Hi John,
The other two FA lenses I have appear to focus more precisely.
However, the error may be covered by the larger DOF, as both are
slow zooms (f/4 - f/5.6). The 80-320/4-5.6 in particular appears to
focus consistently on the same point, regardless of the initial
focus position.
The problem I experience with FA 50/1.4 is focusing closer than
infinity on far-away objects. The error varies with initial focus
point, ambient light, spot or wide area sensors, but is always
visible both in viewfinder and on slides. To make it even stranger,
if I manually set focus at infinity, then switch to AF, the camera
will still force a closer focus point.
With closer subjects (under 5 meters), the camera-lens combo always
focus precisely and consistently. This and the fact that I shoot
landscapes on manual focus make me consider the above just a minor
annoyance.
BTW, the MZ-5N is indeed a great manual focus camera! Spot meter,
TTL flash and even [shields on!] the great viewfinder concur to this.
Servus, Alin
John wrote:
JAH> I noticed you observed the same with the same lense. Have you any other
JAH> AF lenses to test with for focus error? Unfortunately the AF50 is the
JAH> only one I have. All my other lenses are MF. In fact even the 2 news
JAH> ones I just bought are MF! (yes... I know... Why buy the 5n if I have
JAH> not AF lenses? Answer... The M is like my K-1000.. And I wanted some
JAH> newer features like bracketing and what not... Plus the ability to use
JAH> AF if/when I buy such lenses. Plus, that pop-up flash comes in handy
JAH> sometimes!)
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