Sigma 400 mm f/ 5.6 APO Lens

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Pictures

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 (13303)

Average price: $283

Specifications:

Focal length	Max. aperture	Min. aperture	Blades	Min. Focus (m.)	Filter Ø (mm.)	Weight (gr/oz)	Length (mm/in)
400mm	f/5.6	f/32	6	4	72	1053/37,1	223/8,8

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:

The review on dyxum.com

Posted by: vorobaz Date of publication: 05.08.2011

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

All photos

***
Autor: vorobaz

4.33

3071

****
Autor: vorobaz

3080

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

2095

Mechanical quality	4.50	2
Optical quality	4.00	2
Usability	5.00	2
Pricing / Value	4.50	2
Bokeh	4.50	2
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 :)

Comments (0)