I have just ordered another lens for my Nikon kit. I have been thinking for some time that I need a standard lens. Something that has a 50mm focal length, fairly fast, light and small enough to take on holiday together with a small zoom.
Right from the start I wasn’t going to get a lens specifically for my D800. When I go abroad I will be taking the D7100 and the 24-85 f/3.5-4.5 FX lens. This lens then becomes a 36-127 zoom on the DX APSC sensor camera. So if I was to buy an FX lens that will be as a 50mm (or approximately so ) on a DX camera I would have to buy a 35mm prime lens in the FX format. This would then in effect become a 52mm lens on the D7100. I could of course get a 50mm FX lens but that would become a 75mm lens on the D7100. Great for portraits but not strictly a ‘standard’ lens. I also don’t mind admitting that part of the attraction of f/1.8 standard lenses are their attractive relatively low cost to performance ratio and so buying a more expensive wide-angle prime in FX such as the 35mm would defeat the object.
To that end I decided to buy a DX lens and the 35mm f/1.8 fits the bill nicely. At 35mm, it is the equivalent of a 50mm standard on a full-frame sensor camera. It has had excellent reviews and together with the 24-85 zoom, it will provide a small, light and adaptable travel kit for the D7100.