For Viewfinder - Pentax *istDL2 Operating Manual

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Off-camera Shoe Clip CL-10
This is a setting clip for using the AF360FGZ as a wireless slave flash.
Hot Shoe Adapter F
G
Extension Cord F5P
Off-camera Shoe Adapter F
Use the adapters and cords to use the external flash away from the
camera.

For Viewfinder

Magnifier FB
This viewfinder accessory is for magnifying the central area of the
viewfinder.
Ref-converter A
This is an accessory that changes the viewfinder viewing angle at 90°
6 intervals. The viewfinder magnification can be switched between 1× and
2×.
Diopter correction lens adapter M
This accessory adjusts the diopter. Install it on the viewfinder.
If it is difficult to see the viewfinder image clearly, choose one of the eight
-1
correction lens adapter M of –5 to +3 m (per meter).