Protect your eyes from excessive blue light with the GUNNAR Emery Glasses. It features Clear GBLF 35 lenses, which can block 35% of blue light and also provide 100% UV protection. The lenses have a wide format to provide a panoramic viewing experience. The lenses also have an anti-reflective coating on both the front and back sides. Made of a high-quality acetate material, the glasses provide lightweight construction and proper weight balance. This allows you to wear the glasses for long periods of time without pressure points or fatigue.

Clear GBLF 35 Lenses    Blocks Up to 35% of Blue Light    100% UV Protection    High Quality Acetate Material    Wide Format Lenses for Panoramic Viewing    Anti-Reflective Lens Coating

Similar to how the Sun Protection Factor (SPF) measures UV protection for your skin, the GUNNAR Blue Light Filter (GBLF) scale indicates how much protection you have against artificial blue light. These amber lenses block up to 35% of blue light emissions, providing an optimal balance between protection and sight performance.

Related Questions and Answers

Q: 1. is there a bubble of the leveling base ?

A: The Benro Tortoise Column less #3 Carbon Fiber Tripod does not have a bubble level on its leveling base. This feature is typically provided on a compatible quick release system or tripod head.

Q: 2. Is there an accessory that allows for mounting the camera to the bottom of the tripod for low-to-the-ground shots?

A: No, there is no adapter made that we are aware of that allows you to connect the camera ot the bottom of the Benro Tortoise Columnless Carbon Fiber Three Series Tripod with GX35 Ball Head. But the tripod does allow one to set it very low, 7.7 inches.

Q: 3. Is this capable of handling a FF mirrorless body plus a telephoto lens such as a 70-200 2.8? A reviewer was concerned about the capacity of the head.

A: Yes it is a very strong head with friction control and able to handle a telephoto lens such as 70-200 2.8. Please check here the listing for the head only and there is another review here which is positive. https://www.bhphotovideo.com/c/product/1576684-REG/benro_gx30_three_series_arca_swiss.html

Q: 4. what is the height of this tripod when fully extended?

A: The maximum height of this tripod is 56.30"

Q: 5. what's the size of the rubber foot?

A: The rubber foot specs we found show a diameter of approx. 0.86" / 21.8 mm

Q: 6. Are the leg angles fixed at 80, 50, 25 degrees or can you select any angle with the locking button?

A: Each leg can only be locked at preset angles. The locking mechanism/jam is released, the leg angled, and then relocked so that each leg can be independently set.

Q: 7. What is the width of the leveling base of the #2 tortoise?

A: The Benro Tortoise Columnless #2 Carbon Fiber Tripod base mount diameter is 60mm.

Q: 8. What is the leg diameter?

A: Leg Diameter 1.28" / 32.4 mm (Maximum) 0.86" / 21.8 mm (Minimum)

Q: 9. Is the folded length of 22.83" included the ball head? What is the folded length without the ball head?

A: The listed folded length of the Benro Tortoise Columnless Carbon Fiber Three Series Tripod with GX35 Ball Head is with the head attached. The Benro GX35 Two Series Arca-Type Low Profile Aluminum Ball Head is 3.5" / 90 mm in height. The folded length without the head would be 3.5" / 90 mm less.

Q: 10. Does the closed length dimension include the head? What is closed dim. just including the leveling ball/base (no fluid head)?

A: The Benro Tortoise Carbon Fiber 3 Series Tripod is about 19" without a head when closed.