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Sigma 400 mm f/ 5.6 APO Lens

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Sigma 400 mm f/ 5.6 APO   lens

Sigma 400 mm f/ 5.6 APO   lens

Sigma 400 mm f/ 5.6 APO   lens

Format: 35mm SLR

Type: Prime lens

Focusing: Auto Focus (AF)

Lens mounts: Canon EF, EF-S, Sony A / Minolta A, Nikon F (FX, DX), Pentax K

Optical design: 10 elements in 7 groups

User reviews (1)

Photos (3)

Tests (0)

Owners (2)

Views (7185)

Average price: $283

Specifications:

Focal lengthMax. apertureMin. apertureBladesMin. Focus (m.)Filter Ø (mm.)Weight (gr/oz)Length (mm/in)
400mmf/5.6f/3264721053/37,1223/8,8

Additional information:

The Sigma  400 mm f/ 5.6 APO  is a telephoto lens for 35-мм SLR cameras of major autofocus systems.

APOstands for Apochromatic lens.

Sigma apochromatic lenses reduce chromatic aberration to a minimum. Since refraction index of light depends on wavelength of light, chromatic aberration occurs when the lens fails to focus all colors to the same convergence point. This problem is especially characteristic of telephoto lenses, but low dispersion glass elements (SLD, Special Low Dispersion, and ELD, Extra Low Dispersion), applied  in Sigma apochromatic lenses, effectively prevent chromatic aberration and improve pictures quality.


Links to online resources:
Posted by: vorobaz   Date of publication: 05.08.2011



Photos taken with this lens Sigma 400 mm f/ 5.6 APO :


***
Autor: vorobaz
4.33 0 1840

****
Autor: vorobaz
4 0 1751

Sigma 400mm F5.6 D APO TELE MACRO
Autor: Sean Teng
3.5 0 493

Mechanical quality4.502
Optical quality4.002
Usability5.002
Pricing / Value4.502
Bokeh4.502
Overall lens rating
4.50

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Owner reviews: Sigma 400 mm f/ 5.6 APO

Ferenc Boloni 19.01.2018 04:57:48
Period of use: 1 year

Strengths:

Small cheap fast focus but don't wait miracle from it . dyxum.com have a right rating about  the sharpness of this lens is weak .


Weaknesses:

Because is not sharp  from f/5.6 i think is better look from other lens :)


Comments:

Maybe some other versions of this lens  are good but mine is good for decoration in my room :)