lensotterCanon · RF · prime
RF45mm F1.2 STM
An everyday prime with a bright maximum aperture.
Canon price at last check$429.99USD · checked 2026-10-18Check price at Amazon ↗
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Uses to explore
What works well
- 45mm gives you a fixed, consistent framing option.
- f/1.2 admits more light than a typical kit zoom and supports shallow depth of field.
- Approximately 346g keeps the lens easy to carry.
The tradeoffs
- No zoom: change your position or switch lenses to change framing.
- No optical stabilization; support, fast shutter speeds or in-body stabilization may help.
The useful details
- Mount / coverage
- Canon RF mount · full-frame coverage
- Lens type
- Prime (fixed focal length)
- Focal length
- 45mm
- Maximum aperture
- f/1.2
- Optical stabilization
- No
- Weight
- 346g
Will it fit my camera?
Fits both full-frame and APS-C Canon EOS R cameras directly. On APS-C, the view is narrower: multiply the focal length by 1.6 for the full-frame equivalent angle of view.
Not for Canon EF, EF-M or DSLR camera bodies.
Specifications: Canon’s specification record ↗. Price: Canon USA ↗, checked 2026-10-18, before tax and shipping. Status at check: available to order. Prices may include temporary sales; confirm current price and stock before purchase.
Suitability scores and explanations are editorial judgments, not Canon ratings or firsthand test results.