video with dslr

Hello! I'm new to this forum and a beginner photographer (like, very - I've taken 1 High School photography class and my experience is pretty much only with my iPhone and a point and shoot camera) and I'm wondering what type of camera I should get. I've been doing some research but there are so...

I primarily photograph and shoot video of horses. I recently received as a gift a new 810 and I am VERY pleased with it. Great camera! One problem I'm having is when I'm shooting video the image isn't always in focus, especially when the subject is running toward me at speed. I have tried...

I primarily photograph and shoot video of horses. I recently received as a gift a new 810 and I am VERY pleased with it. Great camera! One problem I'm having is when I'm shooting video the image isn't always in focus, especially when the subject is running toward me at speed. I have tried...