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Message: <blockquote data-quote="hollis_f" data-source="post: 1715820" data-attributes="member: 14566">Someone screwed up the money side of things. Either marketing grossly over-estimated the extra cash people would pay for a smaller, lighter lens; or managment decided that the huge amount spent on R&D for DO optics had to be recouped solely from sales of Do lenses; or the actual costs of building these things was grossly under-estimated.Whatever happened, the outcome is that not many people are willing to pay the inflated prices Canon are asking for their two DO lenses. Let's look at the options:70-300 DO - £1,137. That compares to the 70-300 (£419) or the 70-200 f4 L IS (£920). Now the cheaper 70-300 is lacking in things like FTMF, but it does have comparable IQ, better IS, and is a hell of a lot cheaper. And for less than the DO you can get what is, possibly, Canon's best zoom lens in the 70-200.Then there's the 400mm DO - £5600!!! It's a nice-looking lens and I'd love to own one. But for that price I can get a 300 2.8, 400 5.6 and a 1.4x TC.Until they get the prices of these things sorted then I'm afraid they'll continue to be a dead end.</blockquote>