Is it really diffraction that lowers the MTF performance at small apertures – or something else?

Here are some more results examining the effect that image stabilisation technology has on lens resolution.

What Digital Camera Advent Calendar. Every day features a great free gift, discount or download.

The ability to create unusual background effects in pictures is not confined to digital manipulation: all you need for one particular background effect is a piece of black paper or…

Colour management: a typical LCD will allow you to check for sharpness and give you a fairly good idea of the tone and colour, but you can never fully appreciate…

This issue will run and run but here, once again, is a look at the question of whether full-frame or APS-C sensors get the best quality from any given lens.