etc
Well-known member
Directly from Zeiss:
Meaning if you have myopia of -6 Diopters or less, you can use the device without any optical correction provided you do not have any astigmatism. I have -5.5 and a rare case where it's -5.5 in both barrels and almost zero astigmatism, which means I can transfer from using the unit without optical eyewear to using eyewear and not touching the diopter adjustment.
That plus super nice field of view convinces me this is the unit for me.
Given so many people with optical anomalies, I think -6D to as high as -8D should be standard value of diopters at infinity.
Swarovski EL has -6 on its 8.5 model and -8 on its 10x42 model. Leica - all models go to only -4 for contrast. So the new (relatively so) Zeiss SF has done well on this point.
The 8x42 Victory SF has at least -6D at infinity.
Meaning if you have myopia of -6 Diopters or less, you can use the device without any optical correction provided you do not have any astigmatism. I have -5.5 and a rare case where it's -5.5 in both barrels and almost zero astigmatism, which means I can transfer from using the unit without optical eyewear to using eyewear and not touching the diopter adjustment.
That plus super nice field of view convinces me this is the unit for me.
Given so many people with optical anomalies, I think -6D to as high as -8D should be standard value of diopters at infinity.
Swarovski EL has -6 on its 8.5 model and -8 on its 10x42 model. Leica - all models go to only -4 for contrast. So the new (relatively so) Zeiss SF has done well on this point.