Ask Rod – “Focus Ring?”

via email – Hi Rod,I’m new to DSLR photography and video.  I bought the 550D/T2i for its great capabilities for the price — and for its video capability.

I learned quickly that, while you can get amazing depth of view, it also requires a lot of manual focusing (something I’m still getting used to).  I’ve found it quite cumbersome to stay focused on subjects that are moving (like my 1 year old son). I noticed in some of your shots in your monopod/tripod post that you have some sort of extended ring around your lens.  What is that thing called?  Do you have any recommendations?  (I was looking at http://www.indisystem.com/products/snap_gears) Do you have to get one specifically for each lens?  Are they expensive?  Does it make a big difference? Best Regards! -Jeff 

  Continue reading