Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > Special Interests > Visual Media > Digital Video

Reply
 
Thread Tools Search this Thread Display Modes
Old Jan 5, 2013, 02:40 AM   #1
nateo200
macrumors 68020
 
nateo200's Avatar
 
Join Date: Feb 2009
Location: Rendering......
Sandisk SD card confusion

Ok so I have several Sandisk memory cards that I use in my DSLRs, Camcorders, etc. I never use anything below class 6 and if I can I almost certainly use class 10's. One thing I don't understand is the difference between their designations: "Extreme", "Ultra", and "Extreme Pro". Now I know the Extreme Pro's are for ultra high bit rate applications, it can handle 95MB/s, but with the Ultra vs Extreme, I don't understand the difference. The bit rates of an Extreme and an Ultra often over lap...I took a picture of some of the Sandisk SD cards I use daily but these aren't all of them. I have another 16GB ultra laying around plus another 16GB Extreme (I work with video pretty heavily and often have to use my own cards with other peoples equipment).

Lastly is the symbol with the 1 inside the U meaning its UHS-1? Just making sure, I ordered a Canon EOS 6D recently [taking a bit to get here >] and I want to make sure using All-I compression over the inferior IPB compression is a cake walk....I checked Sandisk's website and they did have some comparisons but it wasn't very well explained, well at least in my mind. If someone could clear this up for me I'd really appreciate it! Thanks!

Side note: I noticed my Canon 550D sort of runs out of buffer fast with my Extreme Pro even though its rated for 95MB/s...in magic lantern I can't go past 1.3x bit rate while I can go to 1.5x with my Ultra's...no big deal I guess..
Attached Thumbnails
Click image for larger version

Name:	Sandisk_SD-card_comparison.jpg
Views:	34
Size:	717.3 KB
ID:	388066  
__________________
-15" rMBP 2.4/8/256/650M, FCP X, AE CS5.5, PS CS6
-USB3 180GB SSD, Intensity Shuttle Thunderbolt
-Samsung Galaxy Note 8.0
-Canon 550D, GoPro3 Black, GoPro3 Silver
nateo200 is offline   1 Reply With Quote
Old Jan 5, 2013, 02:06 PM   #2
matteusclement
macrumors 65816
 
matteusclement's Avatar
 
Join Date: Jan 2008
Location: victoria
The only difference in the labels AFAIK is that when you use sandisk's card readers you get really good transfer rates. Other than that... I dunno. I use patriot and transend.
__________________
try this:
take an empty pop can, place it on the floor, smash it flat, now try to pull it back to how it was.
see how it looks like crap? that's called compression
matteusclement is offline   0 Reply With Quote
Old Jan 5, 2013, 02:40 PM   #3
grizfan
macrumors member
 
Join Date: Feb 2012
Location: Boise, ID
I think this has more to do with when each card was made. Those Ultra and Extreme labels are relative to what is the fastest speed available at manufacture date. Today's ultra-fast card is tomorrow's mid-range card.
grizfan is offline   0 Reply With Quote
Old Jan 5, 2013, 09:55 PM   #4
Photoshopper
macrumors regular
 
Join Date: Mar 2010
All I know is the labeling/rating system does nothing for the consumer except add to the confusion.
__________________
My Zenfolio
Photoshopper is offline   0 Reply With Quote

Reply
MacRumors Forums > Special Interests > Visual Media > Digital Video

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 08:34 AM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC