Nikon AF-S DX Micro-NIKKOR 40mm f/2.8G VS Nikon 60mm f/2.8G ED AF-S Micro-Nikkor?

Can someone tell me the difference between these 2 lenses? And Which one is better? Did Nikon discontinue the 60mm?

The difference is 20mm and the fact that the 60 is full frame.

Now whatever is best for you depends on what you want to do

The 60mm micro lens gives you a better working distance from your subject plus it makes a good portrait lens on a cropped sensor DSLR like the D40, D60, D3000, D3100, D5000, D5100 or D7000.

Nope, both are extremely sharp, the 40mm is just made only for DX cameras and is cheaper, plus lighter. Quality is the same, so is auto focusing speed.

Here's a Nikon Macro Guide - http://www.the-dslr-photographer.com/2011/07/buying-a-micro-lens-nikon/

I have both the Nikon 40mm micro and Tokina 100mm macro lenses.

Between the two, the Tokina is more traditional in terms of a macro. They both do 1:1, but the Tokina allows me to have further distance from the subject - bugs and the like won't be scared as much.

But the #1 problem with macro is the wafer-thin DoF, which is shorter on the 100mm. The 40mm gives you a relatively deeper DoF.

However, with the 40mm, you have to get so close for 1:1 that you are often blocking the light with the lens, so it is almost not useable at that magnification.

Why do I have both?

If I want to do serious macro, I use the 100mm Tokina and a Nikon R1 macro flash.

If I want a lightweight lens when I'm on vacation or travel, I take the 40mm Nikon without the R1 flash. It gives me a nice prime lens as well as having macro capability in a smaller package.

While you might think that odd that the lenses are not really that different, when I add the bulk of the R1 for the Tokina, it takes a significant amount of space in my camera bag.

While I can't get quite as close with the 40mm given the lighting issue (especially when the R1 is just too bulky for travel), it is close enough for general closeup.

(by the way, the R1 can also be used with the 40mm, I just chose not to use it with that lens)