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Old Nov 3, 2005, 12:09 PM   #1
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I'm about ready to pick up a Maxxum 5D, but I have one concern that I'm hoping someone here can help me clear up. I really want something with a decent JPEG burst mode; I'd like to be able to shoot at least 7-8 pics with a fast CF card before having to pause. According to the 5D's specs, it can shoot only 3 shots in Extra Fine/Large mode before pausing to write, while it can do 10 in Fine/Large and 24 in Standard/Large. So, my question: What are the compression ratios like at Fine and Standard? Are these usable pictures, or would I be sacrificing image quality too much just to get the burst speed?

Thanks!
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Old Nov 3, 2005, 3:10 PM   #2
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if this is a major concern opt for the 7D

extra fine burst of about 12 shots
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Old Nov 3, 2005, 3:39 PM   #3
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I am doing approx 8-9 shots before buffer slows down the speed to approx 1 sec/shot.

Using an XD-card in a CF-flash adapter, which may not be as quick as a good CF (?)


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Old Nov 3, 2005, 6:29 PM   #4
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the speed of the card is almost a moot point

it is the processing speed and buffer size of the camera that has the greatest impact

the card speed is more important when downloading to the computer
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Old Nov 3, 2005, 6:32 PM   #5
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I use a Sandisk 1GB Extreme III card in a 5D. Shooting fine JPEG I just shot 50 without slowing down. I stopped shooting so I don't know how many more it will go. The card you use will make a big difference in performance. The difference in appearance between extra fine and fine is negligible and I can't really see it myself. I shoot either fine JPEG or RAW. Look at this link showing the speeds of various cards in both the 7D and 5D.

http://www.dyxum.com/reviews/cfcard/index.asp

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Old Nov 3, 2005, 6:38 PM   #6
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Thanks. If shooting in Fine doesn't yield any major compression artifacts, then it sounds like it'll work for me.
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Old Nov 4, 2005, 7:24 AM   #7
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fine is 3+ meg jpeg = 8x10 or 11x14 print

extra fine is 5+ jpeg = 16x20 print or 20x30 'poster'
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Old Nov 4, 2005, 10:13 AM   #8
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Fine and extra fine are both 6MP images. So enlargement sizes are the same. You're refering to file size.
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Old Nov 4, 2005, 10:46 AM   #9
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correct, the final file size reflects the degree of compression/processing



more compression = less quality



would there be a difference for 'snapshot' size prints/ not likely, but for the 'oh my god i got it' shot there most definately would be a discernable difference



for any type of pro/commercial/competitive work you need a 300dpi/3+ meg final file size - if that is the original file how would you crop it? - interpolate back up? (more loss)



what is the problem in spending $900 vs. $750 for a camera in this quality range?

why buy the 'dumbed down' version with a plastic body?



......lol...........john

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Old Nov 4, 2005, 11:07 AM   #10
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Pro work demands TIFF. You don't understand interpolation either. "oh my God" shots need RAW. You don't know what you're talking about LOL:?
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