About this product
Part Number: 2958027
Baader 2" fine-tuning / stop ring with brass clamping ring and 2 thumb screws.
Highly recommended for users of Baader Hyperion eyepieces with a 2" diagonal or prism to prevent the 1.25" eyepiece barrel hitting or damaging the internal components especially when additional fine-tuning rings are used to lengthen the original eyepiece body.
Can also be used as a parfocalising ring with other 2" eyepieces.
Example in use:
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