22Aug The SanDisk memory cards came in.
Those SanDisk prices were so good that I went ahead and ordered 2 32GB cards and 2 16GB cards. I’ve been testing out Qscale setting that are available with the magic lantern firmware updates to the Canon t2i. My Transcend Class 10 cards don’t seem to keep up with higher Qscale settings, at about -11 I start to get drop out. The SanDisk cards on the other hand, have been recording with out much problem at -14 and -15 so far.
This demo gives a good idea of what Qscale does for video quality. You can actually reduce the bit rate enough to record up to 200 min as apposed to the 12 min with Canon’s normal compression rate. It’s very interesting to mess with, but I don’t know if these settings are ready for prime time just yet. Either way I think SanDisk cards are still a great value right now.
August 22nd, 2011 at 8:03 pm
Wow that is a great test, I have never done that before, thanks for sharing! Keep up the great videos.
Dave
August 22nd, 2011 at 8:18 pm
The credit actually goes to Matt Dennie for the video test. He did a great job going through all of the Qscale settings.
August 23rd, 2011 at 6:56 am
Would you recommend this over transcend just for regular 24p 1080 video recording?
I currently have a PNY 16gb and sometimes it would automatically stop the recording on my t3i.
Would the sandisk or transcend fix this? I’m planning on buying two 32gb’s
Thanks
August 23rd, 2011 at 9:16 pm
On slower cards it seems like drop out usually happens the most when the card is almost full. I’ve had great luck with my transcend class 10 cards, but I’ve heard from a few people that there tests are hit and miss. So far it seems like the SanDisk cards preform at a higher data rate and more consistently then most of the other branded cards I own.
August 23rd, 2011 at 10:24 am
Hi,
according to some tests, the 32GB are about 5MB/s faster than the 16GB ones. Can you confirm that?
August 28th, 2011 at 12:14 pm
I see absolutely no visible difference in image quality from that test… am I missing something or is all this q-scale talk just gimmick?
November 14th, 2011 at 8:57 pm
so how exactly do mess around with the q-scale? i am just recently hearing about this and i cant seem to find a proper explanation of what this is and how i can take advantage of it when shooting with my DSLR.
November 20th, 2011 at 8:27 pm
Basically the q-scale increases the bit rate of the video recorded. High bit rate gives you a little bit more color to work with if your doing color correction in post. Higher bit rate gives you more color information. The results are easier to see in your file properties then they are to see in the actual footage.