Store your photographic materials safely by using Archival White Paper from Archival Methods as a form of interleaving paper or protective cover for your media. The paper is made from alpha cellulose with 25% cotton fiber content and is calcium carbonate buffered as well as both acid and lignin free for preventing degradation of your photographs. It has a basis weight of 120 gsm and passes the Photographic Activity Test (PAT) as indicated in ISO IT 18916. Additionally, it was made in the USA.

Alpha Cellulose and Cotton Fiber Base    Safely Store Photographic Materials    Passes Photographic Activity Test    Basis Weight: 120 gsm    Calcium Carbonate Buffered    Acid and Lignin Free    Made in the USA

Made from alpha cellulose wood pulp with 25% cotton fiber content to create a durable, white paper with a basis weight of 120 gsm.

Uses calcium carbonate as a buffer with 2-3% alkaline reserve, measured to a pH of 9 ±0.5 and being acid free.

This media passes the PAT (Photographic Activity Test) as indicated by ISO IT 18916, which is formerly ISO 14523 ANSI IT9.16.

Sulfur content is measured to less than 0.0008% reducible sulfur.

Lignin content is measured to TAPPI 236 cm-85 standards and has a Kappa number of less than five.

Related Questions and Answers

Q: 1. 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: 2. Does it come with a lens hood?

A: Yes.

Q: 3. It us good for Canon EOS 2000D?

A: No, you can not mount a Mirrorless lens on a DSLR camera. Canon RF 100-400mm f/5.6-8 IS USM Lens mount is not compatible with Canon EF camera mount and there are no adaptors to connect them.

Q: 4. 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: 5. At what country is this lens made?

A: The Canon 100-400 is made in Taiwan.

Q: 6. Is this dust proof? I'm in desert like areas with lots of drinking/dust and worried about lifespan of lens? So wondering if l series would be better?

A: This RF lens is weathered sealed. However you will want to over the front and rear elements high dust areas like any other lens.

Q: 7. Any comparison/reviews compared with ef 2x70-200F4?

A: Unfortunately, I have not seen any comprehensive comparisons between the Canon RF 100-400mm f/5.6-8 IS USM Lens and the Canon EF 70-200mm f/4L IS USM Lens paired with the Canon Extender EF 2X III. When paired with the Canon Extender EF 2X III, the Canon EF 70-200mm f/4L IS USM Lens would become the equivalent of a 140-400mm f/8 lens. It would not be as bright as the RF 100-400mm f/5.6-8 IS USM Lens at the wide angle 100mm setting, but would have the same maximum aperture starting around the 300mm focal length. The 100-400mm lens will have more magnification and will focus approximately 1' (30.48 cm) closer than the 70-200mm f/4 lens.

Q: 8. where this sen where this lens is made?

A: The country of origin of the Canon RF 100-400mm f/5.6-8 IS USM Lens is Taiwan.

Q: 9. Is this lens good for nighttime sports/marching band?

A: The Canon RF 100-400mm f/5.6-8 IS USM Lens, could work well for a night time sports and marching bands. It would be ideal is the arena is well lit, otherwise a high ISO would need to be used.

Q: 10. Does the RF 100-400mm lens fit in a old Rebel T1I camera?

A: No, the RF 100-400mm f/5.6-8 IS USM does not fit EF/EF-S mount cameras like the Canon Rebel T1i.