magazine
2025.10.05

Everything Photography Enthusiasts Should Know About SD Cards | Knowledge #355

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Cover photo by 朽蓮 kyu-ren

When taking photos with a camera, the SD card is just as important as the lens or sensor. Since your photos are stored here first, choosing the wrong card can lead to data corruption or even prevent the shutter from working.

This guide provides essential knowledge and practical tips about SD cards for those who want to fully enjoy photography.

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Photo by kazuki

Speed Classes That Transform Your Photography Experience

The performance of an SD card is determined by its "speed class." For video recording, a V30 or higher is recommended, while UHS-II is ideal for continuous RAW shooting.

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Photo by junna

To maximize your camera's performance, pay attention to the card's transfer speed. Choosing based solely on price is not a smart approach.

Why Reliability Matters More Than Capacity

While large capacities are convenient, the reliability of the brand is even more critical. Cheap cards from unknown manufacturers carry the risk of sudden failure. It's wise to use multiple cards and back up your data regularly. Especially during trips or events, peace of mind about your data can fuel your creative drive.

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Photo by IORI Tanigaki

Did You Know SD Cards Have a Lifespan?

Surprisingly, SD cards have a limit on the number of write cycles. Cards that have been used for years may suddenly fail.

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Photo by makitomo15

Formatting your card before shooting and replacing it periodically can prevent data loss. Proper card management is part of your love for photography.

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