Sandisk again

[The Chiller]

Hi All
Sorry if I seem to be going over the same old thing. Before I buy a couple of new memory cards I have one last question. SanDisk Extreme Pro 45MB/S SDHC UHS-I memory card and SanDisk Extreme Class 10 30MB/S Edition SDHC card. Is the Pro the newer version, and is UHS-I the same as Class 10 Does UHS-I mean something else and Will it work in my Nikon D90 ? It's just the difference in price is quite a bit and I just wan't to be sure before I buy.
Sorry to be a pain and thanks again for any help or advice.
Gary

 

[The Chiller]

Anyone Please

 

[Stratman]

Sandisk

 

[The Chiller]

Sandisk

I tried there 1st but thanks. I have since found this info if it helps anybody else.

In addition the card also meets UHS Speed Class 1 video requirements, offering 10MB/s minimum sustained speeds, making it capable of easily capturing full 1080p HD video and 3D video. It is specifically built to work with UHS-enabled cameras, and although the only one currently on the market is the Nikon D7000, more bodies that offer this feature are said to be on their way. However it is fully compatible with any device capable of reading the SHHC format.

We stuck one in a Nikon D7000, to put it to the test. Its opponent? The next fastest SanDisk card available, the 30MB/s SanDisk Extreme SDHC.

We started out by seeing how many Nikon RAW files each card could process in a highspeed burst before “hiccupping.” Six tests, three for each card, revealed the same number, 10.

Next we switched our image quality on the Nikon D7000 to Fine jpgs, the largest jpg file one can shoot. In three high-speed burst tests, the 45MB/s card processed 29, 28 and 30 jpg’s, before the camera “hiccupped”. The 30 MB/s card processed 25, 23 and 23 jpg’s in its three tests before “hiccupping”.

Although the ability to shoot an extra four jpg’s in a burst may not seem like a lot, it could be the difference of getting that perfect photo of the game-winning touchdown pass and just missing it.

But how about upload speed?

We did two tests to see how long it would take each card to upload an identical 1.01 gigs (50 RAW files) in our Sandisk Imagemate All-in-One card reader. Oddly enough, it took the 45MB/s card 53 seconds both times to upload the images, while it only took the 30MB/s card 50 seconds both times to upload the same images. However this can likely be attributed to the fact that the reader used has not been optimized to be fully compatible with UHS.

Perhaps when we get our hands on an UHS-enabled reader, we will give it another test, but for, we think it is safe to say that, in terms of shooting still, the 45MB/s card offers little advantage over a 30MB/s card. Ultimately though, it seems that the added speed is more for those who shoot video to take advantage of, rather than still photographers.