Nikon HB-39

The fitting is very clumsy: it falls off frequently. Happened to me twice before.

Although Nikkor 18-300mm f/3.5-6.3 and Nikkor 18-140mm f/3.5-5.6 have the same diameter and the minimum focal lenght (18mm), Nikon specifies two different lens hoods (HB-32 for the 18-140 and HB-39 for the 18-300). The HB-39 is also used in Nikkor 16-85mm lens, so the correct lens hood for the 18-300 should be the HB-32.

The HB-39 hood does its job. It is a snug fit and the fact that it is reversible saves space in the camera bag.

Attaching the hood to the lens is not effortless, as one would need in a pinch. Also, the hood pops off at the slightest provocation, and there is a removable plastic piece on the sidewall not mentioned in the product details that pops out as well. This piece can get lost and is not replaceable as far as I can ascertain. Cheaply made, not worth the price.

Best fit of any bayonet hood. Detaches and reattach flawlessly. Great product. Highly recommend this to anyone.