DealsBuying guidesBrandsStoresTermsPrivacydeal.ai apps

© Deal.ai Inc.

Deal.ai › Compare

Sigma 10-18mm F2.8 DC DN Contemporary Lens For Sony E-Mount vs Sigma 18-50mm f/2.8 DC DN Contemporary

Buy the 10-18mm F2.8 if you shoot wide: interiors, landscapes, vlogging with the camera held close. Buy the 18-50mm F2.8 if you want one lens for everyday shooting. The 18-50mm is $499 at Focus Camera as of November 3, 2026, and the 10-18mm is $729 at Best Buy as of November 3, 2026. Both are constant f/2.8 APS-C zooms for Sony E, so the choice is about focal range, not speed.

Today the Sigma 18-50mm f/2.8 DC DN Contemporary costs $239.05 less at its best price.

Ask our shopping agent

Enter to send, Shift+Enter for a new line

Sigma
Sigma 10-18mm F2.8 DC DN Contemporary Lens For Sony E-Mount

Sigma 10-18mm F2.8 DC DN Contemporary Lens For Sony E-Mount

5· 2 ratings
$729.00at Best BuyObserved at 1:43 PM
Visit store

Choose the 10-18mm F2.8 if you need ultra-wide coverage, a 15-27mm full-frame equivalent view, and a 255g lens that gimbals and vlogging rigs handle easily.

Pros
  • Constant f/2.8 across the whole 10-18mm range
  • Smallest and lightest ultra-wide f/2.8 zoom for APS-C, per Sigma
  • 11.6cm minimum focus gives close foregrounds with wide backgrounds

What separates them

Sigma 10-18mm F2.8 DC DN Contemporary Lens For Sony E-MountSigma 18-50mm f/2.8 DC DN Contemporary
Focal range (APS-C)10-18mm, about 15-27mm full-frame equivalent18-50mm, about 27-75mm full-frame equivalent
Best price as of November 3, 2026$729.00 at Best Buy$499.00 at Focus Camera
Weight255g (9.0 oz) on Sony EAbout 290g; compact 4.8-inch body
Closest focus11.6cm at 10mm, 1:4 magnificationClose-focusing standard zoom, good for food and detail
Filter thread67mm55mm
Use caseUltra-wide interiors, landscapes, gimbal videoEveryday, travel, portraits, vlogging
Shopper ratings5 of 5 from 2 ratings4.9 of 5 from 692 ratings

Price history

  • Sigma 10-18mm F2.8 DC DN Contemporary Lens For Sony E-Mount: lowest $729.00 on Nov 3 at Best Buy.
  • Sigma 18-50mm f/2.8 DC DN Contemporary: lowest $499.00 on Nov 3 at Competitive Cameras.

Prices at every store

Sigma 10-18mm F2.8 DC DN Contemporary Lens For Sony E-Mount

  • Best BuyNew

    In stock

    $729.00Free shippingObserved at 1:43 PM
    Visit store
  • B&H Photo-Video-AudioNew

    Availability unknown

    $729.00Free shippingObserved at 12:39 PM
    Visit store
  • Macy'sNew

    Availability unknown

    $729.00Free shippingObserved at 12:39 PM
    Visit store
  • WalmartNew

    Availability unknownSold by Focus Camera

    $729.00Free shippingObserved at 12:39 PM
    Visit store

Also available at

  • ThursdayClubCheck price at ThursdayClub
All 8 stores and price history →

Specs compared

SpecSigma 10-18mm F2.8 DC DN Contemporary Lens For Sony E-MountSigma 18-50mm f/2.8 DC DN Contemporary
MountSony ESony E
Maximum Aperturef/2.8f/2.8
AsphericalYesYes
ColorBlack, Mount Product LBlack
TypeZoomZoom
Image StabilizingYes—
Specialty TypeWide Angle—
Focal Length Range10-18mm—
Minimum ApertureF22—
Filter Size67mm—

What reviewers say

Sigma 10-18mm F2.8 DC DN Contemporary Lens For Sony E-Mount

Owner feedback is limited but positive, with the two ratings on record averaging 5 out of 5. Reviewers of the lens generally praise its size, weight and constant f/2.8 aperture for the price.

Pros
  • Small and light for an f/2.8 ultrawide
  • Sharp across the frame stopped down
  • Fast, quiet autofocus for stills and video
Cons
  • Some softness and vignetting wide open at 10mm
  • No weather sealing
  • Hood is push-on rather than bayonet

Sigma 18-50mm f/2.8 DC DN Contemporary

Owners rate it very highly, at 4.9 out of 5 from 692 ratings. Most praise the size-to-aperture ratio and sharpness, and accept the plastic build and lack of stabilization as the price of that compactness.

