We may earn a commission from affiliate retailers — it never changes our score.
Canon
Canon RF100-400mm F5.6-8 is USM Telephoto Lens, Black, Compatible…
The cheap, light Canon mirrorless reach.
94Bird
5· 865 ratings
$749.00
Price checked July 18, 2026
Buy on Amazon
Our verdict
HSReviewed by the BirdingPath team · Hilly Shore LabsUpdated July 18, 2026Price checked July 18, 2026
Synthesized from public specs and 321 buyer mentions. We research and analyze — we don't lab-test.
Get it if
Canon EOS R shooters wanting a light 1.8-lb 100-400mm telephoto for travel and handheld birding.
Skip it if
You shoot dawn, dusk, or deep shade; the slow f/5.6-8 aperture struggles in low light.
Type
Telephoto zoom lens
Compatibility
Canon RF (EOS R)
Key spec
100-400mm f/5.6-8
Weight
1.8 lb
Buyers praise
- Value for money
- Image Quality
- Quality
- Weight
Buyers flag
- Low Light Performance
The BirdingScore, unpacked
Our published method blends real owner satisfaction with in-category value. No hidden math.
Owner satisfaction93/100
Field value95/100
Specifications
- Type
- Telephoto zoom lens
- Compatibility
- Canon RF (EOS R)
- Key spec
- 100-400mm f/5.6-8
- Weight
- 1.8 lb
- Best for
- Lightweight travel telephoto
Specs from the manufacturer listing and public product data; confirm the current listing before buying.
Manufacturer's claims (from Canon)Show
- Compact, lightweight and high-image quality RF tele zoom lens, with a versatile zoom range of 100-400mm
- Optical Image Stabilizer with up to 5.5 Stops of shake correction
- Up to 6 stops of shake correction when paired with EOS R series cameras featuring In-Body Image Stabilizer (IBIS)
- Minimum focusing distance of 2.89 feet at 200mm and maximum magnification of 0.41x at 400mm
- High speed, smooth and quiet autofocus with Canon’s Nano USM
Marketing copy as listed by the manufacturer — not our assessment.
Others in Bird Photography Starter Gear
Canon RF 100-400mm
$749.00