SWITCHING ON & OFF
CHANGING BATTERIES
Regular sight RS-M
Switch sight on and select the desired colour by pressing either the green or red button, then press it repeatedly until the desired brightness is reached. To switch the sight off, press both buttons together, making sure it has switched off. To switch between the four reticles, move the reticle selector switch, below and behind, to left or right.​

Changing the batteries.
To change the three LR41 batteries, use the supplied Allen key to unscrew the battery bay cap, and remove the old batteries.
Replacement: Drop each cell into the compartment with the + up. A cotton bud with one end cut off and tipped with a small blob of Blu Tack makes it much easier to quickly pick up and deposit the batteries.
Mini sight MS-M
To switch this sight on, press the button on the sight left side, and repeat, up to eight times until the desired brightness has been reached. To switch off, press and hold the power button down until the dot disappears, or cycle past 8 button presses and the sight will turn off.

Changing the battery
To change the battery, use the supplied Allen key to loosen one sight fixing bolt, and remove the other. Then rotate the sight until the battery is fully exposed. Remove it, and replace with a fresh CR2032. Finally, rotate the sight back to it's normal position, replace the bolt, and gently nip up both until comfortably tight. As you do this the countersinks on both bolts will realign the sight with the mount, do not overtighten the bolts. Re collimation is rarely required.

REMOVAL AFTER USE, Both sights.
It is strongly recommended that the sight be removed from the camera after use, for as with any hot shoe mounted device, there is the potential for damage to both sight and camera, should the sight be knocked or strained whilst still in the hot shoe, during transit or storage. This might only result in the need for recollimation, but could possibly involve damage to the sight, or even the camera hot shoe. This risk can be avoided entirely, by removing the sight after use.
FITTING AND COLLIMATING RSM AND MSM SIGHTS
THE FITTING PROCEDURE FOR BOTH SIGHTS IS THE SAME.
1. SLIDE THE SIGHT, ONTO THE CAMERA FROM BEHIND, PUSHING IT GENTLY TO THE FRONT OF THE HOT SHOE.

2. GENTLY TIGHTEN THE THUMBWHEEL, UNTIL ALL LATERAL MOVEMENT HAS DISAPPEARED & THE SIGHT IS PROPERLY SEATED. DO NOT TIGHTEN BEYOND A COMFORTABLE FINGER TIGHT.

WITH THE SIGHT FITTED, YOU ARE READY TO BEGIN COLLIMATION; THE ADJUSTMENT OF THE SIGHT UNTIL IT AND THE CAMERA ARE AIMED AT EXACTLY THE SAME POINT.
COLLIMATION
1. MOUNT THE CAMERA ON A TRIPOD OR A STABLE SURFACE. THEN SET UP A TARGET, AT ABOUT THE DISTANCE YOU EXPECT TO BE SHOOTING AT. SHOWN HERE, 100ft DISTANT.
THEN ADJUST THE CAMERA ORIENTATION UNTIL THE FOCUS BOX IS CENTRED ON THE TARGET. USE THE SMALLEST FOCUS BOX FOR ACCURACY. THEN CHECK THE REFLEX SIGHT TO SEE WHERE THE RETICLE IS IN RELATION TO THE FOCUS BOX & TARGET.

2. HERE,THE RETICLE IS HIGH AND RIGHT OF THE TARGET,

3. INSERT THE HEX OR SCREW KEY INTO THE HORIZONTAL ADJUSTMENT SOCKET, AND TURN CLOCKWISE, BRINGING THE RETICLE LEFT, TOWARD THE FOCUS BOX.

4. THE RETICLE IS NOW CENTRED DIRECTLY ABOVE THE TARGET, AND MUST BE LOWERED.

5. INSERT THE KEY INTO THE VERTICLE ADJUSTMENT SOCKET AND TURN ANTI CLOCKWISE, UNTIL THE RETICLE IS DEAD CENTRE ON THE TARGET.

6. THE RETICLE IS NOW CENTRED ON THE TARGET AND COLLIMATION IS COMPLETE

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NB: while the adjustment of the Mini sight is the same in principle as the regular sight, the direction of adjustment is opposite.
PARALLEL COLLIMATION
Convergent collimation, described above, is where the shooter sets the sight to converge with target and focus box at a set distance, but there is also, parallel collimation, in which the vertical offset of the sight, say 4" above lens axis, remains parallel with that axis to infinity. The disadvantage of this style is that you must always factor in the offset, by aiming 4" above the target, this is only problematic with small close up targets like insects, while at greater ranges, the offset effect all but disappears, as it remains a constant 4" above the target, making for easy calculation at a variety of ranges.