Quick question... 50D (6.3fps), do I NEED IV or will III be OK?

Kryptix

Kryptix

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As above really. Extreme IV is stupidly expensive, more than double in price. Will Extreme III still give me 6.3fps shooting RAW?
 
So what's the point of IV? I wanna get my head around it. Do faster cameras need it?
 
extreme III copes with my 10fps, so 6.3 will be a doddle.

Of course it really depends on whether you shoot raw or jpeg and how quickly you fill your buffer, not how fast the card can write.

Keep your finger down and you will eventually run out of buffer
 
keirik said:
extreme III copes with my 10fps, so 6.3 will be a doddle.

Of course it really depends on whether you shoot raw or jpeg and how quickly you fill your buffer, not how fast the card can write.

Keep your finger down and you will eventually run out of buffer
Click to expand...

Not quite true, I used a Kingston card that slowed up after about 12-15 shots, so it was slower than the buffer.
 
Depends what the speed of the card is to the speed of the buffer to clear the image. I still use III on my 1D Mkiin and have no problems, but I don't use the camera as a machine gun, so never fill up the buffer and also I shoot JPeg not raw.

http://www.imaging-resource.com/PRODS/E50D/E50DA6.HTM
 
As has been said here when using continuous shooting the images are temporarily stored in the camera's buffer and once shooting stops the images are then written to the memory card. The speed of the memory card dictates how long the images to be written from the buffer to the card will take before shooting can start again.
 
I have a couple of Lexar UDMA cards (300x) which can take a burst of 19 RAW files before slowing, and also a Sandisk Extreme 3 which is only capable of a burst of 15 RAW files before the buffer is full.

Kryptix; if you didn't manage to get the shot with the first 15 exposures, then I doubt another 4 would help matters.
 
Cheers, I went for a 16gB Extreme III. Can someone please point me in the direction of a card reader that'll transfer as quickly as possible?
 
Are you talking about CF card or the card reader?

Does faster mean less reliable then? :suspect:
 
No no, for the CF card you want it to be as fast as possible - in things like sports it could be the difference between getting the shot and not getting the shot.

However with a card reader, it doesn't NEED to be fast. Faster ones will read a lot quicker, granted, than a slower one. The difference between taking 30 minutes to take 16gb of images off a card and 5 minutes to take 16gb off a card.

What's the point though?
£4 will get you a bog standard regular transfer speed card reader
£50 will get you one that writes at uber speed

It's just whether you feel you're so impatient that you should spend £45 extra on 20 minutes of your time :thumbs:
 
Kryptix said:
Cheers, I went for a 16gB Extreme III. Can someone please point me in the direction of a card reader that'll transfer as quickly as possible?
Click to expand...

Think ebuyer do one for less then a fiver :), it comes with free patience as well :).
 
Surprised everyone here is saying the III would be just as fast as the IV when dpreview's review of the 40D said exactly the opposite:

http://www.dpreview.com/reviews/CanonEOS40D/page13.asp

Once the buffer is filled there's a marked difference in the performance of these cards.

Granted the IIIs were probably the older 20MB/s type rather than the newer 30MB/s type but the IVs would still be faster, even more so on the 50D which has 50% more data to write with each shot.

Of course whether this speed improvement is worth the huge price hike is another question. Personally I don't think it is and still use IIIs on my 40D but YMMV.
 
Vertigo1 said:
Surprised everyone here is saying the III would be just as fast as the IV
Click to expand...

Did i miss the part where someone said that?
What is basically said is that its down to how quickly the card can clear the buffer from the camera. A III will clear it fast, a IV will clear it faster.

As BigDex said, if you didnt nail the shot in the first 15 using an EXIII, then whats to say you will nail it in the extra 4 the EXIV would give you?

Does the 50d have a larger buffer then the 40d?
 
Anyone know of a decent internal reader? The one I have jsut now has a horrible short slot so bent pins ahoy and its very slowwwww.
 
Internal readers have fallen out of fashion really. All the kickass ones are USB2 or FireWire these days.
 
MJ Stebbings said:
Did i miss the part where someone said that?
What is basically said is that its down to how quickly the card can clear the buffer from the camera. A III will clear it fast, a IV will clear it faster.
Click to expand...
Yep you're right - my fault for skim-reading the thread :(
 
Kryptix said:
As above really. Extreme IV is stupidly expensive, more than double in price. Will Extreme III still give me 6.3fps shooting RAW?
Click to expand...

FWIW I use 32GB 133X Transcend cards in my 1D3 and 50D, which were £54 each when I bought them. I weighed up the pros and cons of speed vs capacity vs price and concluded I'd rather have more storage for less money. My style of shooting very rarely sees me with a full buffer. In fact, I think the only time I fill it fully is when shooting AI Servo test sequences. For actual photography(weddings, wildlife, landscapes, motorsport), card speed is not an issue for me.

As for downloading, I use an Express Card 54 CF card reader in each of my laptops. It is not a problem if the image files take more than a nanosecond to download - it's not as though I can review 1,000 images in 30 seconds in any case. I'm quite happy to go and make a cup of tea while downloading.
 
I have done various different photographic activities where it is supposed that continous shooting is required. I only ever had lockout once on my 20D and never on my 40D.
And that was with Ultra II cards shooting raw.

I'd be suprised if you find yourself in buffer lockout on the extremem III
 
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