In the advanced exposure modes on your canon eos 70d you can tweak autofocusing behavior through the af autofocus mode.
Canon 70d shutter button.
To see the current exposure settings press the shutter button halfway.
The following actions then take place.
Basically the camera keeps a track on the faces it can find in your scene and then once you press the shutter it focuses on the face onto which it is locked.
If you shoot 23 98 fps like i do to achieve a filmic look then set your shutter speed to 1 50.
Set your shutter speed to approximately twice your frame rate.
By julie adair king.
The canon 70d has the ability to detect and track human faces allowing you to focus on those faces quickly.
So here s the proper settings for shutter speed when shooting video with the 70d.
Bulb mode is useful for long exposure photography and should definitely be used with the canon 70d on a tripod don t try to handhold the camera an expect a decent photo in bulb mode.
This option determines whether the camera locks focus when you press the shutter button halfway or continues to adjust focus from the time you press the shutter button halfway until you press it the rest of the way to take the shot.
Bulb b is a mode wherein the camera shutter stays open for as long as you are holding down the shutter button.
I took my camera to the beach for a photoshoot with a freind but when i got home i was unable to access any of the menus view any photos or access live view shooting.
I have realised that my underlying issue is that the shutter button is being physically held down to the halfway position and the.