<p>I did quite a bit of side-by-side testing with the Df between AF, Focus Indicator, and Matt Screen focusing with several focal lengths and speeds. AF was always the most consistently accurate, Focus Indicator and Matt Screen were generally tied for second place, and hard to decide between the two.<br>
<br /> One good thing about the Df is that the diopter adjustment has finer click gradations (than the D800), so I could get a sharper viewfinder image, and could therefore Matt Screen focus more easily.</p>
<p>Don't go by what I say because eyesight, lenses, subjects, and personal preferences come into play. But, I always AF unless I use a MF lens, and then I Matt Screen focus that (slowly and carefully). If it's a wide lens, then I scale focus and rely on depth of field.</p>
<p>My tests never indicated that the Df was easier or more accurate at Matt Screen focusing than the D800. Many say that it is, but that has never been my experience.</p>
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