Just found this, thoughtI would throw it our there, with the talk going on about lens revisions because of 25mp+ sensors coming next year.


From Photo.net

<span style="font-weight: normal;"]Apparently Canon is testing a new <strong class="highlight"]28-135 Lens. This is a direct quote I received via email.[/b]



<blockquote>


Canon is currently performing research, prototyping &amp; testing new <strong class="highlight"]28-135[/b]mm F4 L IS; less wide angle and more telephoto. Engineering says it would require 2 extra LD glass elements; shifting price to an additional $800 CAD of the original <strong class="highlight"]28-135[/b]mm MSRP. such a lens would cost and estimated $1549 MSRP. It is also Canons next generation Image Stabilization will be released; called &ldquo;IS2&Prime;, where the two additional long magnets are present, where larger float distance of separation between groups; yielding up to now 5 stops of effective stabilization; both in longitudinal and lateral vibrations will be dampened. IS2 will consume approximately 20% battery power.
</blockquote>



  • Mount: EF

  • Focal length 28 &ndash; 135 mm IS2 II

  • Maximum aperture F4.0 w/ IS

  • Minimum aperture F22

  • Lens construction 21 elements in 14 groups

  • Diaphragm blades 8

  • Image stabilizer 4-stops tested

  • AF actuator Ring USM (full-time manual focus built-in)

  • Filter diameter 82 mm

  • Dimensions (dia x len) 88.5 x 112 mm

  • Weight 730g EST.







Source: http://photo.net/equipment/canon/24-105/



If sensors get up around 28mp there will be a need for a few lens upgrades.


Steve