Customer Review

523 of 568 people found the following review helpful
3.0 out of 5 stars Video Problems with some sdhc cards (especially Kingston), You may miss some good shots unless you use sandisk extreme lll., May 4, 2009
This review is from: Canon EOS Rebel T1i 15.1 MP CMOS Digital SLR Camera with 3-Inch LCD and EF-S 18-55mm f/3.5-5.6 IS Lens (Camera)
**see update below, now give this camera a 4 star
**** Video Test memory consumption rates and max minutes per clip contained below.

I couldn't wait to my hands on the new Canon T1i. It was a stretch for my budget but had most of the 5d mkll features. I was excited. I pre-ordered a body (I already have 2 xti's and lenses) but the only the kits are/were available so I upgrade to get it before a SciFi convention I attended.
Higher iso and video, for the less than optimal lighting in the hall where the Celebs were speaking, attracted me.
I tested the video for memory consumption rate the day I got it, no problem for a 20 minute test run. I saw a little white bar on the right side of the screen appear get a little bigger, then disappear. I figured it was a buffer level. Next day at the convention during Jeri Ryan's appearance I took a few stills and flipped into the video mode, nice.... until it stopped after a few minutes. Set it back up, pushed record again a few minutes later stopped, no warning, no beep, just stopped. Try again, now I notice the buffer bar reaches the top, it stops. I am using a kingston 8 gig class 6 sdhc, freshly formatted by the camera. That sucks! I missed a lot of good video because this new marvelous camera can't write fast enough. This occured on 2 different but identical cards so I thought the camera was having problems. It was on the 720p mode, 1080 mode could only go 8 seconds.

****Update---I talked to Canon, to make a long story short, this camera is a bit finicky about which cards you put in it. Both kingston class 6 (fastest class) had problems, tried a kingston micro class 4 (slower) 4 gig and it worked fine, tried 2 Polaroid/pny 8 gig class 4's and they worked fine with only 1 buffer bar appearing occasionally, even on 1080. Canon guy seemed to like the sandisk brand. This begs the question of how can a class 4 work better than the class 6? I have a sandisk extreme III on order and will update this info if I have more problems with that.
My wrath now turns to Kingston, who service has been xlnt.
***update kingston- I returned a card to kingston, they sent a new one just as bad as the slow originals, which indicates ALL this type kingston are mot going to work in this camera for video.

******Another update, with a Sandisk 8 Gb Extreme lll card the video worked fine, no buffer bar at all. Perhaps there should be a recommended list of sdhc cards so others don't have the trouble I did.

That said, I was able to test the video as follows:
I have tested my T1i for memory usage in video mode, here are the results using a Sandisk 8 Gig Extreme III:

T1i Video Memory Usage Rates for a 1 minute file.

1080 mode 282 MB
720 mode 194 MB
480 mode 131MB

Following is for 5 minute file
1080 = 1,383 MB
720 = 988 MB
480 = 638

Any 1 clip can be 4GB max, so the following is an approximate max clip length

1080 about 14 minutes
720 about 20 minutes
480 about 30 minutes

These figures are approximate as the content of the video will affect the compression and amount of memory actually used but these are pretty close to an average time you should expect. I did a little rounding so these are probably the on the low side you may get a little more time, but not much, maybe a minute.

You can shoot as much video as the card will hold, just any 1 uninterrupted clip cannot be longer than 4 gig.

Shooting Video also eats the battery, buy extras, one Battery per every 8 gig card should be about right.

Bottom line-MAKE SURE you thoroughly test and 'season' the memory card BEFORE counting on getting complete videos. The first cards I tried did work on day 1 for 20 minutes but the buffer bar got to 3 or 4. Day 2 (the convention) was a different story, you read it above. DO NOT use KINGSTON CARDS.

Stills are pretty good but I noticed on blowing them up the noise almost looks like dusty distorted scratchy marks on the sensor, not just the colored freckles. My XTi is better, My Nikon d200 is better, my Nikon d40 is better in the noise department. I cranked up the iso to speed up my shutter and some of the shots looked like very dirty/dusty slides I have from the 70's. I guess you can choose between the noise or slow shutter speed with the movement blur, or both. See the customer images for a sample of the noise at 6400 iso.

****update on stills
Still shot Capacity on 8 gig card
Large + RAW =286
Just RAW = 359
Large = 1375
Medium = 2334
Small = 4175
* if you shoot any video mixed with the stills these numbers drop very fast.

Other review sites had a pre-release version of this camera and they had the same video problem, (they did not name the sdhc card they were using, but I'd bet it was a kingston). Unfortunately there were not any reviews of actual cameras when I ordered it, just press releases. Now you have been warned and now you have this review. When you lose the video as the couple says 'I do' or other critical moment, you'll curse too.
***I currently put a SanDisk 8 gb sdhc extreme III rated at 20 MB/Second, far and above the minimum class 6 rating of 6MB/sec, it seems to work flawlessly today, we'll see about tomorrow, but this showed no signs of the buffer bar on the side, looks promising!
***update SanDisk still working xlnt.

If you are going to do Video, and it important at all, I can only recommend the SanDisk 8 gb sdhc extreme III at this point. Just be warned that the video mode is very demanding and picky about the performance of the card, just the class rating is not to be counted on, as I found out the hard way. Some class 4's may work, even class 2's but that buffer bar will start showing up.

>>>>>>>> Be Safe Buy the Sandisk Extreme III.
>>>>>>>> Another user says Transcend 16GB Class 6 SDHC is performing well in video
>>>>>>used A-Data class 10 sdhc 8GB card with no problems
>>>>>>WARNING ---Centon Class 6 16GB SDHC crashed and as slow as Kingston DO NOT use CENTON cards, they do NOT comply with the speed rating.
>>>>>>Polaroid/pny 16GB Class 4 cards work OK as long as you do NOT take a still pic while videoing.

