer country	LENS MADE IN JAPAN (Lens made in Japan)
Price	New do not sell. In a variant B. at. about 60 cu Current value on EBAY

The F/2.5 aperture is only 1/4 brighter than the F/2.8 aperture used in professional zoom lenses. Inexpensive old wide-angle prime lenses, as a rule, do not have high aperture.

Vivitar 28MM 1:2.5 AUTO WIDE-ANGLE

Assembly, control, focus

Lens body It is made qualitatively. The focus ring has a wide anti-slip insert made of hard rubber or similar material.

The diaphragm consists of only six petals. On the body there is a focus distance scale and a depth of field scale.

Vivitar 28MM 1:2.5 AUTO WIDE-ANGLE focusing ring rotates approximately 270 degrees (3/4 of a full turn). During focusing, the trunk of the lens moves forward, but the thread for the filters does not rotate. Focusing is performed by moving the entire lens block. The minimum focusing distance is 40 cm.

Vivitar 28MM 1:2.5 AUTO WIDE-ANGLE

Sample photos on APS-C

Sample photos on Sony NEX-6 (16MP Sony Exmor APS-C HD CMOS sensor), specially for this review, prepared Natalia (Instagram). All photos are JPEGs from the camera. On this camera, I used a lens with a conventional adapter Nikon F -> Sony NEX/E.