sigma 18-50mm f2.8 sony
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size
Great$1.4M$1.4M/yr · 238K searches
Review moat
Great381.13avg incumbent reviews — the moat a new listing must climb
Growth
Good+28.2%90-day search growth — must beat 0% to launch
Competition
Okay64%top-5 click share — leaders hold, buyers still browse
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Returns
Bad6.7%return rate — above 5% kills the launch gate
Conversion
Bad1.0%search→purchase rate — share of searches ending in a sale
Brand share
Bad100%top-5 brand share — brand-locked demand
Avg price
Bad$582.57avg listing price — sweet spot $15–$100
Price range
Bad$223.78–$664.51cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, sigma 18-50mm f2.8 sony is a $1.4M/yr Amazon United States market (238K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Feb–Mar. Verdict: Skip it — 35/100.
Data updated Jul 17, 2026 · scored weekly · How we score niches
sigma 18-50mm f2.8 sony market data
- Units sold / yr
- 2K–3K
- avg 100–250/product
- Revenue / yr
- $1.2M–$1.5M
- units × avg price
- Conversion rate
- 1.0%
- Avg BSR
- #219
- Page quality
- 0%
- Prime
- 53%
- Sponsored
- 93%
- Out of stock
- 3.2%
- Avg brand age
- 69 months
- Avg seller age
- 178 days
Competition & brand share
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.Brands
4 rising
Sellers
90
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
64%
Top 20: 100%
Open market
0%
- Sigma91%
- Tamron4%
- SSE3%
- Sony1%
Demand & seasonality
Weekly Amazon search volume, last 80 weeks — +28.2% search growth over the last 90 days.Peak months: Jan, Feb, Mar · busiest ÷ quietest = 2.4×
Top sigma 18-50mm f2.8 sony search terms
- sigma 18-50mm f2.8 sony175K/yr
- sigma 18-5018K/yr
- sigma 18-50mm9K/yr
- sigma 18-50mm f/2.86K/yr
- sigma 18-50mm f/2.8 dc dn6K/yr
- sigma 18-50mm f2.86K/yr
- 18-50mm f2.8 sony5K/yr
- sigma 18-50mm f2.8 sony e-mount2K/yr
- sigma 18 505K/yr
- sigma 18-50mm f/2.8 dc dn contemporary lens for sony e2K/yr
Top sigma 18-50mm f2.8 sony products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Sigma 18-50mm F2.8 DC DN Contemporary Zoom Lens (for E Mount) Black
Sigma$563.814.7★1,690 rev
Sigma 18-50mm F2.8 DC DN Contemporary Lens for Sony E-Mount with Tiffen 55mm UV Protector Filter SanDisk 128GB Extreme PRO UHS-I SDXC Memory Card and Waith Camera Backpack (Bundle Set)
Sigma$613.654.6★33 rev
Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Sony E Bundle with UV Filter + Deluxe Cleaning Kit - Blower Lens Pen Brush & Case + Cap Keeper + Microfiber Cleaning Cloth (4 Items)
Sigma$607.494.8★39 rev
Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Sony E Mount with Tiffen CPL Filter 64GB SD Card and Camera Bag Bundle (4 Items)
Sigma$622.844.9★41 rev
Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Sony E with 4-Year USA Warranty 55mm UV/CPL/ND Filter Kit Backpack Cleaning Kit Lens Cleaner Cap Tether & Software Kit
Sigma$618.704.4★14 rev
Newest
by launch date
Sigma 18-50mm f/2.8 DC DN Contemporary Sony E (MFR Part #585965) Bundle. Great for Professional Portraits Weddings Indoor/Outdoor Adventure Wildlife Travel and Photo use + Accessories
Sigma$664.510 rev
SIGMA 18-50mm F2.8 DC DN Contemporary Lens for Canon RF Mount Mirrorless Cameras
Sigma$575.93194 rev
Sigma 18-50mm F2.8 DC DN Contemporary Lens for Sony E-Mount with Tiffen 55mm UV Protector Filter SanDisk 128GB Extreme PRO UHS-I SDXC Memory Card and Waith Camera Backpack (Bundle Set)
Sigma$613.6533 rev
Sigma 18-50mm f2.8 DC DN Contemporary Lens for Sony E with Sunshine Photo Advanced Bundle - 4 Years USA Manufacturer Warranty
Sigma$607.432 rev
Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Sony E Bundle with UV Filter + Deluxe Cleaning Kit - Blower Lens Pen Brush & Case + Cap Keeper + Microfiber Cleaning Cloth (4 Items)
Sigma$607.4939 rev
Trending
90-day click momentum
Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Sony E - Bundle with 55mm Filter Kit Case Cleaner Cleaning kit Movo Sling Strap Cap Tether
Sigma$617.445.0★
Sigma 18-50mm f/2.8 DC DN Contemporary Sony E (MFR Part #585965) Bundle. Great for Professional Portraits Weddings Indoor/Outdoor Adventure Wildlife Travel and Photo use + Accessories
Sigma$664.510.0★
Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Sony E with 4-Year USA Warranty 55mm UV/CPL/ND Filter Kit Backpack Cleaning Kit Lens Cleaner Cap Tether & Software Kit
Sigma$618.704.4★
Sony - FE 50mm F1.8 Standard Lens (SEL50F18F/2) Black
Sony$223.784.7★
SIGMA 18-50mm F2.8 DC DN Contemporary Lens for Canon RF Mount Mirrorless Cameras
Sigma$575.934.6★
What buyers say about sigma 18-50mm f2.8 sony
What buyers praise and complain about, mined from review topics.What buyers love
“the best lens I could choose for my camera”
“Great quality”
“Price is affordable”
“The picture quality is stunning”
“It strikes an ideal balance between performance, size, and price, making it a perfect everyday zoom for a wide range of shooting situations”
“The bokeh is smooth and pleasing, and the constant F2.8 aperture is an absolute blessing for content creation in mixed or low-light environments”
“fast autofocus”
“the color is amazing”
“Compact”
“exactly as described”
What buyers complain about
“Truly awful lens”
“autofocus not the best”
“Its too big”
“Not a new lens”
“BUG / COMPATIBILITY ISSUES”
“one of the legs broke off immediately by just trying to unfold it”
“bought it all separately for quality”
“the stabilization is just plain bad”
“Cheap accessories”
“the card that is included in this bundle doesn't work”
Top return reasons
Common questions
- Is sigma 18-50mm f2.8 sony profitable to sell on Amazon United States?
- The niche generates $1.4M/yr across 15 tracked products. 90-day search growth is +28.2%. Flapen's verdict: Skip it (35/100).
- How competitive is the sigma 18-50mm f2.8 sony niche?
- 4 brands and 90 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in sigma 18-50mm f2.8 sony?
- Top complaints mined from reviews: Lenses, Auto Focus, Size-Overall. The return rate is 6.7% — above our launch gate.
- When does demand for sigma 18-50mm f2.8 sony peak?
- Demand peaks in Jan–Feb–Mar; the busiest month runs 2.4× the quietest.
- What does it cost to enter the sigma 18-50mm f2.8 sony niche?
- Listings span $223.78–$664.51; the average listing price is $582.57 (sweet spot $15–$100). The average incumbent carries 381 reviews — the moat a new listing must climb.