Canon RF 50mm f/1.8 Review: The Best First Lens for the R50 and R10

The core features and specifications

If you own (or plan to own) a Canon APS-C RF camera like the R50, R7, R10, or R100, one of the most affordable and versatile lenses you can add to your kit is the Canon RF 50mm f/1.8. Though originally designed for full-frame RF cameras, this lens works exceptionally well on crop bodies too, effectively giving you an ~80mm portrait focal length.

Why it works well on Canon APS-C

Portrait-Friendly Focal Length:

• On APS-C bodies, 50mm becomes ~80mm, hitting a sweet spot for portraits, headshots, and product photography.
• Gets you tighter framing than the standard kit lens, which usually tops out around 45mm.

Wide Aperture (f/1.8):

• Lets in plenty of light for indoor or evening shoots, reducing the need for high ISO.
• Yields dreamy bokeh and subject separation, perfect for those shallow depth-of-field shots.

Light & Compact:

• Weighing only about 5.6 oz, it pairs effortlessly even with lightweight APS-C cameras like the R50 or R100 .
• Great for travel or everyday carry when you want a small, unobtrusive prime lens.

Easy Upgrade from Kit Lens:

• If you own a kit lens (e.g., 18–45mm on APS-C), the 50mm f/1.8 offers a more creative lens for portraits, low-light, and shallow DOF.
• At $180, it’s among the most affordable ways to experiment with faster apertures.

The strengths and tradeoffs

Pros

• Superb Value: One of the cheapest ways to achieve that classic “nifty fifty” look on APS-C.
• Great Image Quality: Sharp enough for most uses, especially when stopped down a bit to f/2.8.
• Compact & Lightweight: Hardly notice it on smaller cameras like the R50 or R100.
• Bright Aperture for Low Light: f/1.8 helps reduce noise by allowing lower ISO settings.

Cons

• No Dedicated AF/MF Switch: Must switch focus modes via the camera menu, slower to toggle quickly.
• Plastic Build & Not Weather-Sealed: Feels solid for the price, but lacks robust sealing or premium finish.
• Slight Softness at f/1.8: Corners and edges can be a touch soft wide open, but typical for an entry-level fast prime.

Who I would recommend it to

• Beginner Photographers: Perfect first upgrade from the kit lens to explore portraiture and low-light shooting.
• Budget-Conscious Creators: Want that shallow-depth-of-field “look” without spending $300+ on other RF primes.
• Portrait & Product Shooters: 80mm effective focal length is ideal for capturing flattering portraits or crisp product photos.

Who Might Skip It

• Need Weather Sealing: Look for higher-end L-series primes or third-party sealed options.
• Video Vloggers: If you mostly shoot wide, a 50mm on APS-C may feel too tight for handheld vlogging.

For around $180, the Canon RF 50mm f/1.8 is arguably the best “nifty fifty” you can buy for Canon’s APS-C mirrorless cameras. It’s an affordable gateway to fast-aperture photography, delivering pleasing bokeh, strong low-light performance, and a great portrait focal length. If you want a small, lightweight lens that can elevate your portraits, product shots, and general photography, look no further than this humble 50mm prime.