Canon 300mm F4 L Is Comparison - April 2026
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you9.6
1CanonCanon RF100-400mm F5.6-8 is USM, Telephoto
Why we love it
Lightweight for easy handling and portability.
Excellent zoom range for distant subjects.
Effective image stabilization for sharp photos.
Main highlights- Up to 6 stops of shake correction when paired with EOS R series cameras featuring In-Body Image Stabilizer (IBIS)
- Optical Image Stabilizer with up to 5.5 Stops of shake correction
- 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
- Compact, lightweight and high-image quality RF tele zoom lens, with a versatile zoom range of 100-400mm
9.3
2CanonUSED Canon 70-300mm F4-5.6 L IS USM Lens
Why we love it
Impressive 34 300mm focal range.
Compact size manual lock switch.
Quick focus magnification.
Main highlights- Travel friendly size, packs small and stays small with a manual lock switch on side of barrel. Note: lens can only be locked at 70mm range as it is for travel only. Focal Length & Maximum Aperture: 70-300mm 1:4-5.6
- Suitable for Nature/ landscape/ sports/ travel photography
- Note that when the inner lens is fully extended (300mm) it's approximately 8.25" in overall length. The 5.6" measurement is at the 70mm range when lens is closed/locked.
- Impressive focal range.Diagonal Angle of View 34° - 8° 15'
- Focus Adjustment Type - lens extension via inner focusing focus cam, plus floating mechanism.Closest Focusing Distance: 1.2m/ 3.9ft
9.2
3CanonCanon RF100-300mm F2.8 L is USM, RF Lens, Mirrorless, Telephoto Zoom, Optical Image Stabilization, Professional, High-end Video, Still Images White
Main highlights- Telephoto zoom lens that builds on the legacy of the popular EF300mm f/2.8 lens.
- Optical image stabilization — up to 5.5 stops* of shake correction. Up to 6.0 stops Coordinated IS when paired with EOS R series cameras featuring In-Body Image Stabilizer (IBIS)
- Fast f/2.8 maximum aperture throughout the whole zoom range for great control over depth of field, bokeh, and low-light shooting with fast and reliable autofocus.
- Excellent image quality: highlights include one flourite lens, and 4 UD (Ultra-low Dispersion) glass elements, flourine coating, and Canon SSC (Super Spectra Coating) to minimize ghosting and flare.
- Built-in function/focus preset selector switch allows you to program a focus preset recall into the buttons at the front of the lens.
Our ranking system
At bestchoice.com, our team curates a selection of top products from a vast array available online, using a sophisticated ranking system based on carefully defined criteria.While traditional hands-on testing has its merits, our use of AI technology offers distinct advantages. AI allows us to process and analyze vast amounts of data from multiple sources, providing a comprehensive view that goes beyond what manual testing can achieve. This approach enables us to deliver insights that are aligned with current trends and consumer preferences, ensuring our reviews are both relevant and up-to-date.






