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General photography questions and answers: Discuss Extreme IV or Lexar UDMA...I've got an amazon voucher to spend so I thought I'd buy another, faster, CF card for the D300. I ...
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Old 03-03-2008, 19:11   #1 (permalink)
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Extreme IV or Lexar UDMA

I've got an amazon voucher to spend so I thought I'd buy another, faster, CF card for the D300. I was looking at Lexar UDMA because VinnyP (I think) mentioned them as clearing the D300 buffer very fast, but then I noticed that Sandisk now have Extreme IV, and I'm not sure which is best / if there's a 'best' / the speeds of the two.

Thanks for any advice you can give


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Old 03-03-2008, 19:20   #2 (permalink)
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Re: Extreme IV or Lexar UDMA

Not sure if one is better than the other, but you'll need a special card reader to take advantage of the high transfer speed when downloading the images.

Might be worth considering with the larger file sizes you are going to get.
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Old 03-03-2008, 19:23   #3 (permalink)
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Re: Extreme IV or Lexar UDMA

I'm not too fussed about the transfer speeds really, although faster would be nice, and that is useful info. I want the buffer to clear as fast as possible, to keep up with the frame rate
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Old 03-03-2008, 19:38   #4 (permalink)
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Re: Extreme IV or Lexar UDMA

Fair comment, but unless you are going to do a lot of burst work is the expense of these cards worth it? Have you tried burst mode with the cards you have now?
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Old 03-03-2008, 19:57   #5 (permalink)
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Re: Extreme IV or Lexar UDMA

Yeah I have, and I have to wait approximately 6 seconds or more for the buffer to save after a full 17 shot RAW burst. Fair point about needing that speed though....
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Old 03-03-2008, 20:21   #6 (permalink)
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Re: Extreme IV or Lexar UDMA

The prices will be coming down in time, so maybe it is worth waiting before you get one?

I can see why you want one, and it is a while until Christmas, but in six months I think they will be a lot cheaper.
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Old 03-03-2008, 20:28   #7 (permalink)
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Re: Extreme IV or Lexar UDMA

But what shall I buy with my amazon voucher then?
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Old 03-03-2008, 20:37   #8 (permalink)
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Re: Extreme IV or Lexar UDMA

I'm sure you will think of something.
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Old 04-03-2008, 05:18   #9 (permalink)
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Re: Extreme IV or Lexar UDMA

I would say have a look at your camera manual to see if actually states how fast the camera writes to the memory card, you may find cards like the Sandisk Extreme III would be fast enough, and they're available at really low prices at the moment!
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Old 04-03-2008, 09:27   #10 (permalink)
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Re: Extreme IV or Lexar UDMA

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I would say have a look at your camera manual to see if actually states how fast the camera writes to the memory card, you may find cards like the Sandisk Extreme III would be fast enough, and they're available at really low prices at the moment!
Good point Ian - I think the Picstop offer might be over now, but £17.99 for a 4 gig Extreme III was a steal. I've got four now, and my D70s will take 717 RAws on one

I've only bought them in anticipation of getting a camera with larger file sizes though........
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Old 04-03-2008, 10:47   #11 (permalink)
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Re: Extreme IV or Lexar UDMA

I think Sonsey is right - most cameras can't keep up with the Extreme III, never mind the IV.

To prevent unnecessary stress, just donate the voucher to the Silkstone Appreciation Fund Ltd.
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Old 04-03-2008, 11:42   #12 (permalink)
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Re: Extreme IV or Lexar UDMA

Both are UDMA The Extreme IV are slightly slower than the Lexar for uploading to the PC but for some weird reason the Sandisk IV clear the buffer of the D300 much quicker. This is not true of non UDMA cameras where the Extreme III is nearly as fast. Pretty much just the D3 and D300 so far. Yes the Firewire 800 reader is speedy and I got one bundled with my card which I use with my desktop but my laptop doesn't have firewire built in so I got an Omniflash Uno UDMA USB 2.0 reader for silly cheap money and it's almost as good (only with UDMA cards). This guy did quite a bit of testing with the D300, readers and CF cards. I don't have the Lexar but what I can say is with the Extreme III in JPG the buffer clears as fast as I can shoot even at 8FPS. In raw you only get 1 or 2 extra frames before it slows down but in just a few seconds the buffer is empty to shoot again and much quicker than the extreme III. On the D200 D2x it makes no difference at all.

It's very seldom you will hit the buffer even with Raw on a single burst. What has happened when you shoot a number of bursts in quick succession. This will really help to avoid that.

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Old 04-03-2008, 15:12   #13 (permalink)
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Re: Extreme IV or Lexar UDMA

Not sure if this is any use to you Jack, know its not Amazon but they might do it, Picstop have a offer on a Lexar professional 8gb & you get free camera case & software Coral paintshop pro 9.
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Old 04-03-2008, 18:11   #14 (permalink)
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Re: Extreme IV or Lexar UDMA

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Good point Ian - I think the Picstop offer might be over now, but £17.99 for a 4 gig Extreme III was a steal. I've got four now, and my D70s will take 717 RAws on one

I've only bought them in anticipation of getting a camera with larger file sizes though........
Yeah I'll probably nab me some of those! LOL graham, 717? If you get to the D300, be prepared for the number 180 to appear on the top LCD

Thanks sonsey, interesting to note, and will probably save me a bit of money

Thanks for all the replies, Vinny that link was interesting, he certainly tested them thoroughly!

Thanks simpbow, although I'm not sure I'd do too well to have another camera bag (got 4), and another piece of editing software (have countless trials and freebies etc.)

I might just sell the amazon voucher to my dad, he's always buying stuff off there, and use it for my memory or picstop or wherever. Thanks again for the replies,



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Old 04-03-2008, 19:02   #15 (permalink)
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Re: Extreme IV or Lexar UDMA

I have a Sandisk Extreme IV 4GB which I use in my D300. It's quick at clearing the buffer (helps when shooting in 14bit RAW with large fine JPG's), but then its not often that I fill that up, so if I were to buy more cards then I'd go for the Extreme III's and get double the space for about the price of one Extreme IV.

As VinnyP mentioned, you will need a fast CF reader too. I've got a Sandisk Extreme USB one, but it's maximum transfer speed with the Extreme IV card is 18.5MB/Sec (the fastest the reader can go is supposed to be 18MB/sec...). There a Lexar USB Dual-Slot UDMA reader for £17.99 from MyMemory, but I don't know what it's like.
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Old 05-03-2008, 22:32   #16 (permalink)
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Re: Extreme IV or Lexar UDMA

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But what shall I buy with my amazon voucher then?


The answer is in the question.............A BIG woman........
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