01-07-2020 05:55 PM
Solved! Go to Solution.
01-07-2020 06:15 PM - edited 01-07-2020 10:58 PM
What are the "other lenses" that are fine on video? With the possible exception of STM lenses, I didn't think that any lenses auto-focused in video on a T6i.
01-07-2020 09:44 PM
There is something you are not telling us, so I will tell you, instead. No, I do not think you are trying be deceptive. It is more like the camera does not behave you seem to assume it does. Mainly, I do not think the T6i has a Movie Servo AF mode, which means it does not do "AI Servo" like subject tracking in Movie Mode. KV, correct me if I am wrong.
Without knowing more about your shooting conditions, I cannot say why you get your worse results with super wide angle lens.
01-07-2020 10:15 PM
Correct, one of the few improvements of the T6S over the T6i is video focusing. However, neither is as good as the T7i which has the phase detect on sensor.
In this case though, I think the OP wants to use Av mode and set a shutter of f/8 or f/16 for a wide DOF - which should be easy with a wide angle lens (though 16mm is not particularly wide on a crop sensor. That is why they made the EF-S 10-18). You will prbably need more light.
01-08-2020 04:47 AM
The 10-18 is cheap enough to give it a try as well. Thanks for all the fast input.
The EF-S 10-22mm is a much better built lens. It has both internal focusing and zooming, and an all metal body.
With a camera body that cannot do subject tracking in movie modes, then it is perfect for doing the type of "head shot" videos that you see all over YouTube. Always be aware of your available Depth of Field whenever you are shooting. I see people shooting at f/16 when they could have had nearly the same results at f/5.6.
01-08-2020 10:34 AM
"... I don’t seem to have an issue with any but the 16-35. It has me puzzled for sure."o
Well for sure if you said almost any other Canon lens besides the ef 16-35mm f2.8L, I would be puzzled too. I don't video so I am no help there. Perhaps little help elsewhere also but the one lens in my Canon inventory that I never use any more is the ef 16-35mm f2.8L It is a huge disappointment and surprise.
I like the suggestions from above that recommend the ef-s 10-18mm or ef-s 10-22mm not that I can claim either is a good lens, never having either, but they have to be better than the ef 16-35mm.
01-08-2020 10:21 PM
01-09-2020 05:15 AM
I did a few tests today. If I sat still in front of the camera like I was doing an interview, the focus was just fine. I could pan side to side using a tripod and as long as I moved extremely slow, focus was fine. If there were anything moving very fast or pan at a moderate speed, everything was out of focus. I think the lens just can’t focus fast enough to keep up with the movement. I think I’ll get the EF-S 10-22mm and see if that’s better. Thanks everyone for all the input!!
The lens can focus plenty fast enough. It is your camera body that is NOT refocusing in movie mode. If you believe that your other lenses are refocusing in movie mode, then I suggest that you retest them..The T6i is incapable of Movie Servo AF.