![Leica - Correction Lens II (-1.0 Diopter) Leica - Correction Lens II (-1.0 Diopter)](https://cdn11.bigcommerce.com/s-f9fok/images/stencil/370x488/products/12252/20563/1484769173000_1312557_1__36199.1495211378.jpg?c=2)
If you are far-sighted and need to change the optics of the M10's 0.73x optical viewfinder, this Correction Lens II from Leica will provide a +1.0-dioptric adjustment. This will help shooters more comfortably use the camera, in some instances permitting use without the need for glasses.