Does the nose rack of the UB 4 also fit on the UB 6?
No, the nose racks differ in design, so they cannot be switched between the UB 4 and UB 6.
In which slot should the reference lens be when measuring VD?
DIN EN ISO 1366 defines VD as follows: absolute value of the distance between the rear surface of the spectacle lens and the corneal apex measured along the line of sight, i.e. orthogonally to the plane of the rim. The ...
How can I read the current vertex distance (VD) free of parallax?
The transparent sighting bar has one scale on its surface and one inside. Take your VD reading when you see the two scales in alignment. The millimetre values on the scale refer to the eye-side vertex of a trial lens ...
How much do the OCULUS Universal Trial Frames weigh?
UB 6: approx. 61 g UB 5: approx. 48 g UB 4: approx. 64 g UB 3: approx. 58 g UB 3+: approx. 52 g (10 % lighter than the UB 3) note: specifications are subject to change!
Are the nose pads interchangeable within the OCULUS Universal Trial Frame family?
Yes, with the exception of the UB 3.
How many nose pads are delivered with the OCULUS Universal Trial Frames?
UB 6: four nose pads in total UB 5: three nose pads in total UB 4: three nose pads in total UB 3+: two nose pads in total
Does the lens holder of the UB 4 also fit on the UB 6 and vice versa?
No, each lens holder is designed to precisely match the trial frame it is intended for, so the lens holders cannot be switched between the UB 4 and UB 6.
Does the nose pad of the UB 4 also fit on the UB 6 and vice versa?
Yes, the nose pads of these two models are interchangeable.
Does the polarizing filter of the UB 4 also fit on the UB 6?
No, each polarizing filter is fine-tuned to the design of the trial frame it is intended for, so it cannot be switched between the UB 4 and UB 6.
Does the polarizing filter of the UB 6 also fit on the UB 4?
No, each polarizing filter is fine-tuned to the design of the trial frame it is intended for, so it cannot be switched between the UB 6 and UB 4.
Does the nose rack of the UB 6 also fit on the UB 4?
No, the nose racks differ in design, so they cannot be switched between the UB 6 and UB 4.
Do the end-pieces of the arms on the UB 4 also fit on those of the UB 6?
No, the end-pieces differ in design, so they cannot be switched between the UB 4 and UB 6.
