Re: Canon TTL flash what could be worse ?
"The simple fact is that depending on a machine to make the decision will always introduce variables that the machine cannot recognize and compensate for."
Which fails to explain the immense popularity of everything from automatic transmission to, umm, auto focus?
Some situations ETTL works best, other situations manual mode is a better choice. To make a blanket statement that only Manual mode on flash is the right way is, first, wrong, and, second, eliminating a lot of the great tech we are paying for in speedlites and Canon bodies.
If you only shoot Manual with your body, you are an ideologue first, and a rather frustrated photographer second. If you ONLY shoot Av or Tv, you are going to be blowing exposure fairly often.
If you ONLY shoot at 1/60th with flash, you are failing to take full advantage of the power of the speedlite and not actually controlling ambient light without sacrificing optimal ISO. Sometimes max sync speed is best, which is 1/200th in the 5D3--especially for fill. Sometimes dragging the shutter is best for a situation.
There are times when using ETTL and FEC is faster, smarter, and more likely to produce excellent exposures (meaning with near the max amount of data in the RAW file). There are times when only manual gives enough power, dispenses with the pre-flash, and maintains consistent output regardless of distance or ambient light.
There don't have to be camps of never use this or never use that. A smart mongoose uses the right tactic for each cobra it encounters!
If you have been using flash since the 70's but haven't read excellent books (by Joe McNally, Syl Arena, Neil Van Niekirk, and several others) lately, say the past five years, then you really don't know what your speedlites are capable of, how to get the most out of them, and how to avoid frustration. And you are doing a disservice to other photographers when you browbeat them about innovation being just meaningless marketing hype.
"You young whippersnapper, all that automatic stuff is just a bunch of hooey. Real men use manual!"
The problem with being so experienced is that sometimes progress just passes you by because you think you've learned the best ways and haven't been open to better ways that have definitely been working for many, many photographers.