***Notes on Video File format generated by the t1i-
This camera saves the video in .MOV files, which is fine if you have an apple/mac, BUT if you run xp, you must convert this format file to something else (avi, mpeg,...etc)in order to make a dvd with the commonly found software. Canon DOES NOT provide any software to deal with .mov conversion or transferring to a dvd to be played by a dvd player. This makes life a lot more complicated. Sure you can search around, get a file converter, then import to a dvd maker, then burn a dvd. Why should I have to search for these utilities and go through all that? Why couldn't canon have just put a simple dvd transfer or mov converter program in the bundle? Or have I just not found it yet?

Canon, please remember, K.I.S.S. is a good principle.
Help other customers find the most helpful reviews 
Was this review helpful to you? Yes No

[Add comment]
Post a comment
To insert a product link use the format: [[ASIN:ASIN product-title]] (What's this?)
Amazon will display this name with all your submissions, including reviews and discussion posts. (Learn more)
This badge will be assigned to you and will appear along with your name.
There was an error. Please try again.
Please see the full guidelines here.

Official Comment

As a representative of this product you can post one Official Comment on this review. It will appear immediately below the review wherever it is displayed.   Learn more
The following name and badge will be shown with this comment:
 (edit name)
After clicking the Post button you will be asked to create your public name, which will be shown with all your contributions.

Is this your product?

If you are the author, artist, manufacturer or an official representative of this product, you can post an Official Comment on this review. It will appear immediately below the review wherever it is displayed.  Learn more
Otherwise, you can still post a regular comment on this review.

Is this your product?

If you are the author, artist, manufacturer or an official representative of this product, you can post an Official Comment on this review. It will appear immediately below the review wherever it is displayed.   Learn more
System timed out

We were unable to verify whether you represent the product. Please try again later, or retry now. Otherwise you can post a regular comment.

Since you previously posted an Official Comment, this comment will appear in the comment section below. You also have the option to edit your Official Comment.   Learn more
The maximum number of Official Comments have been posted. This comment will appear in the comment section below.   Learn more
Prompts for sign-in


Tracked by 3 customers

Sort: Oldest first | Newest first
Showing 21-30 of 46 posts in this discussion
In reply to an earlier post on Jun 25, 2009 8:37:18 AM PDT
I just tested a Sandisk Ultra II 4GB SDHC card in my T1i. It works just fine in the 1080 HD video mode. The alleged 'buffer bar' never showed up. The strange thing is that Ultra II card is labeled as a 'Class-2' card, but in my benchmark it can sustain between 6MB/S and 14MB/S of data writing rate. So it looks like the Sandisk Extreme III card is an over-kill.

In reply to an earlier post on Jun 25, 2009 1:22:56 PM PDT
Last edited by the author on Jun 25, 2009 1:42:05 PM PDT
Mark says:
Thanks, smithnwesson for the very informative information regarding the SD Cards.

From an earlier post:

"H. Nguyen says:
Please check my picture of a 3200 ISO uploaded to amazon! You obviously have not explored all the options of this camera. There is a high ISO reduction you can do to make the picture much better at higher noise level. "

Thanks for the info, H. Nguyen.

Can you provide further details on how you achieved the better picture quality at the high ISO settings.

I would also be interested in what you think of the following review of the T1i. It seems to show that the T1i does a poorer job at the higher ISO settings than the XSi.

I am a photo noob, and I am interested in the T1i, but I may go for the XSi or Nikon D5000.

Thanks for your help

Posted on Jun 26, 2009 9:58:13 PM PDT
Goldog says:
[Customers don't think this post adds to the discussion. Show post anyway. Show all unhelpful posts.]

Posted on Jun 28, 2009 8:55:56 AM PDT
john says:
[Customers don't think this post adds to the discussion. Show post anyway. Show all unhelpful posts.]

In reply to an earlier post on Jul 2, 2009 11:36:31 AM PDT
If video is so important to you, that's why they invented video cameras. This is first and foremost a photo camera, not video. Video in digital photo cameras are gimmicky and home movie types only need, but gimmicky.

Posted on Sep 15, 2009 3:19:37 PM PDT
[Deleted by the author on Sep 15, 2009 3:22:03 PM PDT]

Posted on Oct 2, 2009 8:12:28 AM PDT
Wow, great review and worth reading every word. Thank you for taking the time to log this.

In reply to an earlier post on Oct 20, 2009 9:51:31 AM PDT
Sam says:
Thank you very much for the great review. It has been a tremendous help. I was specifically searching for correct card to buy, I knew card will be an issue and there it was your review.

Regarding "buy a video camera for video" arguments that pop-up time to time, is not a fair suggestion. There are some advantages of having able to use the collection of lenses for video than just using the flat lens on the camcorder. If you want to achieve same effect wtih an camcoder, then have to attach 35mm DOF adapter such as JAG35 to the Camcorder and then attach the lenses on top of that. Even though DSLR would not give exact motion camera like effect like vibrating JAG35 does, it is not bulky at least and I can use the my lenses. Yes. Video in DSLR is not for make major motion pictures, so does camcorders. But at the end, video on DSLR can offer more creative space than an camcorder, when we record grandchildren's birthday party.

Posted on Nov 9, 2009 7:52:33 AM PST
Sarah Main says:
remember that this is a camera, first and foremost... if you are that serious about shooting video, you should probably look at getting a camcorder.

Posted on Nov 22, 2009 7:43:47 PM PST
Great review by SmithNWesson! Please, don't let idiotic comments get into you. We appreciate your good work and hope that you will continue to post detailed reviews on various stuff.

Review Details



Location: Kalifornia

Top Reviewer Ranking: 2,593,028