Canon RF 100-400mm f/5.6-8 IS USM
lens · Canon RF · released 2021-09-01
MSRP at launch
—
Sep 2021
Inventory
87
across 3 sources
Prices are rising
How we compute thisUsed prices have been rising recently. Prices are up 7.0% over the last 30 days. The 90-day low was $455, $144 below today.
- Lowest now
- $599
- 90-day low
- $455
- All-time low
- $455 (Sep 15, 2026)
- 30-day trend
- +7.0%
Latest pricing by source
Each row is a direct observation from the seller. eBay links are affiliate links. How this works.| Source | Condition | Price | Listings | Observed | Link |
|---|---|---|---|---|---|
| ebay | used → good | $600
shipping not quoted
| 8 | Observed yesterday | view listing |
| keh | excellent → excellent | $700 | 1 | Observed 4d ago | view listing |
| keh | excellent plus → excellent | $719 | 1 | Observed 2d ago | view listing |
| keh | like new minus → mint | $748 | 30 | Observed yesterday | view listing |
| mpb | good → good | $599 | 1 | Observed 8d ago | view listing |
| mpb | excellent → excellent | $614 | 29 | Observed yesterday | view listing |
| mpb | like new → mint | $664 | 17 | Observed yesterday | view listing |
Price history
One point per day per (source, grade) pair, connected with lines. Hue marks the source; lightness within a hue marks the condition (darker = better grade). The dashed line is launch MSRP.
See Methods notes #1.1, #1.2, #1.3, #1.4.
Loading price history
Specs
- Brand
- Canon
- Family
- Canon RF
- Category
- lens
- Body type
- —
- Mount
- Canon RF
- Sensor
- —
- Megapixels
- —
- Lens type
- zoom
- Focal length
- 100–400mm
- Aperture
- f/5.6–f/8.0
- Weight
- 635 g
- Filter thread
- 67mm
- Length
- 165 mm
- Diameter
- 80 mm
- Construction
- —
- Released
- 2021-09-01
- Status
- active
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Sample photos
Photos matching "Canon RF 100-400mm f/5.6-8 IS USM" on Flickr.
Browse shots on FlickrHow we compute each section
References on each chart link down here. More notes will land as new sections grow.
1. Price history
- #1.1 · Grade buckets
-
Each seller publishes their own raw condition labels (e.g. "Excellent+", "Like new minus", "Bargain"). Those are normalized to a small bucket set:
mint,excellent,good,fair,poor, andunknown. The "Latest pricing by source" table above shows both the raw label and the normalized bucket so you can audit any individual mapping. - #1.2 · Missing days
- A point is only drawn on a day when a snapshot existed for that (source, grade) pair. Lines connect across gaps so a series with sparse sampling still reads as a single trend, but absence of a point does not mean a stockout: it means we didn't see a listing at that grade that day.
- #1.3 · Color encoding
- Hue carries the source: terracotta = mpb, sage = keh, cobalt = B&H, honey = ebay. Lightness within a hue carries the condition: darker means a better grade (mint and excellent are darkest; poor is lightest). The dashed ink line is launch MSRP, included as a reference even though it isn't a price observation.
- #1.4 · Shipping
- Every price on this page is the item price, the number the seller puts on the listing. Where a seller quotes shipping we show it underneath as a separate line and add it up for you, because on used marketplaces it is not small: a lens listed at $189 can carry $74 of shipping, which is 39% on top. Dealers (mpb, keh, B&H) ship domestically free or flat and we do not ask them for a figure. Where eBay quotes nothing the row says so, because some listings calculate shipping from your address and we cannot know it; on the 2026-08-23 crawl that was about a third of eBay listings, and most of them were US sellers rather than overseas ones. Price history charts the item price throughout, so a series stays comparable to its own past.
- #1.5 · Lenses sold in several mounts
- A third-party lens like the Sigma 35mm f/1.4 Art is one optic in a dozen mounts, and the mounts don't sell for the same money, so each one gets its own page here. Listings are less tidy: plenty of them read "Sigma 35mm f/1.4 DG HSM Art Lens" and never say which mount that is. We reject a listing whose title names a different mount, but a title that names none can't be contradicted, and we keep it rather than leave the page blank. That is a deliberate trade of precision for coverage, and it only applies to lenses carrying the note above the price table. If the exact mount matters to you, open the listing.