Canon RF 50mm F1.8 STM vs Canon RF 75-300mm F4-5.6 Telephoto: Spec Comparison
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When you compare the canon rf 75 300mm f4 5 6 telephoto vs rf50mm f1 8 stm lens, you are looking at two very different tools for your Canon RF mount camera. Both lenses are built for the EOS R system and use optimized coatings to reduce flare and ghosting. The main difference lies in their purpose. One is a compact prime lens with a wide aperture for portraits. The other is a telephoto zoom designed for distant subjects like wildlife or sports.
Key differences
| Aspect | Canon RF 50mm F1.8 STM Prime Lens | Canon RF 75-300mm F4-5.6 Telephoto Zoom Bundle |
|---|---|---|
| Focal Length | 50mm | 75-300mm |
| Maximum Aperture | f/1.8 | f/4-5.6 |
| Focus Motor | Gear-Type STM | DC autofocus motor |
| Weight | 5.6 ounces | 2.32 pounds |
| Minimum Focus Distance | not listed | 4.9 feet |
Which one should you choose?
Choose Canon RF 50mm F1.8 STM Prime Lens if
- You need a lightweight lens for portraits with a blurry background.
- You shoot in low light and want a wide aperture.
- You prefer a fixed focal length for simpler composition.
Choose Canon RF 75-300mm F4-5.6 Telephoto Zoom Bundle if
- You want to capture distant subjects like wildlife or sports.
- You need a zoom range to frame tight shots without moving.
- You are willing to carry more weight for longer reach.
Verdict: The RF 50mm F1.8 STM is the better choice for general use, portraits, and low-light situations due to its wide aperture and light weight. The RF 75-300mm F4-5.6 is the right tool if you specifically need to get closer to distant subjects. Choose based on whether you prioritize background blur or reach.
Prime Versus Telephoto Lens Showdown
Focal length range
The Canon RF 50mm F1.8 STM is a prime lens with a fixed 50mm focal length. This fixed perspective is ideal for standard views, portraits, and everyday shooting where you want to move your feet rather than zoom. In contrast, the Canon RF 75-300mm F4-5.6 is a telephoto zoom lens. It offers a variable focal length from 75mm to 300mm. This range allows you to extend your reach for distant subjects like wildlife or sports. The zoom capability provides versatility that the prime lens cannot match. You choose based on whether you need a fixed perspective or variable reach.
Aperture and light
Aperture controls how much light enters the lens and affects background blur. The Canon RF 50mm F1.8 STM features a large maximum aperture of f/1.8. This wide opening helps in low-light conditions and creates a shallow depth of field for creative background blur. The Canon RF 75-300mm F4-5.6 Telephoto has a variable maximum aperture of f/4 to f/5.6. These narrower apertures let in less light, making the prime lens better for dim environments. The f/1.8 opening also allows for more pronounced bokeh effects compared to the telephoto lens.
Weight and size
Portability matters when you carry gear. The Canon RF 50mm F1.8 STM is compact and lightweight. It weighs just 5.6 ounces and measures 1.59 inches in length. This makes it easy to carry all day. The Canon RF 75-300mm F4-5.6 Telephoto is significantly larger and heavier. It weighs over 2.32 pounds and extends to 5.75 inches in length. While still manageable, it is much bulkier than the prime lens. If you prioritize a small kit, the 50mm is the clear choice for minimal weight.
Autofocus system
Both lenses use different autofocus technologies. The Canon RF 50mm F1.8 STM uses a Gear-Type Stepping Motor (STM). This provides smooth and quiet continuous autofocus, which is beneficial for both photos and video recording. The Canon RF 75-300mm F4-5.6 Telephoto uses a DC autofocus motor. It also ensures smooth and precise focusing. While both offer reliable autofocus performance, the specific motor types differ. The STM in the prime lens is often noted for its quiet operation during video, while the DC motor in the zoom delivers precise tracking for moving subjects.
Included accessories
What you get in the box varies between these options. The Canon RF 50mm F1.8 STM is typically sold as the lens only or in a basic kit. It does not include extra filters or bags in its standard listing. The Canon RF 75-300mm F4-5.6 Telephoto is often available as a bundle. This specific listing includes the lens along with a 58mm 3-piece filter kit, a large camera lens bag, a lens cap keeper, and a cleaning kit. If you want immediate accessories without buying them separately, the bundle offers more value.
