In the current issue of a Hong Kong local printed magazine, e-zone, a shootout on the continuous shooting and AF capabilities of the K-7, Canon 50D and Nikon D300 is made. The lens mounted on the K-7 is the DA* 16-50/2.8 SDM whereas the Tamron 17-50/2.8 is mounted for both the Canon and the Nikon.Five tests were carried out and the results of each test are as follows:-1. The first test is to