Request a product

Canon RF 75–300mm F4–5.6 vs Canon RF 800mm F11 IS STM

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

CanonRF 75–300mm F4–5.6CanonRF 800mm F11 IS STM
Overview
ReleasedMay 2025July 2020
Optics
Lens typeZoomPrime
Focal length75–300 mm800 mm
Maximum aperturef/4–5.6f/11
Minimum aperturef/32–45f/11
Optical constructionThirteen elements in nine groups; Canon states the optical design is adapted from the EF 75–300mm F4–5.6 IIIEleven elements in eight groups
Special elements–Gapless dual-layer diffractive optical element
CoatingsSuper Spectra; no fluorine coating–
Aperture detailMaximum f/4 at 75 mm and f/5.6 at 300 mm; minimum f/32 and f/45 respectivelyFixed f/11 aperture; cannot be stopped down
DiaphragmSeven bladesNo aperture blades
Angle of viewFull-frame diagonal 32°11′–8°15′; horizontal 27°–6°50′; vertical 18°11′–4°35′2°35′ horizontal, 1°40′ vertical and 3°05′ diagonal on full frame
Mount and compatibility
MountsCanon RFCanon RF
Image circleFull frameFull frame
CompatibilityCanon RF mount for full-frame and APS-C EOS R cameras; 120–480 mm equivalent field of view on Canon APS-CCanon RF mount for full-frame and APS-C EOS R cameras; EOS R, Ra and RP require compatible firmware
Teleconverter supportNot compatible with RF extenders (The-Digital-Picture)RF 1.4× gives 1120 mm at f/16 and 0.19× maximum magnification; RF 2× gives 1600 mm at f/22 and 0.28×. Canon lists autofocus and stabilisation as supported with both; performance depends on camera and light levels
Focus and stabilisation
AutofocusYesYes
Minimum focus distance1.5 m6 m
Maximum magnification0.25×0.14×
Optical stabilisationNoYes
Autofocus detailDC motor autofocus; no full-time manual focus override (Digital Camera World)Lead-screw STM autofocus; Canon states approximately 40% horizontal × 60% vertical AF coverage in its original EOS R compatibility notes
Focus distance detail1.5 m minimum focus; front element and focus ring rotate during focusing (Digital Camera World and The-Digital-Picture)Minimum focus 6 m; full-range or 20 m–infinity focus limiter (Cameralabs)
Magnification detail0.06× at 75 mm and 0.25× at 300 mmMaximum 0.14× without an extender
Stabilisation detailNo lens optical stabilisationUp to four stops optical stabilisation under CIPA testing with EOS R
Video featuresSubstantial focus breathing in The-Digital-Picture's test–
Design
Dust and moisture resistant–No
Filter diameter58 mm95 mm
Maximum diameter71.2 mm101.6 mm
Length146.1 mm281.8 mm
Weight507 g1,260 g
ControlsManual focus and zoom rings, AF/MF switch; no custom control ring (The-Digital-Picture)Separate manual focus and customisable control rings; focus limiter, AF/MF and stabiliser switches
Zoom designExtending zoom barrel; further extension and front rotation during focusing (Digital Camera World)Prime lens with a retracting storage barrel; extend and lock the barrel before shooting
Filter detail58 mm front thread rotates during focusing–
Weather resistanceCanon UK's table lists dust/moisture resistance, but Digital Camera World and The-Digital-Picture both report no weather sealingNo dust or moisture resistance; no rubber mount seal (Cameralabs)
Dimensions detail71.2 mm maximum diameter × 146.1 mm retracted length101.6 mm maximum diameter; 281.8 mm retracted length or 351.8 mm when extended for shooting
Weight detailApproximately 507 g lensApproximately 1260 g lens
Tripod mount–Built-in tripod mounting thread; no rotating collar (Cameralabs)
Lens hoodOptional ET-60 hood, not includedOptional ET-101 hood; not included
In the boxLens, E-58 II lens cap, RF dust cap and user manualLens, E-95 cap, RF dust cap and user manual kit
Release detailMay 2025 release confirmed retrospectively by Canon's February 2026 press release and Canon Camera MuseumJuly 2020 marketed month in Canon Camera Museum

More comparisons