Tuesday, April 29, 2014

Canon t3i or t4i please help!?

Q. I'm a beginner in photography and filmography. I can't choose what camera to buy! please help!
if you can, please suggest what lens to buy too(: thanks


Answer
The Canon T4i and T5i when fitted with one of the new Canon "STM" lenses can auto focus during video.

EF-S 18-135mm IS STM

EF-S 18-55mm IS STM

EF 40mm STM

The Canon T3i doesn't allow auto focus durinng video with any lens.

Live video recording on PC with Canon Rebel T3i??




Genodo


I have recently ordered the said camera, just waiting for it to arrive.
I like to do a lot of mental planning, and one of the things that came to mind was the question mentioned above.
Can I record a video with computer connected with the software provided and save it onto the hard drive directly?
Also, would there be a time limit on how much I can record in a single button press if I use the camera connected to the computer?
I've searched up a bit and pretty much everyone said its a matter of the camera being overheated and shutting itself down. Right now, its pretty chilly where I live, so I'm guessing it won't overheat as quickly?
I want to record maybe like 1 or 2hrs.
I could probably pause for a few minutes between certain events.
I'll have a good sized memory card
I think I had other questions, but this is what I can think of right now.

I'm new to DSLRs, but definitely experience in technological areas, and I'm a quick learner.



Answer
While I agree with Jim A and lyingtiggeruk, another thing you can do is download and read through the manual of the dSLR you have selected - if you have not already done so.

Link to the canon.com T3i manual:
http://gdlp01.c-wss.com/gds/0/0300004720/02/eosrt3i-eos600d-im2-c-en.pdf

Manuals for the included apps are at the same place
http://www.usa.canon.com/cusa/support/consumer/eos_slr_camera_systems/eos_digital_slr_cameras/eos_rebel_t3i_18_55mm_is_ii_lens_kit#BrochuresAndManuals

You really don't need to rely on what "everyone said" because it is is in the manual:
Overheating: Page 163. Also on that page are cautions related to the internal mic recording noise when capturing video with auto-focus and zoom motor. Use of an external mic is suggested - better yet, an external recording device (like a Zoom H4n). Then there's the file length limitation (page 151) and the file segmentation (also indicated on page 151).

You may get a couple more minutes of video capture time becasue of the lower ambient temperature - but you most likely won't get to 1 or 2 hours. Normally, the overheating shutdown happens at about 20 minutes. I think you will be lucky if you get to the auto-shutdown 29 minutes and 29 seconds limitation.

Page 141 shows the fully charged included LP-E8 battery providing 1 hour and 40 minutes under normal ambient temperature - or an hour and 20 minutes in the cold - of video record time. So you may need another battery, too.

The dSLRs less than about $1,500 are not designed for video capture. That is a secondary "convenience feature" that comes with the primary capability for which it was designed - capturing still images. If video is the primary reason, then a device designed with that as its primary feature is a better investment. If a dSLR footprint is required, then the Canon EOS C100/C300/C500 or even the Blackmagic Design pocket cinema cams are suggested. Then there are several camcorders that use dSLR imaging chip systems and have interchangeable lens systems - like the Panasonic AG-AF100, and Sony NEX-EA50UH and others in the Sony NEX VG series, among others. They do not have the overheating or record time issues and are designed to capture video and audio.

I understand these are more than the T3i. But what you are planning to do is the equivalent of using a sedan to transport large items instead of a truck. It may be able to do the job, but the work-arounds could cause far more problems. As flyingtiggeruk indicated, "If you want to record long duration videos get a camcorder." This is wise advice...

This does not mean the lower end dSLRs can't capture great video - they can, but your expectation of running over 30 minutes of continuous video capture is well above the known spec. In my experience, I have seen that one mark of a good photographer or videographer (among several) is using the equipment within its design parameters. They can capture great quality video using an old cell phone because they set up the lighting and editing environments to leverage the capabilities of the small lens and high compression video.

The alternative is that you don't get to complain about problems when they happen - you knew about them and went ahead with the purchase with an assumption of a workaround that may not work. (The cool-down time is pretty long, so "pause for a few minutes between certain events" may not provide enough cool-down time - generally, the pros I know who use dSLRs for video capture have two or three of the same camera - while one or two are cooling one is in use).

Good luck.




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