Thinking of buying a macro lens for my D90. Prices vary around the $500 mark (in places like on line stores) a 60mm F2.8. I was thinking a lower F-Stop would be better like 1.8 or lower but nothing's available with a similar focal length. Most of the ones with a lower F-Stop are 22mm. Is a larger focal length better (but then the F-Stop gets bigger too).
Any suggestions please...