Sony alpha ILCE-5100 Help Manual page 267

Help Guide
How to Use
Interchangeable Lens Digital Camera
ILCE-5100
Release w/o Lens
Sets whether or not the shutter can be released when no lens is attached.
1. MENU → (Custom Settings) → [Release w/o Lens] → desired setting.
Menu item details
Enable:
Releases the shutter when no lens is attached. Select [Enable] when attaching the product to an astronomical telescope,
etc.
Disable (default setting):
Does not release the shutter when a lens is not attached.
Note
Correct metering cannot be achieved when you use lenses that do not provide a lens contact, such as the lens of an
astronomical telescope. In such cases, adjust the exposure manually by checking it on the recorded image.
4-543-698-11(1)
Copyright 2014 Sony Corporation
259