Canon EOS R5 Mark II and SanDisk Card Compatibility Issues: Choosing the Right Memory Card | Knowledge #192
Cover photo by TATSU
In photography, memory cards are one of the most crucial components for storing shooting data. However, the recently announced compatibility issues between the Canon EOS R5 Mark II and certain SanDisk Extreme PRO SDXC UHS-II V60 cards have highlighted the importance of choosing the right card.
There have been reports that using specific memory cards may result in corrupted still images, making it essential to understand how to select safe and reliable cards and protect your shooting data.
Photo by スサダイキ
Background and Causes of Compatibility Issues
Canon officially announced that the 64GB, 128GB, and 256GB models of the SanDisk Extreme PRO SDXC UHS-II V60 series may result in still images being "corrupted or abnormally recorded" when used with the EOS R5 Mark II. Despite these cards meeting the camera's UHS-II slot specifications, technical incompatibilities are causing issues. Notably, the 512GB and 1TB models of the same series have not reported problems.
SanDisk offers a replacement guarantee for the affected cards, but specific technical reasons have not been disclosed. This case highlights that not all cards from the same brand are fully compatible.
How to Choose Safe Memory Cards
To maximize your camera's performance, selecting a highly reliable memory card is essential. First, choose a card that matches your camera's slot specifications. Check the supported standards like UHS-I, UHS-II, or CFexpress, and use a card that corresponds to these.
It's also important to consider transfer speeds based on your shooting style. High-speed writing is required for fast continuous shooting or high-resolution video recording. Additionally, referring to the manufacturer's recommended card list can be effective.
Photo by TakaBo-
Manufacturers like Canon and SONY publish lists of cards confirmed to be compatible with their products. Checking these in advance can help avoid compatibility issues.
Protecting Your Shooting Data
In addition to choosing the right memory card, daily habits to safely protect your shooting data are crucial. When purchasing a new memory card, format it in the camera before shooting and test shoot to ensure data is saved correctly. After shooting, quickly back up to a PC or cloud storage to prepare for potential data corruption or card loss.
Photo by iriko
Furthermore, instead of relying on a single large-capacity card, distributing data across multiple cards is also effective in reducing risks. By incorporating these simple yet effective measures, you can reliably protect your valuable works and memories.
