So I've been playing with the 35-90 and I knew that closish focusing wasn't going to compare to my 24-70 but I seem to be bumping up to the limit to where I would ideating like to focus on close portraits. I understand that the macro converter can't be used on this lens (why, has anyone tried in real world, will you just get an error?), but how will extension tubes perform with this lens?
Thanks,
Craig