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Tag Archives :lens

SVBONY 2 Piece Binoculars Protective Rubber Objective Lens Caps

The objective lens cover with lens protection function can prevent dust, rain, fog, dirt and other functions.It's light and easy to use.  ...

Read more  Objective Lens Caps,  Binoculars,  Telescope,  Anti-rain,  Anti-dust,  Anti-dirt,  storage,  transit

Difference Between APO & Achromatic Lens Under Diffraction Ring

Test the APO and Achromatic, make sure the difference under diffraction ring, SV305 doublet is quality achromatic lens with SPL-51 ED glass.  ...

Read more  SV503 Doublet,  APO,  SPL-51,  Achromatic Lens

Can I Add C-lens to SV105 / SV305?

How to use the SV305 camera? Can I use the C-lens with SV105 camera? come and read this blog. hope helps.  ...

Read more  SV305 Camera,  SV305 with c-lens,  SV105,  SV305 with extension tube

Svbony SV137 x2 barlow lens Review

In visual observation, Sv137 Barlow performs quite well, and it can provide good details.  ...

Read more  barlow lens,  barlow

BAK4 or BK7 Prism Lenses? -- A Guide for Optics Enthusiasts

In the world of optics, the choice between BAK4 and BK7 prism lenses comes down to a balance between optical quality, budget, and intended use. Both materials have their advantages and are suitable for various applications. Understanding these differences allows users to make an informed decision when selecting the right prism lens material for their specific needs.  ...

Read more  Bak4 Prism,  Bk7 Lenses,  SVBONY Scopes

How to clean your eyepiece?

Don’t rush to suspect that there is something wrong with your device, maybe your eyepiece just needs to be cleaned.  ...

Read more  eyepiece,  cleanning,  lens