ECCO is completely metal built and, for this reason, it can also be used as a finder support by adding the optional "Finder support for ECCO". So you can install your finder or guide scope above ECCO instead of using guide rings (this is a perfect solution, for example, for small apochromatic refractors and very portable set-ups).
|External Diameter:||90 mm
|Rings screws:||Aluminium screws with nylon tips|
|Total weight:||165 gr|