A dioptric adjustment dial at the top-right of the eye-piece accommodates eyeglass wearers, letting them adjust the viewfinder optics between -3.0 to +1 diopters. Viewfinder coverage is specified ...

A dioptric adjustment dial accommodates eyeglass wearers, letting them adjust the viewfinder optics between -2.5 to +0.5 diopters, a rather shorter range than with most of Canon's DSLRs.

Guided by preoperative corneal topography, patients with varying degrees of corneal astigmatism can be placed into a variety of dioptric categories. These categories dictate a systematic ...

An open dioptric sight with fixed firing range settings at 250 and 400 meters and a removable handle that is used for ...

We can enhance details by turning the focus wheel at the front, obviously, but also fine-tune the image by rotating the ...