Sigma 18-125mm f/3.8-5.6 DC OS HSM Lens Specifications and Measurements

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SpecificationsSigma 18-125mm f/3.8-5.6 DC OS HSM Lens
  Sigma 18-125mm f/3.8-5.6 DC OS HSM Lens
APS-C Sensor DSLRs Only? Y
Lenses / Groups 16/12
Angle of View: Diagonal 69.3°-11.4°
Angle of View: Horizontal
Angle of View: Vertical
Aperture Range - Wide / Long f/4.0-22 / f/5.6-22
Aperture Max by Focal Length f/4.0 @ 18mm
f/4.5 @ 28mm
f/5.0 @ 41mm
f/5.6 @ 73mm
Number of Aperture Blades 7
Rounded Aperture?
Manufacturer Specification Weight 17.8 oz
Actual Weight 17.3 oz
Lens Hood Weight 1.1 oz
In-Use Weight 18.4 oz
Manufacturer Spec Size (DxL) 2.91 x 3.48”
Measured Size (DxL) 3.06 x 3.81”
Max Length at Full Extension 5.7”
Internal Zoom? / Extends with Zoom? N / Y
Zoom Extension Length 1.95”
Internal Focusing? / Extends with Focusing? Y / N
Lens Hood Size (DxL) 3.46 x 1.86”
Lens Length with Hood (Min / Max) 5.37 / 7.29”
Size of Rings - Zoom / Focus 1.4” / 0.81”
Filter Size 67mm  UV ► CP ►
Front Element (Filter Mount) Rotates N
AF Motor Type HSM
Full Time Manual Focus N
Focus Ring Rotation 51°
Focus Limiter? / Focus Limiter Ranges N
Distance Scale? / Type Y / Printed
Close Focus  
Specified Min Focus Distance 13.8” / 13.8”
Tested Min Focus Distance (Wide / Long)
Maximum Magnification (MM) 0.26x
Magnification Range with 12mm Ext Tube
Magnification Range with 25mm Ext Tube
Zoom Ring Rotation 72°
Tripod Ring Included? / Removable? N
Zoom Ring Lock Switch? Y
Lens Hood Included / Model? Y /
Weather Sealed? / Filter Required? N
Image Stabilization? / Stops? / Tripod Sensing? Y / 4 /
Extender Compatible?
Case Included? / Type? N /
47.25" x 31.5" Subject Framing Distance On APS-C DSLR:
18mm = 3.45'
24mm = 4.56'
35mm = 6.67'
50mm = 9.37'
70mm = 12.74'
100mm = 17.81'
125mm = 21.02'
Year Introduced 2008
Review Sigma 18-125mm f/3.8-5.6 DC OS HSM Lens
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