Archival Methods 4-Ply Black 100% Cotton Museum Board contains 25 boards that measure 8 x 10" each. The board is a high-quality mat board used for many fine print and document projects. Whether for traditional print or digital technology, this board will provide a solid, acid-free backing that is perfect for display purposes. It can also be used for small mat cutting where, for example, a 2-ply board will provide a 1/32" separation between the work and the glazing.  

Your best print deserves the best mount possible. Presentation is half the battle and Archival Methods gives you the way to show off your best work. This is quality board designed for archival display.

For window mats and mat backing, Archival Methods recommends a thickness of 4-Ply, which creates a 1/16" separation between artwork and glazing and provides a flat, supportive backing.

4-Ply    100% Cotton Fiber    Acid and Lignin-Free    Buffered with Calcium Carbonate    Protects Prints from Pollutants    Manufactured to Museum Standards    Pulp-Free    Alkaline-Free    Aluminum-Free    Made in USA

100% cotton fiber

Processed with artesian well water - pollutant and alkaline-free

Acid and lignin-free (Lignin content is tested by TAPPI 236 cm-85 and has a Kappa number of less than five)

Calcium carbonate buffer maintains proper pH levels and protects against airborne pollutants (2-3% alkaline reserve, pH 9 +/-0.5, acid-free)

Pulp-free - Contains no metal particles, waxes, plasticizers or residual bleach peroxides

Alkaline, alum-free sizing is used internally and across external surfaces

Related Questions and Answers

Q: 1. What is the effect on image quality using this full frame lens on the Canon R7, with an APS-C sensor?

A: Using the Canon RF 100-400mm f/5.6-8 IS USM Lens on an APS-C sensor cameras like the Canon EOS R7 will result in a 1.6X crop factor. That being said, the focal length would be closest to 160-640mm.

Q: 2. Possible to use with a Canon EOS Rebel XSi?

A: Unfortunately RF lenses are not compatible with the Canon Rebel XSi.

Q: 3. Which lens hood does this lens take? perhaps same as RF 600 f/11 (ET88-B)?

A: The correct lens hood for Canon RF 100-400mm f/5.6-8 IS USM Lens is the Canon ET-74B Lens Hood. Please review the following link to view this option. BH #CAET74B • MFR #0578C001 https://www.bhphotovideo.com/c/product/1281549-REG/canon_0578c001_et_74b_lens_hood.html

Q: 4. Does this come with a little pouch for storage?

A: The Canon RF 100-400mm f/5.6-8 IS USM Lens does not come with a storage pouch. This Op-tech pouch would be a good option: https://bit.ly/3uvyKll

Q: 5. How is the auto focus on this lens? I have 2 bodies, the R6 and the RP.

A: The lens offers a autofocus that is nearly instantaneous! As well very sharp.

Q: 6. Which lens hood will work?

A: The Canon RF 100-400mm f/5.6-8 IS USM Lens is compatible with the Canon ET-74B lens hood.

Q: 7. Possible to use with a Canon EOS 7D mkii?

A: Yes. But an adapter is need. Please review the following. Canon Mount Adapter EF-EOS R BH #CAMAEFRF • MFR #2971C002 https://bhpho.to/3IXyPji

Q: 8. When using the 2X TC, will we be able to use the entire focal zoom length from 100 to 400mm ? Or will it have a limit like when using the 100-500 lens that you can't go below 300mm ?

A: According to Canon, it seems that the RF 100-400mm f/5.6-8 IS USM is compatible with both teleconverters in its whole range. As a footnote on its product page for the lens, Canon remarks that the focal length of the lens with the 2.0x TC is 200-800mm, which implies that the teleconversion applies at 100mm. For conclusive evidence, please see this page from Canon: https://bit.ly/3Et5USz

Q: 9. Hi. What is the minimum waist size? Will it work for a 30" waist?

A: Cotton Carrier SLINGBELT 1-Camera Carrying System with Tether has an adjustable belt of 37''- 54''.

Q: 10. Where can I find the owners manual?

A: You can find a link to the manual for the Canon RF 100-400mm f/5.6-8 IS USM Lens here: https://bit.ly/3SAvyy0.