Lensometer corona target combines an excellent ocular type external reading system with very clear target screen. The instrument can be moved from 30° to 90° for getting an exact view of the corona. It also consists of high power magnification for sharp and bright corona focus.
Specifications
type : ocular type external reading system
vertex power range :± 25d step : 0.25d step up to± 10d 0.50d step beyond ± 10d
cylindrical axis scale :0 to 180° (1° step)
prismatic power range :5 in the view field (1 step)
target :pinshole corona
eyepiece focusing :+ 3d to -5d
diameter of lens accommodated:30 to 80mm
tilting angle :30° to 90°
light source :ac 220v

Lensometer corona target combines an excellent ocular type external reading system with very clear target screen. The instrument can be moved from 30° to 90° for getting an exact view of the corona. It also consists of high power magnification for sharp and bright corona focus.
Specifications
type : ocular type external reading system
vertex power range :± 25d step : 0.25d step up to± 10d 0.50d step beyond ± 10d
cylindrical axis scale :0 to 180° (1° step)
prismatic power range :5 in the view field (1 step)
target :pinshole corona
eyepiece focusing :+ 3d to -5d
diameter of lens accommodated:30 to 80mm
tilting angle :30° to 90°
light source :ac 220v