mutleybird
Senior Member
The Pentax version will be released in June. Sigma has its own quality issues, and Tokina just codesigns together. The Pentax version of this lens will be built on the Pentax assembly line with the SMC coating, motor and Pentax quality control. Here are some sample pics with a pre-released example of that lens on a Pentax K10D"So I take it that you've never tried the pentax version as well ?Canon version does not have SSM or HSM or motor inside the lens.
Only the Pentax version does.
Any correlation between SSM or HSM vs other motor/non-motor on
focusing accuracy ? Some sigma has HSM inside yet its samples are
notorious for focusing problem.
http://nedbunnell.blogspot.com/2007/03/test-photos.html
Look at the large versions and see what you think.
Larry