Installation guides
Topcon collars
The collar can slide forward and backward. The ideal is when the picture gets large and the image gets brightest. . Many positions work but there is a definite ideal focus for each slit lamp.
Place the EyePhotoDoc onto the collar and gently move it back and forth until it is the n the ideal focus. Note in most cases the collar can go with the flange in either direction. Tighten set screw. See below
Collar installation for Haag-Streit, Zeiss, CSO with sliding glare guards
In order to get proper centration the rarely used glare guard needs to be removed. All of he glare guards pull off by extending them and rocking it until it comes loose. Remove the keeper spring and place the collar on.
See below
Marco Ultra and older Zeiss oculars
The rubber guard unscrews. The collar goes with the flat toward you. It has a cavity that that keeps it firmly attached away from you. Screw on the guard.
Collar for BM and Clones
A collar goes on the ocular which is very sturdy. The ocular is pulled out and the collar is inserted from the back. The cone goes toward black flange and recess into it.
Haag-Streit BM BQ/BP BC/BD (without multiple eyepiece collars)
The ‘horse shoe’ goes directly on the eyepiece.
The BM and clones locks on the outer lip.
The ‘horse shoe’ for Haag-Streit BQ,BP, BC,BD, BI require moving the left guard forward for insertion on the ocular barrel.
Note:
They fit all eyepieces of the same brand. If you have a mix of scopes the multi receiver and collars are necessary.
Background illuminators
Intuitively it is confusing why we need a background illuminator since everything is so clear with a slit lamp. Cameras are not as sensitive as our eyes to low light level and can not photograph high contrasts in brightness. The illuminator allows an ‘accurate’ image.
