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Canon EOS R100 Mirrorless Camera w/RF-S 18- vs Sony a7 IV Full Frame Mirrorless

Updated July 2026 — Canon EOS R100 Mirrorless Camera w/RF-S 18- wins on bundle, Sony a7 IV Full Frame Mirrorless wins on price and af points.

The Canon EOS R100 is a budget-friendly option with a comprehensive bundle, while the Sony a7 IV offers superior image quality and advanced features for professionals.

Why Canon EOS R100 Mirrorless Camera w/RF-S 18- is better

Price

Canon is significantly cheaper at $599.

Bundle

Includes a comprehensive accessory bundle.

Weight

Lightweight design for casual users.

Why Sony a7 IV Full Frame Mirrorless is better

Image Quality

Higher resolution with 33MP full-frame sensor.

Video Features

4K 60p video with advanced capabilities.

Autofocus

Superior autofocus system with 759 points.

Overall score

Canon EOS R100 Mirrorless Camera w/RF-S 18-
70
Sony a7 IV Full Frame Mirrorless
90

Specifications

SpecCanon EOS R100 Mirrorless Camera w/RF-S 18-Sony a7 IV Full Frame Mirrorless
Sensor TypeAPS-CFull Frame
Max ISO25600204800
Video Resolution4K 24p4K 60p
Continuous Shooting6.5 fps10 fps
ConnectivityWi-Fi, BluetoothDual Card Slots, Wi-Fi

Dimension comparison

Canon EOS R100 Mirrorless Camera w/RF-S 18-Sony a7 IV Full Frame Mirrorless

Overview of the Canon EOS R100 and Sony a7 IV

The Canon EOS R100 is priced at $599.00, making it about 71% cheaper than the Sony a7 IV, which costs $2049.00. This significant price difference positions the Canon as a more budget-friendly option for those seeking a mirrorless camera. The Canon offers a comprehensive bundle that includes a variety of accessories, whereas the Sony model is focused on delivering high-end features primarily for advanced users.

Image Quality and Sensor Performance

The Canon EOS R100 features a 24.2MP APS-C CMOS sensor, which is quite capable for most photography needs, especially for casual users. In contrast, the Sony a7 IV boasts a 33MP full-frame Exmor R sensor, providing higher resolution images that will appeal to professionals and serious enthusiasts. This difference in sensor size and resolution means that the Sony can capture more detail and perform better in low-light conditions, making it a superior choice for those aiming for high-quality, professional-grade images.

Video Capabilities

When it comes to video, the Canon EOS R100 can shoot 4K at 24 frames per second and Full HD at 60 frames per second. While this is adequate for many users, the Sony a7 IV takes it a step further by offering up to 4K 60p 10-bit video with full pixel readout, significantly enhancing video quality. Additionally, the Sony's advanced movie features, such as Focus Map and Breathing Compensation, make it a standout choice for videographers looking for cutting-edge technology.

Autofocus and Speed

The Canon EOS R100 employs Dual Pixel CMOS AF with 143 AF zones, which provides good autofocus performance for most situations. However, the Sony a7 IV offers a more advanced autofocus system with 759 phase detection points, which cover 94% of the frame. This allows for incredibly precise and fast autofocus, making the Sony a better option for capturing fast-moving subjects, such as in sports or wildlife photography.

Build Quality and Usability

One of the key advantages of the Canon EOS R100 is its lightweight and compact design, making it user-friendly for beginners and casual photographers. It includes a variety of accessories in its bundle, like a tripod and filters, enhancing its overall value. On the other hand, the Sony a7 IV, while slightly heavier, is designed with professional use in mind, featuring robust build quality and advanced controls that cater to experienced users who demand a high level of control over their photography.

Connectivity and Storage

Both cameras offer excellent connectivity options, but there are differences worth noting. The Canon EOS R100 supports Wi-Fi and Bluetooth, making it easy to share images and control the camera remotely. The Sony a7 IV, however, has a more advanced connectivity suite, including dual card slots compatible with UHS-II SD cards and CFexpress Type A, allowing for faster data transfer and better storage options. This feature is particularly valuable for professionals who require high-speed data management.

Price and Value

The Canon EOS R100's price of $599.00 provides significant value, particularly given the extensive accessory bundle included with the purchase. In contrast, the Sony a7 IV is priced at $2049.00, representing a larger investment aimed at serious photographers and professionals. While the Sony offers superior performance and features, the Canon presents an attractive option for those who may not need the highest specifications but still want a capable camera.

Which should you buy?

Deciding between the Canon EOS R100 and the Sony a7 IV largely depends on your needs and budget. If you are a beginner or a casual photographer looking for a highly affordable option with a comprehensive accessory bundle, the Canon EOS R100 is an excellent choice. However, if you are a professional or an enthusiast seeking top-tier image quality, advanced video capabilities, and superior autofocus performance, then the Sony a7 IV is worth the investment despite its higher price tag. Ultimately, both cameras cater to different user profiles, making the choice a matter of personal preference and requirements.