Sigma 18-250mm f/3.5-6.3 DC OS HSM Pentax-k

Sigma 18-250mm f/3.5-6.3 DC OS HSM Pentax-k
$479
18-250 mm
autofocus 13.9x zoom lens
f/3.5-6.3
variable aperture
  • Sigma OS Image stabilized
  • Sigma HSM Built in focus motor

reviewswhat are people saying

starstarstarstarstar
B&H Photo Video

Rated 4.5 out of 5 stars by 6 users at B&H Photo Video

"I gave it 5 stars based on what I would expect from a zoom lens and the image quality is really quite impressive for a super zoom; better than anything else of this type that I've seen. It is a good, solid, well made lens and I couldn't be happier with it."

"Excellent clarity with good built in features. While the lens could be a little faster, it works in most situations and the price is also excellent. Highly recommended."

"I find the images coming out quite blurry even when the VR was on. Comparing with my 18-55mm kit lens and 70-300mm Tamron zoom, I'm rather disappointed. The images also tends to be a little dull. Used it to shoot an indoor family gathering with external flash, it struggled to focus and many images came out blurry. At 1.4lbs, it's heavier than my 70-300mm lens, thus, might be hard to hold steady if you are a petite lady like me."

compatibilitywith digital cameras

APS-C (1.5x crop factor)

This lens is compatible with APS-C (1.5x crop factor) cameras such as the Pentax K-30, Pentax K-5 and Pentax K-5 II.

Pentax K-30
66.7 - 5.4°
horizontal angle of view
27.5-379.5mm
35mm equivalent focal length

Pros

The Sigma 18-250mm f/3.5-6.3 DC OS HSM Pentax-k vs other Pentax K lenses

Max focal length Telephoto lens Help
250 mm
Zoom range Huge zoom range Help
13.9x
Focus motor Silent focus motor Help
Silent and fast
Image stabilization More advanced image stabilization Help
Sigma OS

Cons

The Sigma 18-250mm f/3.5-6.3 DC OS HSM Pentax-k vs other Pentax K lenses

Fixed aperture Variable aperture Help
Narrower aperture at longer focal lengths
Aperture Narrow aperture Help
f/3.5
Prime lens Zoom lens Help
Typically not as sharp as prime lenses

Specifications

General

Min focal length
Help
18 mm
Max focal length
Help
250 mm
above average above average
Zoom range
Help
13.9x
unique unique
Magnification
Help
1:3.4 (0.3x)

Aperture

Wide minimum
Help
f/3.5
Wide maximum
Help
f/22
Tele minimum
Help
f/6.3
below average below average
Tele maximum
Help
f/40
unique unique

Features

Auto focus
Help
Yes
Focus motor
Help
Sigma HSM
above average above average
Image stabilization
Help
Sigma OS
above average above average
Fisheye
Help
No
Tilt-shift
Help
No

Form factor

Lens mount
Help
Pentax K
Length
Help
Unknown
Diameter
Help
Unknown
Filter size
Help
72 mm
Weight
Help
0.6 kg

Angle of view

Wide horizontal
Help
66.5°
Telephoto horizontal
Help
5.4°
above average above average
Wide vertical
Help
47.1°
Telephoto vertical
Help
3.6°
above average above average
Wide diagonal
Help
76.4°
Telephoto diagonal
Help
6.5°
above average above average

DiscussionWhat do you think about the Sigma 18-250mm f/3.5-6.3 DC OS HSM Pentax-k lens?

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