Minimum focus distance
How close you can get to your subject affects your composition options. The Canon RF 50mm F1.8 STM does not have a specified minimum focusing distance in the provided data. The Canon RF 75-300mm F4-5.6 Telephoto has a minimum focus distance of 4.9 feet. It also offers 0.25x magnification at this distance. This allows for surprisingly capable close-up subjects and tight framing for a telephoto lens. Without specific data for the prime lens, the telephoto lens has a defined capability for closer subject interaction.
Choose Your Lens Based On Use
You want shallow depth of field
The Canon RF 50mm F1.8 STM offers a wide f/1.8 maximum aperture. This large opening lets in more light for low-light scenes. It also creates strong background blur. The fixed 50mm focal length is perfect for portraits. You get smooth autofocus from the gear-type STM motor. This lens is compact and weighs only 5.6 ounces. It fits easily into your daily carry.
You shoot distant subjects like wildlife
The Canon RF 75-300mm F4-5.6 provides a 75-300mm zoom range. This telephoto reach helps you capture distant wildlife or sports action. The variable aperture of f/4-5.6 maintains a slim profile. It uses a DC autofocus motor for precise focusing. The lens weighs 2.32 pounds, making it manageable for travel. You can focus as close as 4.9 feet for tight framing.
You need versatility for travel
This bundle includes the lens, a cleaning kit, and a bag. The 75-300mm range covers many shooting scenarios without changing lenses. It is designed for both full-frame and APS-C cameras. The Super Spectra Coating reduces flare and ghosting. The compact build makes it a good travel companion. You get extended range without compromising portability. This setup saves space in your camera bag.
The products compared
Canon RF 50mm F1.8 STM Prime Lens
Best for: portraits and low-light photography
- Focal Length
- 50 millimeter
- Maximum Aperture
- F1.8
- Focus Type
- Stepping Motor (Gear-Type STM) AF
- Color
- Black
- Dimensions
- 1.59 × 2.72 × 2.72 inches
- Weight
- 5.6 ounces
View on Amazon: Canon RF 50mm F1.8 STM Prime Lens Affiliate link
The Canon RF50mm F1.8 STM is a compact prime lens with a fixed 50mm focal length and a wide F1.8 maximum aperture. Its Gear-Type STM focus motor delivers smooth, quiet autofocus for both photos and video. Weighing just 5.6 ounces, it pairs well with Canon EOS R series mirrorless bodies. This lens suits photographers who prioritize low-light performance and background separation over zoom flexibility.
Pros
- Wide F1.8 maximum aperture for low-light shooting
- Gear-Type STM motor for smooth, quiet autofocus
- Lightweight 5.6-ounce build for portable use
- Control ring for direct setting adjustments
Cons
- Fixed 50mm focal length limits zoom range
- No image stabilization listed in specifications
- Narrower field of view than telephoto options
Good fit if
- You want a lightweight lens for everyday carry
- You need fast autofocus for video recording
- You prefer shooting portraits or street photography
Skip if
- You require a zoom lens for versatility
- You need long-range telephoto capabilities
- You shoot in very bright daylight only
Verdict: The Canon RF50mm F1.8 STM Lens is a lightweight prime lens ideal for shooters who value aperture speed and portability over zoom range. It fits users who prioritize background blur and quiet autofocus for video work.
Canon RF 75-300mm F4-5.6 Telephoto Zoom Bundle
Best for: Reach-focused Canon RF photography
- Lens Mount
- Canon RF
- Focal Length
- 75-300mm
- Maximum Aperture
- f/4-5.6
- Sensor Format
- Full-frame and APS-C
- Focus Type
- DC autofocus motor
- Minimum Focusing Distance
- 4.9 feet
View on Amazon: Canon RF 75-300mm F4-5.6 Telephoto Zoom Bundle Affiliate link
The Canon RF 75-300mm f/4-5.6 is a telephoto zoom lens for Canon RF mount cameras. It covers 75-300mm with a variable aperture. The lens weighs 2.32 pounds and measures 5.75 inches long. It includes a cleaning kit and filters. You can focus as close as 4.9 feet. It works with full-frame and APS-C sensors.
