Color: total 12 colors available. #8 Light Yellow, #11 Yellow/Green, #12 Yellow, #21 Orange, #23A Light Red, #25A Red, #38A Dark Blue, #47 Violet, #56 Light Green, #58 Green, #80A Medium Blue, #82A Light Blue
Remark: Thin metal ring with a full 26mm clear aperture threads into the barrel of any standard 1.25" eyepiece to increase contrast and reduce glare and light scattering.Each filter is threaded at both ends to accept another filter. And each come with an independent plastic case with glass window.
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