SANDISK EXTREME IV CF 4GB

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Editorial reviews

Product Description
Extreme IV is the new industry leader in the best-in-class solution for high profile professional photographers. As the elite flash memory cards available on the market, Extreme IV has extremely fast read/write speeds. This line provides the durability, high-speed, and quality demands for serious photography. SanDisks award-winning technology solidifies the strength of the Extreme IV family of high-performance flash cards. Designed to meet the critical speed and performance needs of serious professional photographers. Significantly improved workflow efficiency for capturing, viewing, upload and transferring large image files Ideal for demanding photo shoots under severe weather conditionsheat, cold, wind, rain, snow, etc. Please note that eXpansys vouchers cannot be used when purchasing this product.

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Customer reviews

review by: CanonMan59 date: 2008-06-05 rating:
Sandisk Extreme - Extremely Fast & Reliable
The Sandisk range of memory cards are second to none.
This Extreme IV card is superfast (I thought the Extreme III was fast) and I can recommended this card to any amateur/professional photographer without reservation, it is top spec.
Always buy original SanDisk products and beware of cheap copies being offered from abroad (grey countries) and on some auction sites. (see Nic D's review for counterfeit).
Do not be put off by the price as you only get what you pay for and Sandisk memory cards are well worth the premium. 10/10
Amazon.co.uk is a great place to buy any product.

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review by: JD date: 2008-05-30 rating:
JD
I have to agree with Mastervoda (the review below). Unless you own a serious camera which can benefit from the Extreme VI, I'd stick with the reasonably priced Extreme III. I purchased the Extreme VI (8GB) and noticed no difference over the III when it came to shooting at high speed or, taking long exposure shots which can sometimes take a while to write onto the card.

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review by: CBPhotography date: 2008-05-17 rating:
Failed after six months
Lost a day's worth of photographs. Now unformattable so useless. Not good for a high end product which retailed at £49.90 when I bought it. Now off to try and exercise Sandisc's lifetime warranty. Not at all clear from any of the sites how you do this....

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review by: date: 2008-05-10 rating:
Beware of counterfeit version of this card
I've rated the item low simply to draw attention to counterfeit copies of this product being sold. I bought a "SanDisk IV 4gb" card from an independent seller and only got round to using it well past the date I could claim back for it.

It garbled a lot of the data (though thankfully I had the recovery software from other genuine SanDisk cards and managed to extract about 75% of the images - the recovery cd sent with the bogus card was unreadable by Windows).

Having now looked closely at the card, the top part reads 'CompactFlash'. Compared to my genuine cards, this looks extremely faint. There is also a typo on the reverse of the box which reads "Super fast read and wrie speeds" (note the 't' missing from 'write'). I have no idea whether this also occurs on the genuine box but it might be symptomatic. Other than this it unfortunately all looks genuine.

Beware of the low prices being asked for this card. You might end up getting what you pay for! I recommend you buy it from Amazon (or other reputable dealer) and approach independent sellers with caution. Hope this helps.


review by: date: 2007-08-13 rating:
Can you Digital SLR take the speed?

I bought this card and was very happy with it, but I didn't really notice any speed benefits over lesser quality cards.

I didn't think the card was at fault as it performed well enough and wasn't about to believe that Sandisk would provide an Extreme III as an Extreme IV! I looked into my Canon Digital SLR, that was a revalation!

Apparently all Canon and Nikon Digital SLRs cannot make use of the enhanced speeds of the Extreme IV, Nikon's latest cameras use the PIO5 transfer standard for Compact Flash (their SD cameras are excluded) so they can make use of the Extreme III which supports PIO5 and PIO6 but Canon don't even go that far (Ultra II covers the most advanced standard they support)!

It seems that although these cards are very, very fast with the correct readers that support PIO5 and PIO6 standards, most of the Digital SLRs do not (unless we are going into the price of a sports coupe territory for cameras). I sent my Extreme IV back and bought an Extreme III. The speed is just as fast, maybe 100k/s slower but not enough to make any difference in a Canon 5D or lesser camera, and this would be true if the card was an Ultra II. However, the price difference between the Ultra II and Extreme III makes it silly to go for the Ultra II as many card readers can make use of the better transfer speed from card to PC (plus the Extreme III has a better warranty and compatibility with the newer Nikons, and hopefully Canon if they ever catch up).

My advice is if you want the best, get the Extreme IV for pure flash (no pun intended) value. If you want performance and budget, the Extreme III represents the very best with no noticable speed difference - bear in mind that the lower capacities are faster, so a 1GB card is faster than a 2GB card which in turn is faster than a 4GB card etc.

In real world tests it's found that a 2GB Extreme III can transfer data off a Canon 5D Digital SLR slightly faster than a 4GB Extreme IV, so the real world difference is negliable.

The price difference however, is not.

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