18-200mm f/3.5-6.3 DC OS HSM

18-200mm
f/3.5
Superzoom

Quick answer

The Sigma 18-200mm f/3.5-6.3 DC OS HSM is a ultra-wide to telephoto superzoom lens covering 18-200mm at f/3.5 for the Sony A mount. Its moderate maximum aperture works best in good light or with a higher ISO.

About this lens

A 18-200mm f/3.5-6.3 APS-C superzoom lens, the Sigma 18-200mm f/3.5-6.3 DC OS HSM is designed for Sony A mount bodies, with Optical Stabilizer and Hyper Sonic Motor autofocus. A high-ratio walk-around zoom for APS-C cameras.

Sigma 18-200mm f/3.5-6.3 DC OS HSM specifications

Brand: Sigma
Mount: Sony A
Focal length: 18-200mm
Maximum aperture: f/3.5
Lens type: Superzoom

What can you shoot with the Sigma 18-200mm f/3.5-6.3 DC OS HSM?

At 18-200mm this is a ultra-wide to telephoto superzoom, which typically suits:

Landscapes and big skies
Architecture and interiors
Astrophotography and night skies
Landscapes and cityscapes
Street and travel photography

Its moderate maximum aperture works best in good light or with a higher ISO.

Full-frame equivalent and field of view

Calculated from the focal length and crop factor. Not measured.

Sensor	Crop	Equivalent	Horizontal FOV	Diagonal FOV
Full frame	1.0x	18–200mm	10.3–90°	12.3–100.5°
APS-C	1.5x	27–300mm	6.9–67.4°	8.2–77.4°

Try the field-of-view calculator

Frequently asked questions

What mount does the Sigma 18-200mm f/3.5-6.3 DC OS HSM use?

It uses the Sony A mount, so it fits Sony A cameras directly.

What is the focal length of the Sigma 18-200mm f/3.5-6.3 DC OS HSM?

It zooms across 18-200mm with a maximum aperture of f/3.5. That makes it a ultra-wide to telephoto lens.

Is the Sigma 18-200mm f/3.5-6.3 DC OS HSM a prime or a zoom lens?

It is a zoom lens covering 18-200mm, so you can reframe without moving. Its maximum aperture is f/3.5.

What is the Sigma 18-200mm f/3.5-6.3 DC OS HSM equivalent on a crop sensor?

On APS-C (1.5x crop) it frames like 27–300mm on full frame, with a 6.9–67.4° horizontal and 8.2–77.4° diagonal field of view. These figures are calculated from the focal length and crop factor.