The filter size for the Nikon D3300 lens is 52mm.
The filter size for the Nikon 18-140 lens is 67mm.
The filter size for the Nikon 18-200 lens is 72mm.
The filter size for the Nikon 18-55mm lens is 52mm.
The filter size for the Nikon 50mm 1.8 lens is 58mm.
The filter size for the Nikon D3300 lens is 52mm.
The filter size for the Nikon 18-140 lens is 67mm.
The filter size for the Nikon 18-200 lens is 72mm.
The filter size for the Nikon 18-55mm lens is 52mm.
The filter size for the Nikon 50mm 1.8 lens is 58mm.
The filter size for the Nikon 55-300mm lens is 58mm.
The filter size for the Nikon 70-300mm lens is 58mm.
The best 52mm lens filter for a Nikon camera is the BW 52mm XS-Pro Clear MRC-Nano 007 Filter.
Yes
The recommended size for a camera lens filter is 32mm.
The best polarizing filter for a Nikon 18-55mm lens to improve photo quality is the BW XS-Pro Digital HTC Polarizer.
For the Nikon DX Nikkor 18-55 mm (the one that comes with the D3100) the UV filter is installed immediately after installing the lens itself. Being outside the lens, it will protect the lens as well as improve the quality of outdoor photos.