
It looks like the Sony 70-400mm f/4-5.6 G SSM may have slipped out a bit early. The PDF manual for this new 105-600mm equivalent has surfaced on the web. Notable in the specs is that the zoom is a twist rather than a push-pull zoom seen on similar super-telephoto zoom lenses like the Canon EF 100-400mm L.
This could be a killer telephoto zoom when matched with the Super SteadyShot IS on Sony Alpha DSLRs. Check out the full specs below and stay tuned to Photography Bay for the latest on digital cameras and lenses as we approach Photokina 2008.

[via DPR]




Nikon currently operates with two sensor formats in its DSLRs, DX and FX. Practically speaking, the FX format is the same size as the old 35mm film frame. The DX is smaller, which results in a “crop factor” of 1.5x when compared to the 35mm “full frame.” Thus, a 50mm lens appears to have the focal length of a 75mm lens on a DX camera. The Nikon D3 and D700 are FX format cameras. All other Nikon DSLRs use a DX format sensor.





O’Reilly has just announced the release of their Canon EOS Digital Rebel XSi/450D Companion. It’s $24.99 and, as the title implies, covers the functionality of the Canon Rebel XSi. O’Reilly is touting the “lessons” the book offers as an advantage to the typical user manual of do this, do that instructions on how a camera works. It’s available for