What To Know
- RF lenses have a larger image circle than RF-S lenses, which means they can project an image that covers the full-frame sensor of an EOS R camera.
- If you have a full-frame EOS R camera and want the best possible image quality and compatibility, then RF lenses are the way to go.
- If you have an APS-C EOS R camera and are looking for a more affordable option, then RF-S lenses are a great choice.
Canon’s RF lens mount has revolutionized the world of photography and videography. With its larger diameter and shorter flange distance, the RF mount allows for the development of lenses that are smaller, lighter, and more powerful than ever before. However, within the RF lens lineup, there are two distinct categories: RF and RF-S. In this comprehensive guide, we will explore the differences between Canon RF and RF-S lenses, helping you make an informed decision about which ones are right for your needs.
Understanding the RF Lens Mount
The RF lens mount was introduced by Canon in 2018 alongside the EOS R full-frame mirrorless camera system. The RF mount features a 54mm diameter and a 20mm flange distance, which is significantly larger and shorter than the EF mount used on Canon’s DSLR cameras. This larger diameter allows for the transmission of more light and the use of larger rear lens elements, resulting in improved optical performance.
RF vs RF-S Lenses: Key Differences
RF and RF-S lenses are designed for different camera systems and have several key differences:
1. Compatibility
RF lenses are compatible with all Canon EOS R-series cameras, including full-frame and APS-C models. RF-S lenses, on the other hand, are designed specifically for Canon’s APS-C mirrorless cameras, such as the EOS R7 and EOS R10. They cannot be mounted on full-frame EOS R cameras.
2. Image Circle Size
RF lenses have a larger image circle than RF-S lenses, which means they can project an image that covers the full-frame sensor of an EOS R camera. RF-S lenses, on the other hand, have a smaller image circle that is designed to cover the APS-C sensor of an EOS R APS-C camera.
3. Sensor Coverage
Because of their larger image circle, RF lenses can be used on both full-frame and APS-C EOS R cameras. However, RF-S lenses can only be used on APS-C EOS R cameras.
4. Focal Length
RF and RF-S lenses are available in a wide range of focal lengths. However, some focal lengths are exclusive to one or the other system. For example, RF lenses are available in ultra-wide focal lengths such as 14mm and 16mm, while RF-S lenses are available in shorter focal lengths such as 18mm and 24mm.
5. Size and Weight
RF lenses are typically larger and heavier than RF-S lenses due to their larger image circle and more advanced optical designs. RF-S lenses are more compact and lightweight, making them ideal for travel and everyday photography.
6. Price
RF lenses are generally more expensive than RF-S lenses due to their larger size, more advanced optical designs, and wider compatibility. RF-S lenses offer a more affordable option for APS-C EOS R camera users.
Performance Comparison
In terms of optical performance, RF lenses generally offer superior image quality compared to RF-S lenses. This is because RF lenses have larger rear lens elements, which allows for better control of aberrations and distortions. However, RF-S lenses are still capable of producing excellent image quality, especially when paired with APS-C EOS R cameras.
Value for Money
When choosing between RF and RF-S lenses, it’s important to consider the value for money. RF lenses offer the best overall performance and compatibility, but they come at a higher price. RF-S lenses offer a more affordable option for APS-C EOS R camera users, and they still deliver excellent image quality.
Which Lenses Are Right for You?
The decision of whether to choose RF or RF-S lenses depends on your specific needs and budget. If you have a full-frame EOS R camera and want the best possible image quality and compatibility, then RF lenses are the way to go. If you have an APS-C EOS R camera and are looking for a more affordable option, then RF-S lenses are a great choice.
Recommendations
Canon’s RF and RF-S lens systems offer a wide range of options for photographers and videographers. RF lenses provide the best overall performance and compatibility, while RF-S lenses offer a more affordable option for APS-C EOS R camera users. By understanding the key differences between these two lens systems, you can make an informed decision about which ones are right for your needs.
Popular Questions
1. Can I use RF lenses on an RF-S camera?
No, RF lenses cannot be mounted on RF-S cameras.
2. Can I use RF-S lenses on an RF camera?
Yes, RF-S lenses can be used on RF cameras, but they will only cover the APS-C portion of the sensor.
3. Which lens system is better, RF or RF-S?
RF lenses offer better overall performance and compatibility, but they are more expensive. RF-S lenses are more affordable and are ideal for APS-C EOS R camera users.
4. What is the difference between a full-frame lens and an APS-C lens?
Full-frame lenses have a larger image circle that covers the full-frame sensor of a camera. APS-C lenses have a smaller image circle that covers the APS-C sensor of a camera.
5. Can I use EF lenses on RF cameras?
Yes, you can use EF lenses on RF cameras with the use of an EF-RF adapter. However, autofocus performance may be reduced.
