22En7. Built-in rotating tripod collarWhen shooting vertical pictures, loosen the tripod collar lock screw by turning it counterclockwise,rotate the lens to an appropriate position, then tighten the screw clockwise.• When holding the camera by its handgrip and rotating the camera with the lens in its tripod collar,your hand may bump into the tripod, depending on the tripod in use.Note: It’s possible to detach the tripod collar by removing the tripod collar lock screw. For detailson this procedure, contact your nearest Nikon service center or representative office.8. Lens hood HK-30Tighten the lens hood screw securely when using the lens hood. To store the hood, place it in thereverse position and tighten the screw securely.9. Slip-in filter holder (Figs. A, B)Always use a (52mm screw-in) filter. Be sure to screw in the provided Nikon NC filter into thesurface of the filter holder where “Nikon” and “JAPAN” indications appear. It is recommended touse an L37C filter (optional) to cut ultraviolet rays and a C-PL1L slip-in circular polarizing filter*(optional) to cut unwanted reflections from nonmetallic surfaces such as glass and water.1 Press down on the slip-in filter holder knob, and turn counterclockwise until the white line on theknob is at a right angle to the axis of the lens.2 Pull the slip-in holder out and screw in the filter into the holder.• The slip-in filter holder can be attached either facing lens or camera side without having any effecton your pictures.* The focus point of the slip-in circular polarizing filter differs from that of a 52mm screw-in filter.The distance scale is shifted from the correct position. The closest focused distance isextended slightly.With Focus preset, the Memory set position may change slightly. First, focus on the subject,then perform Memory set again.■Gelatin filter holderThe dedicated gelatin filter holder supplied with the AF-S Nikkor 300mm f/2.8D IF-ED II lens can beused with the AF-S VR Nikkor 300mm f/2.8G IF-ED. This filter holder is not available separately.Please contact your nearest Nikon service center or representative office for more information.