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

SpecificationsSigma 18-125mm f/3.8-5.6 DC OS HSM Lens
  Sigma 18-125mm f/3.8-5.6 DC OS HSM Lens
Year Introduced2008
Mounts OnAPS-C
Lenses / Groups16/12
Angle of View: Diagonal69.3°-11.4°
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  (505g)
Actual Weight 17.3 oz  (490g)
Lens Hood Weight 1.1 oz  (30g)
In-Use Weight 18.4 oz  (520g)
Manufacturer Spec Size (DxL) 2.91 x 3.48”  (74 x 88.5mm)
Measured Size (DxL) 3.06 x 3.81”  (78 x 96.7mm)
Max Length at Full Extension 5.7”  (144.7mm)
Internal Zoom? / Extends with Zoom? N / Y
Zoom Extension Length 1.95”  (49.5mm)
Internal Focusing? / Extends with Focusing? Y / N
Lens Hood Size (DxL) 3.46 x 1.86”  (87.9 x 47.2mm)
Lens Length with Hood (Min-Max) 5.37 - 7.29”  (136.5 - 185.2mm)
Size of Rings: Focus / Zoom 0.81” / 1.4”  (20.6mm / 35.5mm)
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 13.78”  (350mm)
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'
1200mm x 800mm Subject Framing Distance On APS-C DSLR:
18mm = 1051mm
24mm = 1391mm
35mm = 2034mm
50mm = 2856mm
70mm = 3883mm
100mm = 5429mm
125mm = 6407mm
Review Sigma 18-125mm f/3.8-5.6 DC OS HSM Lens
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