424nOther AccessoriesAt the time of writing, the following accessories were available forthe D5.Power sources• Rechargeable Li-ion Battery EN-EL18a (0 19, 22): EN-EL18batteries can also be used. Additional EN-EL18a batteriesare available from local retailers and Nikon servicerepresentatives.• Battery Charger MH-26a (0 19, 468): The MH-26a can be usedto recharge and calibrate EN-EL18a and EN-EL18 batteries.• Power Connector EP-6, AC Adapter EH-6b: These accessories canbe used to power the camera for extended periods (EH-6aand EH-6 AC adapters can also be used). The EP-6 isrequired to connect the EH-6b to the camera; seepage 430 for details.Filters• Filters intended for special-effects photography mayinterfere with autofocus or the electronic rangefinder.• The D5 can not be used with linear polarizing filters. Usethe C-PL or C-PLII circular polarizing filter instead.• Use Neutral Color (NC) filters to protect the lens.• To prevent ghosting, use of a filter is not recommendedwhen the subject is framed against a bright light, or whena bright light source is in the frame.• Center-weighted metering is recommended with filterswith exposure factors (filter factors) over 1× (Y44, Y48,Y52, O56, R60, X0, X1, C-PL, ND2S, ND4, ND4S, ND8, ND8S,ND400, A2, A12, B2, B8, B12). See the filter manual fordetails.
