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H&Y RevoRing Q&A Part 3
9. Q: RevoRing filters can potentially cause vignetting or X pattern effects?
A: - First, lets talk about the issue of vignetting. Vignetting occurs due to the thickness of the filter, but as long as the lens filter is large enough, vignetting can be addressed. H&Y RevoRing/RevoRing integrated filters are wide-angle structure design and the diameters are much larger than conventional screw-in filters on the market. This is specifically done to avoid vignetting, so you dont need to worry too much about this problem.
- Regarding the X cross pattern issue: Currently, all variable ND filters available on the market, when used with wide-angle lenses and set to their maximum level, tend to appear X-pattern. The extent of this phenomenon varies with different brands, which is inherently a drawback of wide-angle lenses and is related to the optical refraction design principles of the lens.
Especially with ultra-wide-angle lenses, the issue becomes more pronounced, and no camera equipment manufacturer can solve it! It is generally recommended to keep ND within 5-stop range for lenses with a focal length between 16-35mm, avoid setting ND level too high. You can address the need for higher stops by stacking RevoRing magnetic ND filters on the RevoRing lens filter.
- H&Y offers a perfect exclusive solution, which is to use magnetic ND16 neutral density filter (transforming the 1-5 stop range to 5-10 stops) or an ND400 neutral density filter (transforming the 1-5 stop to 9-13 stops). This allows you to achieve high-quality photography results by simply adjusting the lower range of 1-5 stops, effectively eliminating the issue of X cross that typically occur in higher stops.
10. Q: Will the spring retractable design of the revoring filter cause scratches or damage to the camera lens?
A: The slot height of our variable filter adapter ring is 0.5 mm deeper than the thread groove end of the lens on the market. Therefore, no matter how you assemble the variable adapter ring onto the lens thread groove, it will never touch the lens. H&Ys RevoRing technology has been on the market for three years, selling tens of thousands of products globally and there has never been any consumer feedback mentioning that it would scratch the lens surface.
11. Q: When using RevoRing VND CPL filter, I hear a metallic sound at the connection point between the RevoRing and the lens. Does this indicate an issue with the product?
A: The junction between the RevoRing VND CPL filter and the lens itself is an adjustable adapter step ring, the adjustable adapter ring is a retractable spring-loaded slot structure. It is normal to hear the sound of metal friction and spring rebound during the assembly process.
12. Q: Can RevoRing VND CPL filter be used on unconventional lenses (camera lenses with convex-shaped glass) ?
A: No, it cant.