There is just one card slot available on the Canon EOS 40D, and it is compatible with CompactFlash memory cards that have a maximum capacity of 128 gigabytes. The camera is compatible with UDMA and may use either Type I or Type II Compact Flash memory cards.
The read speed is the most important consideration to make when contrasting different CF cards for use in the Canon 40D. The fastest CF memory cards will outperform slower cards by a margin of several minutes while doing tasks such as transferring a large number of images.
Top Best Memory Cards For Canon EOS 40D
1. Lexar Professional 1066x 32GB CompactFlash Card
Lexar Professional 1066x 32GB VPG-65 CompactFlash card (LCF32GCRBNA1066)
- High speed performance, leverages UDMA 7 technology to deliver a read transfer speed up to 1066x (160MB/s)
- Captures high-quality images and extended lengths of stunning 1080p full-HD, 3D, and 4K video with a DSLR camera, HD camcorder, or 3D camera
- High speed performance, leverages UDMA 7 technology to deliver a read transfer speed up to 1066x (160MB/s)
- Captures high-quality images and extended lengths of stunning 1080p full-HD, 3D, and 4K video with a DSLR camera, HD camcorder, or 3D camera
Lexar has expanded its selection of products that are compatible with CompactFlash by introducing its Professional 1066x CompactFlash card line. This line is now their highest-performing CF line.
The read transfer speeds of the 1066x line are 160MB/s, which is significantly faster than the next-fastest line, which is only 120MB/s. This line is designed for both amateur and professional photographers and videographers. These cards may be placed into HD camcorders, 3D cameras, or DSLR cameras to record modern video formats (1080p, 3D, and 4K) on a variety of top-tier as well as entry-level hosts. Additionally, these cards are compatible with a wide range of hosts.
The 1066x line satisfies the standards of VPG-65 and employs UDMA 7 technology in its production. The rapid card-to-computer transfers that the cards are capable of doing when linked with a card reader that supports UDMA 7 contribute to an increase in the post-production productivity of the cards. In the event that your memory card becomes corrupted or you accidentally delete some of your photos or videos, you may get help recovering them by downloading Image Rescue for free.
- Transfer rates of up to 160 MB/s are possible.
- Video Performance Guarantee spec VPG 65.
- Warranty with limited lifetime coverage.
2. SanDisk Extreme 32GB Compact Flash Card
SanDisk 32GB Extreme CompactFlash Memory Card UDMA 7 Speed Up To 120MB/s...
- Exceptional Shot to Shot Performance - Read speeds of up to 120MB/s and write speeds of up to 85MB/s
- Professional-Grade Video Capture - VPG-20 ensures sustained data recording rate of 20MB/s for a smooth and unbroken video stream
- Exceptional Shot to Shot Performance - Read speeds of up to 120MB/s and write speeds of up to 85MB/s
- Professional-Grade Video Capture - VPG-20 ensures sustained data recording rate of 20MB/s for a smooth and unbroken video stream
- Durable Design - Backed by rigorous stress, shock, and vibration testing and includes RTV silicone coating for protection against shock and vibration
Read and write speeds on the SanDisk Extreme CompactFlash Memory Card are exceptionally high, making it suitable for use with high-end DSLR cameras and HD camcorders. Additionally, the card’s speed makes it excellent for capturing quick action shots and transferring files in a hurry.
This memory card’s capacity to record Full HD video (1080p)4 at a minimum sustained data rate of 20MB/s3 is made possible by the Video Performance Guarantee (VPG-20) technology that it employs. Utilize the card’s write rates of up to 85MB/s1 (567X), and its transfer speeds of up to 120MB/s2, for efficient workflow and burst photography respectively.
This memory card has a maximum storage capacity of 128 GB5, which is more than sufficient for recording Full HD video and taking RAW photographs.
- Read rates of up to 120 MB/s can be achieved.
- Up to 85 MB per second may be written.
- Continuous recording of data at a rate of 20 MB/s
- Proof against water, x-rays, and shocks.
3. SanDisk Ultra 16GB CompactFlash Card
SanDisk Ultra 16GB Compact Flash Memory Card Speed Up To 50MB/s, Frustration-Free...
- Speeds up to 50MB/s for ultra performance, fast write speeds to reduce lag time between shots
- Ideal combination of reliability, value, and ultra performance
- Great for entry to mid range DSLRs, supports full HD video recording
- Speeds up to 50MB/s for ultra performance, fast write speeds to reduce lag time between shots
- Ideal combination of reliability, value, and ultra performance
- Great for entry to mid range DSLRs, supports full HD video recording
- Reliability from the brand trusted by pros
- Compatible with CompactFlash supporting host devices, card dimension 1.7 x 1.4 x 0.13 inches (43 x 36 x 3.3 millimeter)
You are able to store hundreds of high-resolution images in formats such as RAW and JPEG on the SanDisk 16GB Ultra Compact Flash Memory Card since it has a storage capacity of 16GB. Additionally, you are able to save hours of 1080p HD video on the card.
With this CompactFlash card, which offers increased shot rates, you may quickly transmit data to and from your computer with data read speeds of up to 50 MB/s and data write capabilities that are somewhat slower than reading speeds.
Consistently lightning-quick speeds are available to you.
You’ll be able to save time when transferring data to your computer thanks to transferring rates of up to 50 MB/s, and you’ll be able to seize the moment thanks to blazing-fast shooting speeds. Due to the longevity and outstanding performance of SanDisk Ultra CompactFlash memory cards, you can rely on them to shoot and store the photographs and movies that are most important to you.
Outstanding Full HD Recording
Because of its quicker transfer rates, the SanDisk Ultra CompactFlash Memory Card makes it possible for Full HD video (1080p) camcorders to record video without stuttering. The card is up to the challenge of meeting the stringent memory needs of Full HD video formats.
- speeds of up to 50 MB per second.
- Excellent dependability and value.
- Ideal for mid-range DSLRs.
4. CompactFlash Delkin Devices 64 GB Prime UDMA7
Delkin Devices Prime 1050X 64GB UDMA 7 CompactFlash Memory Card
- Supports 4K & Full HD 1080p Video Recording at High Frame Rates
- RAW Continuous-Shooting Approved
- Read/Write Speeds: 160/120 MB/s
- Video Performance 65 (VPG-65)
- Supports 4K & Full HD 1080p Video Recording at High Frame Rates
- RAW Continuous-Shooting Approved
- Read/Write Speeds: 160/120 MB/s
- Video Performance 65 (VPG-65)
The Prime CompactFlash card was designed by Delkin Devices with the full HD video shooter or the photographer who takes measured bursts of high-resolution continuous RAW frames in mind when they developed the product. The currently available CompactFlash cards are not the fastest in their respective categories. Even if there are other cards on this list that are superior, this one is not the worst that might happen to you if you were dealt it. Not even close, to be honest.
This particular memory card has a maximum read and writes speed of 160 megabytes per second (MB/s) respectively. This card is sufficient for capturing full HD video as well as RAW frames in a continuous stream. However, it is not the best option for recording footage in 4K resolution.
