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Message: <blockquote data-quote="spb_stan" data-source="post: 682002" data-attributes="member: 43545">What are you shooting that need super sharp detail, surely not people. How are are you printing. The question is too general. It is pretty obvious for sharpness corner to corner the new Z mount lenses beat out the F lenses wide open. How far can you stop down to meet the sharpness criteria, and how much do you like manual focus?  The best primes in F mount are the manual focus but they might not be best in the aperture or color departments.  The Sigma ART 50 is very good when stopped down to f/4, The 85 1.4 is better for people due to the compression effect, but the 105 1.4 has the best look in people shots. Many times the sharpness issue is not inherent lens sharpness but technique. Better light will always trump lens, shutter speeds out of the mirror slap velocity has a lot of bearing on sharpness.How are you determining sharpness?  Zooming in 100% is how most determine sharpness but that is a had habit that actually hurts good photos. Good micro-contrast and enough light seeing at normal viewing distance and size tells you all you should care about and the best looking images at normal viewing image size often has no connection to the detail seen at 100%. So the answer is...it depends...one that has the best edge contrast will often look shaper as a full image than a higher resolving lens that looks best at 100%.Often the question is not the question one really wants to be answered. Sharpness is one trait of many that combine to give the impression of detail fidelity.</blockquote>

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