REVORING with Polariser and VND
REVORING with polariser and VND, is a ground-breaking innovation in maximising the creation of photographers and videographers. The well-designed retractable blades mount solidly on the lens. Glass-wise, with high-quality German SCHOOT glass and 9 layers of anti-water and fingerprint coatings.
Glass & Coating
9 Layers of Anti-Fingerprint & Waterproof Nano-Coating on German Schott B270® glass
The German Schott B270® glass is used in making the Polariser and VND filter. It includes Anti-Reflective coatings, which virtually eliminate all flare and reflections from the front and rear surfaces. This helps visible light to pass through the glass by removing unwanted reflections, giving the user the best possible light transmission (up to 97%), optimizing images for the sharpest possible outcome. Whether shooting at 16mm or 400mm, the glass and coatings used in our system produce sharp images, even at light reductions of up 10 stops.
Features on REVORING
Matt black anodized finish allows prolonged protection of the ring’s metal from oxidation. Architectural 6063 light but tough aluminum was used for making the durable bodies of the ring. 4 filters sizes are offered for 4 ranges of lenses: 37-49mm, 46-62mm, 58-77 & 67-82mm
One twist, further rotate until finger-tight, and then your ring is good to go!
Having full use of the ring, firstly, you MUST set your desired ND level by moving the outer pin. Secondly, you leave the ND pin moving along while you adjusting the polariser pin to get the optimised polarising effect. The sequence cannot be reversed.
Bringing alone the Revoring with polariser and VND, you are then allowed to shortlist your travel gear to just ONE filter. No more trouble caused of storing the loose rings.
Switching filters from one lens to another could be time-consuming. Our ring will simply ease the pain by untwisting and twisting.
What is Cross-Polarisation?
The Magnetic Clip-on filter was developed with the sole purpose to solve the cross-polarisation problem happened on traditional variable ND filters. Cross Polarisation is a physical phenomenon of all VND filters when paired up with wide angle lens. It makes an obvious “X-pattern” darken on the image. The wider the lens is, the earlier the “X-pattern” starts to appear.
To solve this problem, wide-angle lens users may now use the H&Y magnetic clip-on ND together with the H&Y Revoring VND filters to achieve the higher ND stop with no X-pattern seen. For instance, to use a 16mm lens with 10-stop ND, users can turn the ND level to 1.5 stop (on the Revoring VND filter) and use an extra 8.5 stop (Clip-on ND) to achieve a 10-stop long exposure effect.
**Based on the test results, we came up with the above table as a reference to illustrate the relationship between the focal length and usable ND stops. The actual situation will vary a bit from the reference due to different lens designs and optical structures.