Nikon D300 User Manual (en)

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Viewfinder 
eyepiece 
accessories
• Diopter-Adjustment Viewfinder Lens DK-20C: To accommodate 
individual differences in vision, viewfinder lenses are 
available with diopters of –5, –4, –3, –2, 0, +0.5, +1, +2,  
and +3 m
–1
. Use diopter adjustment lenses only if the 
desired focus can not be achieved with the built-in 
diopter adjustment control (–2 to +1 m
–1
). Test diopter 
adjustment lenses before purchase to ensure that the 
desired focus can be achieved.
• Magnifying Eyepiece DK-21M: The DK-21M magnifies the view 
through the viewfinder by approximately 1.1× (50-mm 
f/1.4 lens at infinity; -1.0 m
–1
) for greater precision when 
framing.
• Magnifier DG-2: The DG-2 magnifies the scene displayed in 
the viewfinder. Use for close-up photography, copying, 
telephoto lenses, and other tasks that call for added 
precision. DK-22 eyepiece adapter (available separately) 
required.
• Eyepiece Adapter DK-22: The DK-22  is used when attaching 
the DG-2 magnifier to the D300.
• Right-Angle Viewing Attachment DR-6: The DR-6 attaches to the 
viewfinder eyepiece at a right angle, allowing the image 
in the viewfinder to be viewed from above when the 
camera is in the horizontal shooting position.