ZWO UV/IR-CUT FILTER 2" Nadirus 16" frequently used in many focal

frequently used in many focal reducers

The closing strip is elastic and allows to connect it to telescopes with a diameter up to 140mm - 160mm

The clamp is black anodized

Simply wrap the heater around the stalk that your secondary mirror is attached to as indicated in the drawings below

Working distance

ZWO UV/IR-CUT FILTER 2" Nadirus 16" frequently used in many focalThe UV IR cut filter is an indispensable accessory to block unwanted infrared and ultraviolet light where the ZWO is still sensitive. Note: Some ZWO UV IR cut filters may be labelled as only IR cut, but they are exactly the same and will also block UV. This filter increases the contrast, particularly in refractors, as the chromatic aberration continues in the infrared and ultraviolet spectrum. That is true also for apochromatic refractors where the