Optional accessory for Straight Viewfinder Unit II for X-2.
Add-on correction lens to shift +1.5 diopter for those who are unable to adjust with camera’s viewfinder diopter adjustment range due to long sight or presbyopia.
The Diopter Correction Lens is to be installed before diving by drop it inside of the Straight Viewfinder Unit II from housing side and tighten it by packaged tool (not changeable underwater).
---Tips of diopter adjustment ---
Under bright circumstance on land, human eye’s pupil shrinks making diopter adjustment easy as depth of field is deep while the adjusted viewfinder may not get perfect focus and hard to see viewfinder image when the pupil gets open in dark underwater as the depth of field gets shallow especially with presbyopic eyes due to deteriorated focusing function (Though it varies among different individuals or age, it takes about 15 minutes to open pupils by dark adaption when we get dark underwater).
So it would be recommended to conduct diopter adjustment in a dark room after staying there 15 minutes when pupils open as like underwater enabling to get perfect focus of viewfinder image even underwater where pupils will open.
|Weight||2g / 0.07oz|