Key specs
A human-friendly subset of populated specs
Focal length
21-50 mm
Max aperture
f/3.5
Mount
Canon EF
Weight
2 pounds
Pros & Cons
Based on quantified comparisons vs. 249 lenss
✓ Pros
No standout strengths detected
✗ Cons
- Weight Kg (0.91) — bottom 19% of lenss
How this Lens compares vs. 249 lenss
Percentile rank for each spec — higher means this product outperforms more of its peers.
Spec Profile Radar
Visual snapshot — outer edge = 100th percentile (best in class)
Offers
| Retailer | SKU | Price | Stock | Offer | Last seen |
|---|---|---|---|---|---|
| Best Buy | 5632206 | 279.0 USD | Out of stock | View offer → | 2026-04-08 01:32 |
| Newegg | 9SIC2AGKK39377 | 239.05 USD | In stock | View offer → | 2026-04-29 02:22 |
Recent price history (50)
Show price log (50 entries)
| Retailer | Price | Stock | Seen at |
|---|---|---|---|
| newegg | 239.05 USD | In stock | 2026-04-29 02:22 |
| newegg | 239.05 USD | In stock | 2026-04-28 02:19 |
| newegg | 239.05 USD | In stock | 2026-04-27 02:19 |
| newegg | 239.05 USD | In stock | 2026-04-26 02:19 |
| newegg | 239.05 USD | In stock | 2026-04-25 02:18 |
| newegg | 239.05 USD | In stock | 2026-04-24 02:26 |
| newegg | 239.05 USD | In stock | 2026-04-23 02:16 |
| newegg | 239.05 USD | In stock | 2026-04-22 02:17 |
| newegg | 239.85 USD | In stock | 2026-04-21 02:13 |
| newegg | 239.05 USD | In stock | 2026-04-20 02:22 |
| newegg | 239.95 USD | In stock | 2026-04-19 02:26 |
| newegg | 239.05 USD | In stock | 2026-04-19 02:26 |
| newegg | 239.95 USD | In stock | 2026-04-18 02:25 |
| newegg | 239.05 USD | In stock | 2026-04-18 02:25 |
| newegg | 239.95 USD | In stock | 2026-04-17 02:25 |
| newegg | 239.05 USD | In stock | 2026-04-17 02:25 |
| newegg | 239.95 USD | In stock | 2026-04-16 13:30 |
| newegg | 239.95 USD | In stock | 2026-04-16 02:18 |
| newegg | 239.95 USD | In stock | 2026-04-15 02:22 |
| newegg | 239.95 USD | In stock | 2026-04-14 02:16 |
| newegg | 239.95 USD | In stock | 2026-04-13 02:30 |
| newegg | 239.95 USD | In stock | 2026-04-12 02:25 |
| newegg | 239.95 USD | In stock | 2026-04-11 02:20 |
| newegg | 239.85 USD | In stock | 2026-04-10 02:31 |
| newegg | 239.95 USD | In stock | 2026-04-09 02:19 |
| newegg | 239.05 USD | In stock | 2026-04-09 02:19 |
| newegg | 239.95 USD | In stock | 2026-04-08 02:31 |
| newegg | 239.05 USD | In stock | 2026-04-08 02:31 |
| bestbuy | 279.0 USD | Out of stock | 2026-04-08 01:32 |
| newegg | 239.95 USD | In stock | 2026-04-07 02:23 |
| newegg | 239.95 USD | In stock | 2026-04-06 02:23 |
| newegg | 239.95 USD | In stock | 2026-04-05 02:21 |
| bestbuy | 279.0 USD | Out of stock | 2026-04-05 01:34 |
| newegg | 239.95 USD | In stock | 2026-04-04 02:14 |
| bestbuy | 279.0 USD | Out of stock | 2026-04-04 01:35 |
| newegg | 239.95 USD | In stock | 2026-04-03 02:26 |
| bestbuy | 279.0 USD | Out of stock | 2026-04-03 01:29 |
| newegg | 239.95 USD | In stock | 2026-04-02 02:18 |
| bestbuy | 279.0 USD | Out of stock | 2026-04-02 01:31 |
| newegg | 239.95 USD | In stock | 2026-04-01 02:25 |
| bestbuy | 279.0 USD | In stock | 2026-04-01 01:28 |
| newegg | 239.95 USD | In stock | 2026-03-31 02:25 |
| bestbuy | 279.0 USD | In stock | 2026-03-31 01:39 |
| newegg | 239.95 USD | In stock | 2026-03-30 02:21 |
| bestbuy | 279.0 USD | In stock | 2026-03-30 01:25 |
| newegg | 239.95 USD | In stock | 2026-03-29 02:17 |
| bestbuy | 279.0 USD | In stock | 2026-03-29 01:36 |
| newegg | 239.95 USD | In stock | 2026-03-28 02:23 |
| bestbuy | 279.0 USD | In stock | 2026-03-28 01:34 |
| newegg | 239.95 USD | In stock | 2026-03-27 02:16 |
Full specs
Show full spec table
| Focal length | 21-50 mm |
|---|---|
| Max aperture | f/3.5 |
| Mount | Canon EF |
| Weight (kg) | 0.91 |
| Reconciled at | 2026-03-06 10:56 |
Canonical JSON (expand)
{
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"car": {},
"cpu": {},
"gpu": {},
"core": {
"title": "Sigma - Mount Converter MC-11",
"seo_title": "Sigma 89E965"
},
"lens": {
"mount": "Canon EF",
"focal_length": "21-50 mm",
"max_aperture": "f/3.5"
},
"audio": {},
"brand": "Sigma",
"build": {},
"extra": {},
"model": "89E965",
"ports": {},
"power": {},
"camera": {
"mount": "Canon EF"
},
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"memory": {},
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"storage": {},
"category": "lens",
"features": {},
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},
"thermals": {},
"warranty": {
"labor": "4 Years",
"parts": "4 Years"
},
"wearable": {},
"appliance": {},
"networking": {},
"peripheral": {},
"smart_home": {},
"certifications": {},
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}
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Related products
Simple similarity over extracted specs (publish_set only)
Debug data (expand)
| Raw title | Sigma - Mount Converter MC-11 |
|---|---|
| Raw brand | Sigma |
| Raw category | Best Buy > Cameras, Camcorders & Drones > Digital Camera Accessories > Camera Lenses > DSLR Lenses > DSLR Short-Range Zoom Lenses |
Canonical highlights (populated fields only)
| core.title | Sigma - Mount Converter MC-11 |
|---|---|
| core.seo_title | Sigma 89E965 |
| lens.mount | Canon EF |
| lens.focal_length | 21-50 mm |
| lens.max_aperture | f/3.5 |
| brand | Sigma |
| model | 89E965 |
| camera.mount | Canon EF |
| gtin14 | 00085126932503 |
| images[0] | https://pisces.bbystatic.com/image2/BestBuy_US/images/products/5632/5632206ld.jpg |
| category | lens |
| physical.weight_kg | 0.91 |
| warranty.labor | 4 Years |
| warranty.parts | 4 Years |
| schema_version | 1 |
BestBuy raw specs (pretty)
Expand BestBuy raw JSON
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"shippingCost": "",
"longDescription": "Attach different lenses to a Sony E-mount camera body easily with this Sigma mount converter. It's compatible with Sigma AS and EOS interchangeable lenses, providing a smooth autofocus and reliable optical stabilization for your camera. This Sigma mount converter adapts to the latest lens models by updating its control data from your computer.",
"shortDescription": null,
"onlineAvailability": false,
"inStoreAvailability": false
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Newegg raw specs
raw_specs_text (pretty) — expand
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