For Discussion: What is the one question about photography that you would like an answer to?

So, what is the one question about photography gear or photography techniques that you would like an answer to?

Questions can be at any level of difficulty – from easy to impossible to answer. Please post your question on our Facebook page or send us an email if you'd rather not ask your question in a public forum. We'll be looking at and attempting to answer as many questions as we can!