90MM telescope eyepiece lens kit 2.7" or 3 inch
Brand new Lens set to make a 90MM focal length eyepiece. These beautiful lenses are multi-coated and perfect. Both are 68mm diameter high quality achromats to make a 90mm huge symmetrical plossl eyepiece. You could make this a 2.7", 3" or 4" diameter eyepiece for high end professional scopes or observatories. This type of eyepiece when finished can run from $100 to $1000, so you are getting a set that can be made into a very valuable eyepiece if you have a large scope and focuser. This can be made into a 2" eyepiece but it is not recommended. It really cuts down the field of view. So if you are good at making things with pvc, or aluminum to make a nice housing and barrel for these lenses, you could be on your way to a great eyepiece! Great for experimenters. Lens orientation instructions are included. Have fun and make a great eyepiece! Free shipping in the CONUS -- e-mail me for foreign shipping fee.
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- Item #: 000268
