My guess: CF cards have largely fallen out of use, since SD cards are much smaller but offer similar capacities. If you do buffer, use a fast expensive CF card as your default, and keep a cheap and huge SD card in the camera for times when you fill up your CF card.
That increased my continuous raw shots before buffering with high speed continuous from 13 to about 31, and then increased the frame rate once buffering started. Made a huge difference with flying birds and sports.
Folks e. Chris: Since you seem to be the only person who actually knows something about CF or SD cards… how much higher is the practical throughput for a reasonably good CF card compared to a reasonably good SD card?
I still buy the economies of scale argument; large CF cards are only used by professional cameras, whereas large SD cards are used in many different kinds of devices. We recommend replacing the CF cards after 2 years or so , depending on how many images you have shot on them and how big the CF card is. They were therefore retained for use in professional cameras where compactness is not as important as speed and capacity. Do not force the plug into place.
If your first attempt fails, flip the plug over and slide it into place. There is a lot of debate over which memory card format is better.
Both SD and CF cards have their advantages and disadvantages. CompactFlash cards are physically a little bit larger than other formats and are still one of the most reliable mass data storage units in the market. CompactFlash are now the preferred memory card for professional videographers using digital video cameras. CFast cards are similar in size and shape to CompactFlash cards but they are not compatible. Here is a partial list of current cameras that offer one or more CFexpress card slots:.
Some CompactFlash cards are used in commercial grade video cameras and cameras that are designed for home use, while others are used for professional video storage. SD cards are sold on considerably higher volume than CF ones. When CF cards were more popular, it used to be the opposite. Nowadays, I would not worry at all about this. The most advantageous card is the one that fits in your camera! If you are choosing a camera, there are certainly much more significant differences to worry about than what memory cards they take.
For a camera that accepts both, if you want the fastest get CF. If you want to replication, you will need both. BTW, I have covered the technical differences here. They do not explain the price difference but may be interesting to know.
The main difference in cost probably comes from economies of scale. For a long time SD cards were more expensive, but now they've become cheaper as they've become easier to manufacture and require less materials. Meanwhile, due to their bulk, consumers have fallen out of favor with CF and prefer SD. Additionally, the architecture of the cards is different. For SD, the controller for reading the card resides in the reader and thus readers cost more but cards cost less but are limited by the reader.
For CF on the other hand, the controller resides in the card. This allows for some interesting things like the old Microdrives that were actual hard drives inside a CF card.
There were also devices like wifi modems and barcode scanners built in to CF cards. Since the controller resides in the card however, it means extra expense in the production of the cards. The faster the card, the better the controller has to be and the bigger the cost difference to a comparable SD card. Compactflash cards are much more sturdy. SD cards flex and get squashed, so unless you have them on your camera like if you carry extra like most serious photographers it is much better to use CF cards.
They also have better bandwidth with more pins, but mostly you wont notice that since the camera interface and cardreaders cannot fully utilize it unless you get the best of the best gear. The studiness feature is so high a priority for me that I look for the CF slot in camera specs as a dealbreaker kinda thing.
Ive had too many SD cards break , and seen other people complain that all their confeirence shots were lost on a sd card, that I avoid them. I've never seen a broken CF card.
Not that I claim it cant happen, just that the frequency is so low that I havent encountered one, in the same time I encountered multiple broken SD cards.
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