03-08-2017, 10:20 AM
A different viewpoint of the D series lenses! :o
Couplet count,
AF-20.......F2.8D 12elements in 9 groups......dead!!
AF-24...... F2.8D 9 elements in 9 groups......alive and risk free
AF-28.......F2.8D 6 elements in 6 groups......alive and risk free
AF 35.......F2.8D 6 elements in 5 groups......alive for the moment.
AF 50 ......F1.8 6 elements in 5 groups......alive but newish.
AF 85.......F1.8 6 elements in 6 groups......alive and risk free.
AF-S 500 ED..F4D 11 elements in 9 groups...alive but OMG!
Couplet count,
AF-20.......F2.8D 12elements in 9 groups......dead!!
AF-24...... F2.8D 9 elements in 9 groups......alive and risk free
AF-28.......F2.8D 6 elements in 6 groups......alive and risk free
AF 35.......F2.8D 6 elements in 5 groups......alive for the moment.
AF 50 ......F1.8 6 elements in 5 groups......alive but newish.
AF 85.......F1.8 6 elements in 6 groups......alive and risk free.
AF-S 500 ED..F4D 11 elements in 9 groups...alive but OMG!