Canon RF 24-105mm f/4-7.1 IS STM vs Sigma 15mm f/1.4 DC Contemporary (Canon RF)
Side-by-side used price and spec comparison. Lowest current prices pulled daily from the major used-gear sites.
Lowest now
$219
MSRP
$399
-45% vs MSRP
Well above the 90-day low
Today's price sits well above the recent low. Today's price runs 22% above the 90-day low of $179 (seen Sep 16, 2026). 55% of the $399 MSRP. Prices are down 4.4% over the last 30 days.
Lowest now
$490
MSRP
$579
-15% vs MSRP
Typical pricing right now
Today's price sits in the middle of its recent range. The 90-day window runs from $425 to roughly today's $490. 85% of the $579 MSRP. Prices are up 2.1% over the last 30 days.
Specs side by side
| Canon RF 24-105mm f/4-7.1 IS STM | Sigma 15mm f/1.4 DC Contemporary (Canon RF) | |
|---|---|---|
| Brand | Canon | Sigma |
| Family | Canon RF | Sigma |
| Category | lens | lens |
| Body type | — | — |
| Mount | Canon RF | Canon RF |
| Sensor | — | — |
| Megapixels | — | — |
| Lens type | zoom | prime |
| Focal length | 24–105mm | 15mm |
| Aperture | f/4.0–f/7.1 | f/1.4 |
| Weight | 395 g | 240 g |
| Filter thread | 67mm | 58mm |
| Length | 88 mm | 63 mm |
| Diameter | 76 mm | 69 mm |
| Construction | engineering plastic | — |
| Released | 2020-07-09 | 2026-02-24 |
| Discontinued | — | — |
| Status | current | current |
| MSRP | $399 | $579 |
| Current low | $219 | $490 |
| vs MSRP | -45% | -15% |
Both cameras appear in
Curated best-under lists where both of these qualify today.
The verdicts above describe price timing. They don't tell you which camera fits your shooting style. See /methods for how we normalize seller conditions and compute the deal score.