Bassat wrote in post #17817415
Perhaps you need a really strong cup of coffee.
All of Canon's dSLRs from the T1i (500D) forward are capable of AUTO-FOCUS WHILE RECORDING VIDEO. I don't know how else to put that. STM lenses are a clear advantage in video mode NO MATTER WHICH BODY you have them mounted on.
The 60D was most certainly NOT released before the 500D. The 500D was released in March of 2009. I bought one. The 60D was released in August of 2010. I bought one of those, too.
You are correct that the SL1 can do continuous focus while in video mode. I was not aware of that. That does not change the fact that all Canon digital SLRs since the T1i in 3/2009 have been capable of auto-focus in video mode.
I take your point about the free-floating focus mechanism of STM lenses. That will surely be a matter of tastes.
well I messed up in thinking the 60D was older than it is and that put everything i was trying to say in the wrong context.
but i still find the 6D, and other EOS cameras that use contrast detect AF to be almost useless in the real world.
If your needs end at designating one AF area of the frame via the multi controller, and then telling the camera when to change focus by doing a half press (or pressing some other dedicated button) i guess it is mostly sufficient, and yes, it will benefit by using a STM lens. I still think it is a kludge that often gives choppy and limited AF function regardless of the lens being used.
I bought the SL1 recently to provide continuous AF during recording and in my minor testing so far, have been happy with the results. I am by no means a heavy video user, so take all this with that in mind. In my experience, MF with a decent, damped lens is a better option than the single area contrast detect AF found in most cameras. The SL1 hybrid AF combined with touch screen is the next step up.
Back to the OP's question, with the 60D, IS is much more important to nearly all video when the camera isn't sitting on a tripod. The benefits of an STM lens on your camera are arguable. If you are going to be happy using contrast detect AF, it will provide smoother focus while still doing some minor hunting at the beginning of the focus change. If you are going to be doing MF operations, a smooth,damped focus ring that is wider than the typical 4 millimeters of an STM lens, is the way to go. YMMV.
PSA: The above post may contain sarcasm, reply at your own risk | Not in gear database: Auto Sears 50mm 2.0 / 3x CL-360, Nikon SB-28, SunPak auto 322 D, Minolta 20