Photoclubalpha

Has anyone any ideas on this subject? For instance, do the new Micro 4/3 interchangeable lens cameras (which use contrast detection AF at the picture sensor and therefore don't have camera body assembly error problems to contend with) suffer from FF/BF due to their interchangeable lenses affecting f...

I'll explain the problem a bit more clearly. When you focus a lens on a DSLR the focus is checked at the AF sensor and, if the camera confirms that the lens is in focus that should be as near as that lens can be made to focus. There may be then a problem with focus at the photo sensor if the camera ...

This is a technical question related to FF/BF. I always thought this was caused by the camera being inaccurately assembled (i.e. the light path length from the lens to the AF sensor is of a different length than from the lens to the photo sensor). So why is it that camera manufacturers give the opti...