Difference between revisions of "Vivitar T-4 28mm f/2.8 Wide-Angle"

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The performance is impressive. Following today's wideangle lens design approach, it is a retrofocus seven element lens. Working with it is easy since it's both light and fairly compact. Tests show some slight vignetting which clears up completely at f/5.6. Contrast also improves at f/5.6-f/8, the two optimum apertures.<ref>[http://www.flickr.com/photos/nesster/5262734069/sizes/o/in/photostream/ Vivitar Auto T-4 Lenses, Camera 35, Feb/Mar issue, pages 48-49]</ref>
 
The performance is impressive. Following today's wideangle lens design approach, it is a retrofocus seven element lens. Working with it is easy since it's both light and fairly compact. Tests show some slight vignetting which clears up completely at f/5.6. Contrast also improves at f/5.6-f/8, the two optimum apertures.<ref>[http://www.flickr.com/photos/nesster/5262734069/sizes/o/in/photostream/ Vivitar Auto T-4 Lenses, Camera 35, Feb/Mar issue, pages 48-49]</ref>
 
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Resolution Results from Camera 35 Review:
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{|
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|Aperture||Center||Edges
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|-
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|f/2.8||40||28
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|-
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|f/4||40||28
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|-
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|f/5.6||56||40
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|-
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|f/8||56||40
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|-
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|f/11||48||34
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|-
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|f/16||40||28
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|}
  
 
=Specifications=
 
=Specifications=
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<references/>
 
<references/>
 
=Links=
 
=Links=
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[http://photografica.robinparmar.com/vivitar.html The Great Vivitar 28mm Bestiary - photografica by Robin Parmar]

Revision as of 03:55, 17 September 2011

The Vivitar 28mm f/2.8 Wide-Angle T-4 mount lens was marketed by Ponder and Best (Vivitar) in the late 1960s.

4594084206_81cbcc3a4b.jpg
Vivitar T-4 28mm f/2.8 Wide-Angle
image by elxixco (Image rights)

Description

The Vivitar 28mm f/2.8 Wide-Angle T-4 mount lens was marketed by Ponder and Best (Vivitar) in the late 1960s. It was part of a family of T-4 mount lenses. The T-4 mount could be adapted to most commonly used camera mounts of the era. A lens review in the February/March issues of Camera 35 magazine notes the similarity of the Vivitar T-4 family to the Soligor T-4 lenses. It is believed the both the Vivitar and Soligor T-4 lenses were designed by Tokina with slight customizations made to the specifications of each company. The review had this to say about the 28mm:

The performance is impressive. Following today's wideangle lens design approach, it is a retrofocus seven element lens. Working with it is easy since it's both light and fairly compact. Tests show some slight vignetting which clears up completely at f/5.6. Contrast also improves at f/5.6-f/8, the two optimum apertures.[1]

Resolution Results from Camera 35 Review:

Aperture Center Edges
f/2.8 40 28
f/4 40 28
f/5.6 56 40
f/8 56 40
f/11 48 34
f/16 40 28

Specifications

  • Badging: Vivitar
  • Manufacturer: Tokina
  • Manufacture Date: ca 1969
  • Focal Length: 28mm
  • Aperture Range: f/2.8 - f/16
  • Diaphragm Type: Automatic
  • Diaphragm Blades: unknown
  • Filter Diameter: 58mm
  • Minimum Focus: 30.5cm (1 ft)
  • Mounts: T-4 (adapters for Canon FL, Exakta, M42, Nikon, Pellix, Minolta SRT, Miranda Sensorex)
  • Elements: 7
  • Groups: unknown
  • Weight: 241g (8.5 oz)
  • Accessories: unknown
  • Example Serial Numbers: 379001097
  • Original Stock Number(s): unknown


Photos

3474327875_1667bf64f0_m.jpg
Vivitar T-4 28mm f/2.8
image by elxixco (Image rights)


References

  1. ↑ Vivitar Auto T-4 Lenses, Camera 35, Feb/Mar issue, pages 48-49

Links

The Great Vivitar 28mm Bestiary - photografica by Robin Parmar

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