Mike Holmes wrote:
I am currently using a Canon 90d dslr camera. I watched a video buy a landscape photographer showing how he used the rear screen to insure perfect focus. He would magnify the image on his rear screen and set his focus and then recompose the image keeping his focus setting and taking the image. He was able to insure his focus was perfect. I am not able to magnify my image prior to taking my photo with my canon 90d. What am I doing wrong?
You can put your camera on "live view" if the 90D has that option - i don't have one so don't know.
Zoom in on your subject with the shutter button half way down - achieve focus on what and where you want it. Keeping the focus button half way down zoom out to your required composition and complete pressing the shutter button.