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
✨Product: Pre-sale of SV535 & SV545 Astrophotography Lens!
🎁Bonus:
①SVBONY 2-inch UV/IR cut filter（SV535）/SVBONY SV226P filter drawer（SV545）
②8th Anniversary canvas bag
③SVBONY 8th Anniversary Baseball Cap
④SVBONY Exclusive Stickers
📅Arrival Date:
Scheduled to ship between late January and early February 2026.
🚀Shipping:
First come, first served! Orders will be shipped in order of order.
Go to SV535
Go to SV545
