The Sony A450 has dual card slots, each with its own card format. One memory card slot can use SDHC and SD cards. The second card slot uses Sony PRO-HG Duo and PRO Duo cards.
SDHC cards are supported, this means the biggest SD memory card that could be used is 32GB. The PRO Duo and PRO-HG Duo slot uses 32GB and smaller memory cards.
Only one of the two-card slots is accessible at a time. There is a switch inside the card door that enables you to choose which card slot to use.
PRO Duo memory cards are a proprietary memory format controlled by Sony. Because of this, SD memory cards are a better value and frequently provide better performance than PRO Duo memory cards.
In a hurry? My recommendation is this SD memory card paired with A450:
64GB or larger cards are not compatible with the camera.
Need a new lens for your camera? Go look at the 6 Best Sony A450 Lenses.
Best SD Cards
SanDisk, Lexar, and PNY are brands that produce the best SD cards. The best SD cards I have owned have been the SanDisk Extreme Pro SD cards.
You do not need to purchase a card made by SanDisk for your Sony A450. Just make sure the name sounds impressive. That will make sure you get fast transfer speeds, dust resistance, and more professional features.
I have not had problems with PNY Elite Performance or Lexar Professional memory cards.
The problems I have encountered with memory cards has been when inexpensive generic brands were used. A low-cost card increases the possibility of corrupted data or card errors.
If you are looking to save money, don't buy a cheap card. You will avoid problems by purchasing a name brand card with a reduced storage capacity.
Recommended SD Cards
- Best value for the money.
- Capacities from 16 GB to 128 GB.
- Transfer speeds up to 80 MB/s.
- Class 10.
- High speed card.
- Capacities from 16 GB to 1 TB.
- Transfer speeds up to 95 MB/s.
- Class 10.
- High quality card.
- Transfer speeds up to 95 MB/s.
- Class 10.
Sony A450 SD Card Compatibility
SD and SDHC cards are compatible with the Sony A450. Use an SD card to get the optimal overall performance out of the camera.
The newest SDXC and SDUC memory cards cannot be used in the A450.
Currently, there are four specifications of Secure Digital (SD) memory cards. New memory specs add features that provide for greater memory capacity and increased transfer rates.
- Secure Digital (SD) - 128MB to 2GB.
- Secure Digital High Capacity (SDHC) - 4GB to 32GB.
- Secure Digital eXtended Capacity (SDXC) - 64GB to 2TB.
- Secure Digital Ultra Capacity (SDUC) - 4TB to 128TB.
SD Card Speed
Speed ratings of an SD memory card is based on the sequential read and write speeds. Card write speed is very important for video and continuous shooting.
Slows SD cards can reduce the number of continuous frames the Sony A450 can take. This is because the camera's buffer is not able to write to the memory card quickly enough.
With video, a slow memory card can cause the recording to stop. The video file may also end up being corrupted. If you are going to record video, it is important the memory card you use meets the minimum requirements of the camera.
Card read speed is important for transferring files to a computer or laptop. If you have cards that are full, an SD card with a fast read speed will reduce the transfer time.
Speed Class Rating
A memory card gets a Class rating based on the sustained write speed of the card. Class 10 is the highest rating, even though cards exist that are many times faster.
Here you can see a list of the Classes and the associated lowest transfer rates:
- Class 2 - 2MB/s
- Class 4 - 4MB/s
- Class 6 - 6MB/s
- Class 8 - 8MB/s
- Class 10 - 10MB/s or faster
Nearly every SD memory card worth owning for the Sony A450 will be a Class 10 memory card. In the time period since the camera was introduced, SD memory cards have gotten so much faster.
Ultra High Speed (UHS)
The Ultra High Speed (UHS) bus is found in SDUC, SDXC, and SDHC cards. UHS makes it possible for faster data transfer rates.
There are three separate versions. They are UHS-I, UHS-II, and UHS-III.
You can determine the UHS rating of an SD memory card by reading the label. If there is a Roman numeral I, II, or III on the front of the SD card, that is the UHS rating of your 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
Sony A450 PRO Duo Card Compatibility
There is one memory card slot for PRO Duo and PRO-HG Duo memory cards. PRO-HG signifies the memory card may have read speeds up to 50MB/s and a 15MB/s minimum write speed.
PRO Duo cards with a total of 32GB or have a lower capacity will be usable in the A450.
PRO Duo cards are usually twice as much as an SD card. Considering the price difference, I will not recommend purchasing a PRO Duo card for use in an A450.
Do Both Memory Cards Slots Need to Be Used in the A450?
No, the Sony A450 is not able to use both memory card slots concurrently.
Competing camera brands make cameras that can use both memory card slots simultaneously. That provides additional features such as overflow protection, mirroring the memory cards, and splitting up JPEGs and RAW files.
Not having the chance to use dual memory card slots for additional options, means that you should not waste the extra money on a PRO Duo memory card.
Below is an approximate estimation of how many large JPEG images you can expect to store on each size of an SD card.
- 4GB - 1,160 images
- 8GB - 2,320 images
- 16GB - 4,640 images
- 32GB - 9,280 images
Those are the key specs to know before purchasing an SD and PRO Duo memory card. The SanDisk Extreme Pro 32GB is the best Sony A450 memory card.
Here are more Sony cameras that use the same cards: