I have this lens. When I use it for portrait photos, I have to keep a long distance. Can anybody suggest a wide angle lens adapter for this lens? Thanks!
For general single-person portrait use the most pleasing perspective comes from using a slight telephoto lens and stepping back some. This perspective avoids distorting facial features, such as the elongation of face and nose from wide angle lenses or the flattening of these features with a longer telephoto.
For a film-based 35mm camera the most pleasing perspective comes from a lens of about 85 mm. For a digital camera with the DX sensor this is about equal to the 60mm lens tha you have.
I know of no wide angle adapter for this lens. If one were available it would be very expensive and STILL degrade the image quality significantly, which would be a really poor application of this particular lens.
If you really want to get closer or take group portraits I would suggest adding another lens, such as:
Nikon 18-55mm f/3.5-5.6G ED II AF-S DX Zoom Lens
This can be purchased for between $99 and $197 at Adorama depending on which options (i.e. grey market, refurbished, vibration reduction, etc.) you choose. You will get much better portraits with this lens than any adapter would yield on the 60mm lens, for not much more expense than a really good filter/adapter. In addition, you would build more flexibility into your lens collection.
This is just one example. Other lenses would also offer similar advantages but at more cost.