Best Canon EOS 50D Memory Cards

By Nathaniel Stephan
Last Updated: October 27, 2019
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Best Canon EOS 50D Memory Cards

The maximum size Compact Flash memory card that can be used in the Canon EOS 50D is 137GB. Due to what is available, that means the largest card you can use is 128GB.

The size limit is due to the original CF card spec. Another limitation can be the FAT32 file system. Some older operating systems capped the partition size at 32GB.

If you don't want to read explanations of specs, my CompactFlash card recommendation is:

SanDisk Extreme 32GB CF Card

  • Read speeds up to 120MB/s.
  • Write speeds up to 85MB/s.
  • Water, x-ray, & shock proof.

Once you have a working CF card, expand your options with another lens. Check out the 7 Best Canon 50D lenses.

The best value CF card is likely to be either 32GB or 16GB. Larger or smaller cards are going to be more expensive per GB.

A professional card will not add a noteworthy amount to the price. Having a high-speed card will remove the need to replace the card with a camera upgrade.

Recommended CF Cards

SanDisk Extreme 32GB Compact Flash Card

  • Read speeds up to 120MB/s.
  • Write speeds up to 85MB/s.
  • Sustained data recording of 20MB/s.
  • Water, x-ray, & shockproof.

SanDisk Ultra 16GB CompactFlash Card

  • Speeds up to 50MB/s.
  • Excellent reliability and value.
  • Ideal for mid-range DSLRs.

Lexar Professional 1066x 32GB CompactFlash Card

  • Transfer speeds up to 160MB/s.
  • Video Performance Guarantee sepc VPG 65.
  • Limited lifetime warranty.

SD to Compact Flash Card Adapter

  • Cheap option if you already have an SD card.
  • Supports SD, SDHC, SDXC cards with a 128GB max.
  • CF Type 1 size.
  • A MicroSD version is available.

Card Reader

UGREEN CF Card Reader

The UGREEN 4-in-1 card reader is what I have been using for my Compact flash cards.

The UGREEN reader connects over USB 3.0. Transfer speeds over USB 3.0 will have higher transfer rates than the Canon 50D.

The card reader also supports the following cards:

  • CompactFlash Cards
  • SD, SDHC, & SDXC Cards
  • Memory Stick (MS), MS Pro, MS PRO-HG, & MS XC DUO
  • MicroSD, Micro SDHC, & Micro SDXC Cards

Compact Flash Card Types

Compact Flash cards come in two physical sizes. They are called Type I or Type II.

The difference between the types is the thickness of the cards. The length and width of the CF cards are the same.

  • Type I - 3.3mm thick
  • Type II - 5mm thick

The Type II standard gave enough room for a Microdrive to be used in the Canon 30D. A Microdrive was just a compact mechanical harddrive.

Compact Flash cards had small capacities when they were initially released. Microdrives were a solution that allowed for larger amounts of storage.

Microdrives are no longer produced. Due to their mechanical nature, the drives had a high failure rate.

Some Compact Flash adapters make use of the Type II specification. An adapter can make it possible to use a MicroSD or SD card in a Compact Flash slot.

Avoiding Card Read Errors

The most wide-spread problem with cameras that use CF cards are damaged card slot pins. When a pin is bent, you may see any of the following errors:

  • Err 02
  • Err CF
  • No CF

If you want to avoid damaged pins, do not ever force a Cf Card into the Canon EOS 50D. The extra room for a Type II card makes it possible for a Compact Flash card to become misaligned.

If the CF card will not easily slide into the slot, remove it and check the orientation of the card. Also, check to see if the card is damaged.

If there is no damage, carefully position the card and try inserting it again.

Related Cameras

The best Canon EOS 50D memory card can also be used in the following cameras:

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