Astronomical Telescope Accessories, 106mm Series F600 F900 Double Separation Lenses for DIY Refractive Astronomical Telescope Optical Glass Objective Lens Group,for Observation(106F900 Green Film)

106mm Series F600 F900 Double Separation Lenses for DIY Refractive Astronomical Telescope Optical Glass Objective Lens GroupParameters:Effective diameter: 102mmActual outer diameter: 106mmFocal length: 600mm, 900mm Optional1.106F600 (double separation single layer blue film) : double separation full surface coated single layer blue film.2.106F600 (Double separation multi-layer broadband green film) : double separation full surface plated multi-layer broadband green film.3.106F900 (Double separation multi-layer broadband green film) : double separation full surface plated multi-layer broadband green film.4.106F900 (double separation single layer blue film) : double separation full surface coated single layer blue film.Please kindly be noted the package includes one set of two pieces seperating Lens.It can be made one doublet Lens.Package:1pcs lens with partition ring.Please allow 01 inch error due to manual measurement.Thanks for your understanding.Objective 106F600 106F900 Double Separate Single-layer Blue Film Multi-layer Green Film DIY Refractive Astronomy Telescope==========High-concerned chemical : NoneModel Number : YHG2632Material : GlassUse : OpticalName : 106mm Series F600 F900 Double Separation LensesEffective diameter : 102mmActual outer diameter : 106mmFocal length : 600mm, 900mm Optional

• All-metal lens cell with precision threaded interface ensures secure installation and stable optical alignment. Includes a dust cap to protect the optical surface, extending service life.
• This is a 106mm series double separation objective lens group with F600 and F900 focal lengths, specially designed for DIY refractive astronomical telescopes.
• Made of premium optical glass, the lenses feature high transparency and excellent light transmittance with stable optical transmission.
• The professional double separation structure effectively eliminates chromatic aberration and reduces imaging distortion to improve celestial imaging quality.
• With universal standard dimensions, it fits ordinary telescope tubes perfectly for easy manual installation and accessory replacement.
• Exquisitely crafted and durable optical lenses with wide compatibility are suitable for enthusiasts to build DIY telescopes and upgrade observation equipment.
• Doublet separated or doublet cemented achromatic design corrects focal shift between red and blue light, reducing chromatic aberration and providing clear, color-fringe-free viewing.