Imaging recource: Soviet-era 1100mm f/10.5 mirror lens provides a lot of reach without breaking the bank (or your back)

We've covered reviews of some pretty weird lenses in the past, but this latest one from Christopher Frost really takes the cake. Frost reviews a Soviet era MTO 1000A 1,100mm f/10.5 mirror lens, which he has attached to his Canon 6D and 60D cameras. It can be difficult to wrap your head around just how long 1,100mm is in practice; we're talking about a field of view of 2.5 degrees. In a masterpiece of understatement, Frost calls this a "specialist" lens and says that you'll need a sturdy tripod to get good use out of it. The fixed aperture of f/10.5 limits...
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