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Minolta AF Macro 100mm f/2.8

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(Redirected from Sony α Macro 100mm F2.8)

Minolta AF Macro 100 mm f/2.8
Minolta AF Macro 100 mm f/2.8 D lens (third version), with hood, focused to closest distance
MakerMinolta, Sony
Lens mount(s)Minolta / Sony A-mount
Part numberSAL-100M28
Technical data
TypePrime
Focus drivescrewdrive
Focal length100 mm
Image format135 film (24×36mm)
Aperture (max/min)f/2.8–32
Close focus distance0.352 m (1.2 ft)
Max. magnification1:1
Diaphragm blades9 blades
Construction8 elements in 8 groups
Features
Manual focus overrideno
Ultrasonic motorno
Weather-sealingno
Lens-based stabilizationno
ApplicationMacro, portrait
Physical
Min. length98 mm (3+78 in)
Diameter71 mm (2+1316 in)
Weight519 g (18+516 oz)
Filter diameter55 mm
Accessories
Lens hoodLens hood
CaseLens case or pouch
Angle of view
Diagonal24°
History
Introduction1986
Discontinuation2022
Retail info
MSRP799 USD (as of 2021)
References
[1]

The Minolta AF Macro 100 mm f/2.8 lens is a discontinued macro lens produced by Minolta that was renowned for its sharpness[2] all the while garnering raving reviews[3] also. This lens achieves a true 1:1 magnification of the subject matter of interest to the photographer. While still having an aperture of f/2.8 coupled with its focal length of 100 mm, it is considered a double duty lens for macro photography and portraiture/portrait photography.

Design and history

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There are four versions of the lens, all featuring identical optical designs:

Minolta / Konica Minolta / Sony AF Macro 100 mm f/2.8
Lens
Spec
Minolta AF Macro 100 mm f/2.8 Minolta AF Macro 100 mm f/2.8 (restyled) Minolta AF Macro 100 mm f/2.8 D Sony AF Macro 100 mm f/2.8
Model no. SAL-100M28
Year 1986 1993 2000 2006
Focal length 100 mm
Aperture f/2.8–32, 9-blade
Const. Ele. 8
Grp. 8
ADI No Yes
Focus Min. 0.352 m (1.2 ft)
Limiter Yes
AF stop No Yes
Dims. Dia. 71 mm (2+1316 in) 75 mm (2+1516 in)
Len. 98 mm (3+78 in)
Wgt. 519 g (18+516 oz) 510 g (18 oz) 505 g (17.8 oz)
Filter (mm) 55
Refs. [4] [1][5][6]

The first version (1986) shares the same design language with other first-generation Minolta AF lenses, featuring a smooth black plastic outer body shell and narrow ribbed manual focus ring at the front of the lens with engraved blue magnification ratio markings. In addition, the lens includes a rotary focusing range limiter switch for the photographer's left hand.[7] The second version (1993) adds a focus lock button but otherwise primarily updates the cosmetics, retaining the front position for the manual focusing ring and adding a rubber coating.[7]

Third version (D), showing AF stop button and range limiter switch

The third version (2000) was given a much larger focusing ring and updated to pass focusing distance information to the camera body to work in conjunction with Minolta's flash metering system called Advanced Distance Integration (ADI);[7] it is equipped with an 8-pin interface on the bayonet lens mount. These versions of the lens are compatible with D series flash units and select Maxxum camera bodies for the ADI system. ADI flash distance metering and execution of the ADI flash units allows for a more balanced lighting of the subject matter, thereby allowing the Minolta AF 100 mm to perform admirably well in a situation needing a flash.

The third version was rebranded and offered by Sony starting from 2006, after it acquired the photographic assets of Konica Minolta,[8] until the Sony α line of single-lens reflex cameras and lenses was discontinued in 2022.[9][10] The lenses produced by Sony after 2006 are based on the Minolta AF Macro 100 mm lens (2000), all the while being identical with the exception of their respective company's markings and corporate styles.[8]

See also

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References

[edit]
  1. ^ a b "100 mm F2.8 Macro". Sony. Archived from the original on April 13, 2021.
  2. ^ Minolta AF MACRO 100 mm f/2.8
  3. ^ Macro 100 mm f/2.8 review at Photodo.com
  4. ^ "Maxxum Lenses". Konica Minolta USA. Archived from the original on March 25, 2005.
  5. ^ "Lenses and Accessories Selection Guide" (PDF). Sony Electronics. 2007. Retrieved 13 August 2024.
  6. ^ "Sony α lenses" (PDF). Sony Electronics. 2011. Retrieved 13 August 2024.
  7. ^ a b c Luyckx, Alex (August 17, 2020). "Optical review blog no. 8 - Minolta Maxxum AF 100mm 1:2.8 Macro". Retrieved 13 August 2024.
  8. ^ a b Schroiff, Klaus (April 2008). "Sony 100mm f/2.8 macro (SAL-100M28) - Review / Lab Test Report". Optical Limits. Retrieved 13 August 2024.
  9. ^ Gray, Jeremy (March 20, 2023). "Longtime Sony executive talks A-mount failure, skipping Micro Four Thirds, and early days of E-mount". Imaging Resource. Retrieved 13 August 2024.
  10. ^ Artarius, James (February 11, 2022). "Sony puts the final bullet in A-mount cameras". Digital Camera World. Retrieved 13 August 2024.
Notes