The Sigma 100-300 provides a unique lens not quite matched by anything else. It is fairly small and light for a zoom telephoto (similar in size to the 80-400 VR lens). With a fixed f/4.0 aperture it is faster at 300mm than the 80-400 and most other telephoto zooms. Its quite sharp and fairly easy to handhold in good light. Image quality is a bit better than the 80-400 VR, but without a vibration reduction system. Numerous reviewers state that this, along with the 120-300 f/2.8, are the best lenses Sigma makes.

Lens Construction

Roger's Take

Roger Cicala

President of LensRentals.com

First, let me say this is a superb lens: its sharp as a tack, autofocuses fairly well and pulls off the difficult twosome of being both reasonably sized and sturdily built. But it reminds me of the expression “A triumph of technology over common sense”. It does what it does very well, but I personally don’t need what it does very often. If I want a telephoto lens, I generally want at least 400mm, and with a teleconverter mounted the 100-300 loses some of its luster and becomes a rather ordinary f/5.6 lens. If I’m shooting up to 200mm, I’d rather have an f/2.8 lens. So I find it useful as a telezoom on a crop camera, or to get a bit more reach than a 70-200 when the light is good. When I use it, I really like it, I just don’t use it that often.

Filter Size

82mm (nonrotating front element)

Aperture

f4-32

Length

8.8”

Diameter

3.6”

Weight

3.25 lb

Hood

Included, no part number

Minimum Focusing Distance

5.6 feet

Maximum Magnification

0.20x

Angle of view: (full frame)

8-24 degrees

Zoom method

Internal, nonextending, nonrotating

Image Stabilization

None

Focusing System

Internal, HSM motor, AF-MF switch, focus limiting switch

Aperture Blades

9, curved, circular

Groups/Elements

14/16

Low Dispersion Elements

3

Fluorite Elements

0

Aspherical Elements

0

Weather Resistant

Yes

Flare resistance

-

Autofocus

Yes

Links

• Instruction Manual
• Review Photodo

Diagrams

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