Lensbaby

[girishmenon]

<p>If I fix a Lensbaby Composer Pro with Edge 80 Optic for Nikon F mount to a Canon EOS body via a Nikon - Canon adapter that has a focus confirmation chip on it, will the focus conformation bit work?</p>

[alan_bryant1]

<p>My guess would be sometimes, but not dependably. The Lensbaby's tilting and shifting tends to confuse the light meter and might well confuse the AF too.</p>

[bobatkins]

<p>I'd agree. It <em>should</em> work OK (i.e. as well as it does with any lens) most of the time with the lens set between f2.8 and f 5.6, and probably OK even with the lens tilted as long as you use the center focus point.</p>

[JDMvW]

<blockquote>

<p>It <em>should</em> work OK (i.e. <strong><em>as well as it does with any lens</em></strong>) [emphasis added, JDM]</p>

</blockquote>

<p>Trust your eyes.</p>

<p>Unless you have cataracts or other actual problems, the so-called "focus confirmation" chips aren't worth the trouble and risk. I do manual focus all the time on EOS cameras from old EOS filmies* to early APS-C (20D) to 35mm sensor Canons.</p>

<p>*I thought this was a felicitous new term for old film cameras, but a Google™ search reveals that it is already well established, at least referring to the people shooting film. :(</p>