I've bought JJC and other third party lens hoods. For my use case I really need some sort of flocking to prevent reflection off the inner surface of the hood. The cheap hoods from JJC, Altura, etc. are too smooth and shiny on the inside. The flocking on the Canon hoods reflects practically zero percent of the light that falls on it.
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Several years ago my Canon EW-83H absorbed the lion's share of a nasty drop of my 5D Mark III + EF 24-105mm f/4 L IS from about four feet onto a concrete driveway and cracked completely in two at the narrowest point between two of the "petals". The camera and lens suffered no damage at all. After supergluing it black together and reinforcing that with black duct tape on the outside a couple of times over the next few years, it refused to be glued together again. So I bought a cheap replacement hood.
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Most sporting events and many other places I shoot are in environments where bright point sources of light are in the frame of many of my images. The unlined plastic can actually make lens flare worse, even the ones that claim to have a matte finish.
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My solution is to line the cheap hoods myself.
It's a real pain creating a pattern to fit the inside of a truncated cone.
Once I've got a pattern, though, it's pretty easy to cut some Peel & Stick felt to fit. I get 9x12 inch sheets of the felt for about $2 each at the local craft store. You can get packs of 6-10 sheets from third party sellers on amazon for less than $10.
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Then its another pain to get the felt lined up inside the hood without it sticking before it's positioned precisely. But once I've got the lining in them, they work just as well as the OEM hoods do.
So far I've lined Altura or JJC hoods for my EF 24-105mm f/4 L IS, EF 35mm f/2 IS, EF 50mm f/1.4, and EF 85mm f/1.8 (the same hood also fits the EF 100mm f/2). Due to the irregular shape of the interior of the ET-65 III and knock-offs, it was a real pain lining that one. There are two bulges on the interior that house the spring loaded clips that hold the hood onto the front of the lens. Why Canon didn't design the 85/1.8 and 100/2 with a conventional bayonet mount for the hood is beyond me.