Pros

Questions and answers

Which is better for vlogging?
The 10-18mm F2.8, if you hold the camera at arm's length or use a gimbal; 15mm equivalent fits your face and the room. The 18-50mm is better on a tripod or for talking-head shots where you want a tighter frame.
Which is better for travel?
The 18-50mm F2.8. One lens covers street scenes, food and people at 27-75mm equivalent, and it costs $499 at Focus Camera as of November 3, 2026.
Do I need both?
Only if you shoot wide often. The two ranges barely overlap, 18mm is the shared point, so together they cover 15-75mm equivalent at f/2.8.
Is the 10-18mm worth $230 more?
Only if ultra-wide is your main work. The 18-50mm matches it on aperture and is cheaper; the extra money buys the 10-17mm range and a lighter body.
Which lasts longer?
Both are Sigma Contemporary zooms with similar build. Neither is weather-sealed, so lifespan depends on care, not on which you pick.

More comparisons

  • Sigma 16-300mm F3.5-6.7 DC OS Contemporary Lens For Sony E-Mount vs Sigma 18-50mm f/2.8 DC DN Contemporary
  • Sigma 16-300mm F3.5-6.7 DC OS Contemporary Lens For Sony E-Mount vs Sigma 10-18mm F2.8 DC DN Contemporary Lens For Sony E-Mount

Buying guides that pick them

  • Best Sigma zoom lenses for Sony E-mount under $500
Minimal focus breathing and a stepping motor suit gimbal video
Cons
  • $230 more than the 18-50mm at current best prices
  • Ultra-wide only; poor fit for portraits or distant subjects
  • Only 2 ratings, so little shopper feedback
  • 67mm filters cost more than 55mm
Sigma
Sigma 18-50mm f/2.8 DC DN Contemporary

Sigma 18-50mm f/2.8 DC DN Contemporary

4.9· 692 ratings
$489.95at eBayVerified
Visit store

Choose the 18-50mm F2.8 if you want a 27-75mm equivalent standard zoom that covers people, food and travel in one 4.8-inch barrel.

Pros
  • Covers the useful 27-75mm equivalent everyday range
  • $499 at Focus Camera, the cheaper of the two
  • 4.9 of 5 from 692 ratings
  • Constant f/2.8 and light enough to carry all day
Cons
  • Not wide enough for tight interiors or big landscapes
  • 55mm filter thread is fine but limits nothing; the wide end stops at 27mm equivalent
  • No optical stabilization; relies on the camera body
Stores pricing it new8 stores12 stores

Sigma 18-50mm f/2.8 DC DN Contemporary

  • Best BuyNew

    In stock

    $499.00Observed at 12:38 PM
    Visit store
  • eBayNew

    Availability unknownSold by compcameras (100% positive, 1,500 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $489.95Free shippingVerified
    Visit store
  • Abt Electronics & AppliancesNew

    Availability unknown

    $499.00Observed at 1:44 PM
    Visit store
  • Focus CameraNew

    Availability unknownReturn policy

    $499.00Observed at 12:39 PM
    Visit store

Also available at

  • eBayCheck price at eBay
  • Kenmore CameraCheck price at Kenmore Camera
  • Pixel ConnectionCheck price at Pixel Connection
All 12 stores and price history →
Maximum Magnification Ratio
1:4 (W) - 1:6.9 (T)
—
Diaphragm Blades7 (rounded diaphragm)—
Show all 24 specsShow fewer specs
SpecSigma 10-18mm F2.8 DC DN Contemporary Lens For Sony E-MountSigma 18-50mm f/2.8 DC DN Contemporary
Dimensions L-Mount72.2mm x 62.0mm / 2.8 in. x 2.4 in.—
Weight L-Mount260g / 9.2 oz.—
Weight Sony E-mount255g / 9.0 oz.—
Sensor CoverageAPS-C—
Lens Mount CompatibilitySony E-Mount, Sony E-Mount, Sony E-Mount, Sony …—
Lens TypeWide Angle zoom, Wide Angle zoom, Wide Angle zo…—
Minimum Focal Length10 millimeters—
Maximum Focal Length18 millimeters—
BrandSigma—
Model Number207965—
Brand CompatibilitySony, Sony, Sony, Sony, Sony—
size—4.8" / 12.1 cm
Small and light enough to carry all day
  • f/2.8 at every focal length
  • Sharp images, especially in the center
  • Good value against first-party f/2.8 zooms
  • Cons
    • No optical stabilization
    • Barrel is plastic and not weather sealed
    • No lens hood included
    • Corner softness wide open