The 25-pack antique white 5 x 7" 4-Ply 100% Cotton Museum Board from Archival Methods is suitable for matting, mounting, and preserving valuable documents, fine prints, and photographs. When used for window mats and mat backing for small prints, the 4-ply thickness of each museum board provides a 1/16" separation between artwork and glazing, thus providing flat and sturdy support. Made of 100% cotton fiber without any brightening agents, this museum board is acid and lignin-free and ensures protection against the destructive effects a polluted environment might cause as your artwork ages.

For Matting & Mounting Fine Art Prints    Acid and Lignin-Free Cotton Fiber    Protected Against Acidic Destruction    100% Cotton Fiber

100% cotton fiber pulp (99% alpha cellulose). It does not contain any post consumer waste recycled pulp. Paper is free of metal particles, waxes, plasticizers, and residual bleach peroxide. Sulfur content is less than 0.0008% reducible sulfur. Iron content does not exceed 150ppm and copper does not exceed 6ppm. No optical brightening agents are used in the pulp.

Alkaline sizing is used for both internal and external sizing. No alum is used in the manufacturing process.

Buffered with calcium carbonate 2 to 3% alkaline reserve; pH 9 ± 0.5; and acid-free.

Color dyes are light-fast and non-bleeding.

Pass the PAT (Photographic Activity Test) ISO 14523 (formerly ANSI IT9.16).

Lignin content is tested by TAPPI 236 cm-85 and has a Kappa number of less than 5.

The single ply sheets are laminated together using all natural starch adhesive.

Related Questions and Answers

Q: 1. Dos this lens work with the Olympus MC-14 1.4x teleconverter?

A: Yes The ED-100-400mm F5.6 -6.3 IS supports the use of the MC-14 Tele converter

Q: 2. Does the optical image stabilization sync with the in-camera sensor stabilization in Olympus cameras?

A: They will both work in conjunction with each other.

Q: 3. Does this lens support pro capture function and does it support in camera focus stacking?

A: Yes this Olympus M.Zuiko Digital ED 100-400mm f/5-6.3 IS Lens is compatible with both Pro Capture and Focus Stacking

Q: 4. Can you tell me if this lens is internal zooming?

A: This lens does not have internal zoom.

Q: 5. Why does this lens have some play when mounted on an Olympus OM-D E-M1 Mark III camera? Other lenses fit snugly.

A: That can happen with any lens. It just depends on how tight the spring is in the bottom of the lens mount. Some can be tighter than others. It is still within the specifications of the Olympus M.Zuiko Digital ED 100-400mm f/5-6.3 IS Lens to have a loose spring with some play.

Q: 6. Is this lens good for shooting sports outside?

A: The Canon EF 100-400mm f/4.5-5.6L IS II USM Lens is excellent for photographing outdoor sports.

Q: 7. What settings for image stabilization are recommended for use with this lens when paired with a E1-mkIII body? In camera only, lens only, or both. I typically take hand held photos of birds at high magnification.

A: It is recommended to use both IBIS as well as lens OIS. Certain axes are more easily stabilized in-lens, and certain axes in-camera. Toggling both on will allow the camera to more accurate compensate for motion.

Q: 8. Will this lens work on the original Olympus OM-D E-M1 Mirrorless MFT ?

A: Olympus M.Zuiko Digital ED 100-400mm f/5-6.3 IS Lens will work on the original Olympus OM-D E-M1 Mirrorless camera.

Q: 9. How would it work with a Panasonic GX8? Would the in lens stabilization work?

A: Yes, it will work with the GX8. The focus and stabilization would work without any issues.

Q: 10. What is the latest firmware for this lens ?

A: The latest firmware for the EF 100-400mm L lens is v 1.0.7. You can download the firmware on Windows or Mac machines in the link below. https://bit.ly/3lc6dIO