Panasonic GH3 Memory Card Compatibility

By Nathaniel Stephan
Last Updated: October 28, 2019
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Panasonic SD Memory Card Compatibility

SDXC, SDHC, and SD memory cards are produced to operate with the Panasonic GH3. For video and continuous shooting, it is essential the memory card you use can write data fast enough.

You can ruin the performance of your camera by using the wrong SD card.

If you are in a rush, here's the best SD card you can buy for the Panasonic GH3:

SanDisk Extreme Pro 128GB UHS-I SD Card

SanDisk Extreme Pro 128GB SD Card

  • Best value for the money.
  • Capacities from 32 GB to 2TB.
  • Transfer speeds up to 170 MB/s.
  • Class 10 & UHS-I
  • Temperature Proof, Water Proof, Shock Proof, and X-ray Proof.

Best SD Cards

Like all things tech, the price of SD cards has greatly fallen since the release of the Panasonic GH3.

With the price range getting quite cheap, it would not make financial sense to pick anything besides a professional-level SD card.

The best SD cards I own have been the SanDisk Extreme Pro, Lexar Professional, and PNY Elite Performance models. I have under no circumstances encountered a card failure or unusable data with any of those SD cards.

Every complication I have experienced has been with low-cost unbranded memory cards. Attempting to save a buck isn't worth it if your GH3 is likely to have trouble.

If you want to save some money, purchase a smaller storage capacity SD memory card from a quality supplier. By doing this, you'll know your photographs are secure on the SD card.

Recommended SD Cards

SanDisk Extreme Pro 128GB UHS-I SD Card

SanDisk Extreme Pro 128GB SD Card

  • Best value for the money.
  • Capacities from 32 GB to 2TB.
  • Transfer speeds up to 170 MB/s.
  • Class 10 & UHS-I
  • Temperature Proof, Water Proof, Shock Proof, and X-ray Proof.
PNY Elite Performance SDXC 128GB Memory Card

PNY Elite Performance 128GB SDXC Card

  • Lower priced card.
  • Transfer speeds up to 95 MB/s.
  • Class 10 & UHS-I.
  • Magnet Proof, Shock Proof, Temperature Proof, Waterproof.
Lexar Professional 1066X 128GB SD UHS-I Memory Card

Lexar Professional 1066x 128GB SDXC UHS-I Card

  • Lexar Professional Silver Card.
  • Transfer speeds up to 160 MB/s.
  • Class 10 & UHS-I.
  • Includes Lexar Recovery Tool Software.
  • Designed for durability in harsh conditions.

Panasonic GH3 SD Card Compatibility

Only SD, SDHC, and SDXC cards can be used by the Panasonic GH3. Check to make sure that your camera is using the most up to date firmware installed.

The newest memory cards, SDUC (Secure Digital Ultra Capacity), are not usable in the GH3.

Four different kinds of Secure Digital (SD) cards that you should be familiar with. They are separated by their capacity.

  • SD (Secure Digital) - 128MB to 2GB.
  • SDHC (Secure Digital High Capacity) - 4GB to 32GB.
  • SDXC (Secure Digital eXtended Capacity) - 64GB to 2TB.
  • SDUC (Secure Digital Ultra Capacity) - 4TB to 128TB.

Image Capacity

Panasonic SD Memory Card Contacts

Listed below is a quick estimation of just how many large JPEGs pictures you can expect to store on a memory card:

  • 16GB - 4,640 images
  • 32GB - 9,280 images
  • 64GB - 18,560
  • 128GB - 37,120

Speed, Class, & UHS Ratings

Card Speed

The speed rating of an SD memory card is classified by the continuous read and write speeds of the card. SD memory card continuous write speed is essential for video as well as continuous shooting.

A slow memory card can decrease the number of continuous photos the Panasonic GH3 can take. This is because the buffer in the camera is not able to write to the memory card quickly enough.

When recording video, a slow SD card can cause a sudden end to shooting. The video file may also be corrupted. If you are going to capture video, it is important the card you use meets the required minimum continuous write speed for video.

Read speed is nice to have for file transfers to a computer. If you have cards that are full, a card with a fast transfer speed will cut down on the time it takes the transfer to finish.

Speed Class Rating

Example of where to find SD Card Speed Class
The 10 inside of the C means the card is Class 10.

An SD memory card receives a Class rating according to its sustained write speed. SD cards that have a minimum write speed of at least 10MB/s are labeled as Class 10.

  • Class 2 - 2MB/s
  • Class 4 - 4MB/s
  • Class 6 - 6MB/s
  • Class 8 - 8MB/s
  • Class 10 - 10MB/s or faster

Every brand-name SD card that you can find will be rated Class 10. To locate the class rating of a memory card, try to find a number inside of a C on the sticker.

Ultra High Speed (UHS)

Example of an SD memory card with a UHS-I rating.
The UHS rating of a card can be determined by a Roman numeral I, II, or III on the label of the card.

The Ultra High Speed bus (UHS) is available in SDUC, SDXC, and SDHC memory cards. UHS allows offers a way to improve file transfer rates.

Three different versions have been created. The versions are UHS-I, UHS-II, and UHS-III.

Look at the front of the SD card to find the UHS rating of an SD memory card. If the memory card has UHS, a Roman numeral I, II, or III will be on the front of the memory card.

  • UHS-I - Maximum transfer rate of 104 MB/s
  • UHS-II - Maximum transfer rate of 312 MB/s
  • UHS-III - Maximum transfer rate of 624 MB/s

Related Cameras

If you found you had to choose one, the 128GB SanDisk Extreme Pro is the best memory card for the Panasonic GH3. You're now prepared for any future camera you own.

Listed below are more posts on cameras related to the GH3:

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