11-08-11, 11:35 PM
The theory is that because Sony and Pentax have their shake reduction technology built into their camera bodies, lenses for them should be cheaper than those made for Canon and Nikon DSLR's, as these have the shake reduction in the actual lens. In practice I find this to be completely untrue. At best third party lenses are the same price for all four manufacturers. Very often those made for Pentax and Sony (if available at all) are at a higher price. The most extreem example of this I have come across is the Tamron SP 70-300mm F/4-5.6 Di. In a well known camera retailer's brochure, this lens is available in a Canon or Nikon fit for £169.95 whereas for a Sony or Pentax the same lens would cost £369.95. A staggering 218% increase! This is made all the harder to understand when the same manufacturer supplies the SP 10-24mm f/3.5-4.5 Di II at the same price for all 4 fits. Answers anyone?