Pros
- 75-300mm focal length for distant subjects
- Lightweight 2.32 pound build
- DC autofocus motor for smooth focusing
- Super Spectra Coating reduces flare
- 4.9 feet minimum focus distance
Cons
- Variable f/4-5.6 aperture limits light intake
- No image stabilization listed in specs
- Longer 5.75 inch length reduces compactness
Good fit if
- You need reach for wildlife or sports
- You shoot with Canon RF mount cameras
- You want a lightweight telephoto option
Skip if
- You require constant wide aperture
- You need built-in image stabilization
- You prefer prime lens sharpness
Verdict: The Canon RF 75-300mm f/4-5.6 Telephoto Zoom offers versatile reach for Canon RF users. It suits those prioritizing portability and distance over aperture speed.
Specifications side by side
| Spec | Canon RF 50mm F1.8 STM Prime Lens | Canon RF 75-300mm F4-5.6 Telephoto Zoom Bundle |
|---|---|---|
| Lens Mount | not stated | Canon RF |
| Focal Length | 50 millimeter | 75-300mm |
| Maximum Aperture | F1.8 | f/4-5.6 |
| Sensor Format | not stated | Full-frame and APS-C |
| Focus Type | Stepping Motor (Gear-Type STM) AF | DC autofocus motor |
| Minimum Focusing Distance | not stated | 4.9 feet |
| Configuration | not stated | Bundle |
| Color | Black | not stated |
| Aperture | f/1.8 | not stated |
| Lens Type | not stated | Zoom |
| Dimensions | 1.59 × 2.72 × 2.72 inches | 5.75 × 4.09 × 4.09 inches |
| Weight | 5.6 ounces | 2.32 pounds |
| Size | 50mm | not stated |
| Model | 4515C002 | 7155C005_AG9RE_1 |
Frequently asked questions
Which lens is lighter for travel?
The Canon RF 50mm F1.8 STM is significantly lighter. It weighs only 5.6 ounces. In contrast, the Canon RF 75-300mm F4-5.6 Telephoto Zoom weighs 2.32 pounds. You will notice this difference when carrying gear all day. The prime lens is easier to pack in a small bag.
Does the 50mm lens have a zoom function?
No, the Canon RF 50mm F1.8 STM is a prime lens. It has a fixed 50mm focal length. You cannot zoom in or out with this lens. You must change your framing by moving your body. This design keeps the lens small and lightweight compared to zoom options.
Is the telephoto lens good for portraits?
The Canon RF 75-300mm F4-5.6 Telephoto Zoom is designed for reach, not typically for portraits. It offers versatile distance for subjects far away. The Canon RF 50mm F1.8 STM is better for portraits. Its f/1.8 aperture creates strong background blur. This prime lens is ideal for standard portrait views.
How big is the Canon RF 50mm lens?
The Canon RF 50mm F1.8 STM is compact. It measures 1.59 inches in length. The width and height are both 2.72 inches. This small form factor makes it very portable. It fits easily into most camera bags without taking up much space.
What mount do both lenses use?
Both lenses use the Canon RF Mount. This mount is designed for Canon EOS R system cameras. The Canon RF 75-300mm F4-5.6 Telephoto Zoom explicitly lists this mount. The Canon RF 50mm F1.8 STM is also built for the same RF mount. They are compatible with your RF camera body.
Which lens is better for low light?
The Canon RF 50mm F1.8 STM is better for low light. It features a wide f/1.8 maximum aperture. This large opening lets in more light than the telephoto lens. The Canon RF 75-300mm F4-5.6 Telephoto Zoom has a variable aperture. The 50mm lens helps you shoot in darker environments more effectively.
Is the telephoto lens a bundle?
Yes, the Canon RF 75-300mm F4-5.6 Telephoto Zoom is available as a bundle. The product data lists its configuration as a bundle. This often includes accessories or packaging extras. The Canon RF 50mm F1.8 STM is listed as a standalone prime lens. Check the specific listing for included items.