Have you snapped an incredible photo of wildlife? Post a favorite photo you've taken and share the story behind the image. Be sure to include the Canon gear you used!
About this photo:
Camera: Canon PowerShot G3 X
Exposure Time: 1/125
Will this Lens fit the T3?
There really isn't a yes or no answer to that.
Yes, the EF 100-400mm F4.5-5.6L IS II USM will mount and Auto Focus on the T3.
When used with an Extender EF 1.4X III like in many of my photos the lens' maximum aperture becomes f/8 and will not Auto Focus on the T3.
Also the T3 is a smaller and lighter camera. Extra care would need to be taken to ensure that the lens didn't over stress the camera's lens mount.