Just sharing my personal experiences.
I have shot with 550D. After about 10mins, there is this symbol blinking indicating overheat. So I stopped. I have shot with 60D. The longest I have recorded with 60D is 45mins until the symbol came out and blinked. For 60D, its longest recording time is 29mins. The problem is the cooling down period. You are advised to switch off the camera to cool down and switch on again to record. I really need to wait about 3-5mins to switch on again if not, the symbol will still be blinking when the camera is switch on. That 3-5mins could be the longest minutes if you are in the middle of shooting.
Mantiz>>> I am using Canon 60D with Samyang 35mm lens. I like its bokeh or shallow depth of field.
I have shot with 550D. After about 10mins, there is this symbol blinking indicating overheat. So I stopped. I have shot with 60D. The longest I have recorded with 60D is 45mins until the symbol came out and blinked. For 60D, its longest recording time is 29mins. The problem is the cooling down period. You are advised to switch off the camera to cool down and switch on again to record. I really need to wait about 3-5mins to switch on again if not, the symbol will still be blinking when the camera is switch on. That 3-5mins could be the longest minutes if you are in the middle of shooting.
Mantiz>>> I am using Canon 60D with Samyang 35mm lens. I like its bokeh or shallow depth of field.