Canon RF 200-800mm lens transport sleeve

There have been reports of RF 200-800 lens getting damaged during transportation. The design intent is to support the main structure and distribute accidental impacts to help prevent damage to the lens. The housing uses 8 strips of 1/2" x 1/4" self adhesive EVA foam weatherstripping to support the OD of lens. The foam used for the test sample was purchased on Amazon "42Ft Foam Tapes Self Adhesive Foam Seal Strips 1/2In x 1/4In x 21Ft Each Roll Weatherstrips High Resilience Weather Stripping Door Seals for Door Soundproofing, Window Insulation (2R, Black)" MYFAMIREA was the vendor. The housing dimensions were adjusted so that the contact pressure of the foam to the lens results in a light slip fit. The housing to lens OD clearance is 1.3mm and the design is long enough to allow for a filter and a lens cap. The height of the part is 287.5mm, to print as a single part will requires a larger printer such as a Bambu H2D. An alternative is to only print the first 250mm's, that is enough length to support the lens up to the mounting foot ring. The test sleeves were printed in PLA and performed well, a final version was printed in ABS. Filament and foam choices should take into account long term storage requirements and conditions. One consideration is that some materials may outgas and over time outgassing can affect optical components (this is a consideration for any packaging). If your packing your gear for a weekend trip this should not be a problem. If you plan on storing your lens for a year in a closed container, plan accordingly. This is sleeve is intended to help protect against impacts, it is not designed to isolate the lens from vibration. While the EVA foam should offer some vibration isolation, that aspect of the design has not been evaluated. If you are running a decorative sleeve on your lens you may want to adjust the fit of the foam.