http://www.nikonchat.com/nikon-60mm-macro-portrait/

Difference between 50mm, 60mm and 105mm lenses?
Ok. I am using a Nikon D50. What are the differences between a 50mm lens, a lens 60mm, and 105mm? Are all 3 jobs for portraits and macro? what is used for each type? I know that the focal lengths are differnet, but the differences re Whare in terms of the type of shot I can take?
They are just different focal lengths. I doubt you own any lenses, or simply place it in his D50 and see how it looked. These lenses are useful, but you may not want both mm, 50 and 60, as they are quite close to the focal length. There would be other factors involved in its decision, including the maximum opening or glass quality. A macro lens being called "macro" or "micro" in some place in the barrel of the lens. A macro lens will focus very close allowing you to obtain a high magnification of the subject. Nikon has both macro lenses 60 and focal length 105 mm, but will have to be sure the goal you're seeing is specifically a "macro" or "micro" lens. The "classic" Lens on 35 portraits of film cameras is a target 105 mm mm. This allows you to get some distance from the subject so the camera is not as intimidating. Also, "flatten" things a bit, and allow to launch the fund out of focus a bit easier than a 50mm lens would be. In the D50, there is a 1.5x factor increase due to the sensor smaller than a full format of 35 mm. This means that 50 mm would be equivalent to "35 mm" 75 mm. This means that 60 mm would be an equivalent of "35 mm" 90 mm. The 105 mm would be equivalent to "35 mm" of about 160 mm. I bet a currency that the 60 mm lens you 're seeing is a macro lens from Nikon, with a maximum aperture of f/2.8. I have this goal and I love it. You can make a wide range of photography in general he. In an effective 90 mm, is considered a mild telephoto. Lets you work at a distance from his subject for the portrait, and goes to a 1:1 ratio (the best) for macro work. This target must be locked in the minimum opening before you install it on your D50, but a single click. You have to do that to preserve all the automatic functions lens. I'll guess that 50 mm is a classic "prime" lens with a maximum f / stop of f/2.0 or 1.4. If so, this is really good for low light situations. In the D50, it would be a very mild telephoto. If you want a single Prine focal length lens for the D50, looking something like a 35 mm lens with an aperture of f/2.0. I used to think that any student of photography really needed to master the use of the lens first before they can progress to a goal zoom, but I guess that is the philosophy of a different era. Another currency bet that the 105 lenses you are looking at is another macro lens. You can not get a picture bigger than you can with the 60 mm, so if you are looking for a macro lens, I like about 60, and 105. When one considers that the 60 mm costs about $ 400 and costs of 105 mm around $ 650, this is a decision that could be done for you. On the other hand, if money is not important, reducing vibration new 105mm f/2.8G ED-IF AF-S VR is a goal to covet. The VR really help for Sharp macro images. The only downside of this objective is that it costs over $ 800 and is difficult to find in any store. Are you having fun yet?
Macro Photography Tutorial