JJCET-74B Bayonet Reversible Lens Hood Shade for Canon RF 100-400mm f/5.6-8 is USM and EF 70-300mm f/4-5.6 is II USM Lenses, Replaces Canon ET-74B Lens Hood, Not Affect to Use 67mm Filter or Cap

This is an ET-74B hood for Canon RF 100-400 lens.It is well made and fits well. I suppose it closely matches the one made by Canon in quality and design. It attaches easily and clicks into place. You have to jiggle it very slightly when taking it off, but I didn't deduct any points for that. It's certainly better than some other lens hoods I have bought.There are some excellent qualities that I have not seen before in non-OEM lens hoods. It's quite stiff around the diameter where it fits to the lens. That means that it doesn't distort when you try to attach it, so it fits well and it's easy to attach. It clicks into place, and a well-placed button releases it from the lens. It can be reversed for compact storage. There are two marks to position it correctly for mounting in either position.There is one feature which may be either good or bad. The inside has a black, matte surface to reduce surface reflections, but it lacks flocking. Many of the original Canon lens hoods are made like without flocking, and I think this one is not an exception. Flocking is a black, velvet-like material that further reduces reflections, and it's found on some hoods for the best lenses. I am not sure whether it is needed for this lens. Moreover, flocking has to be cleaned occasionally, and it could wear out.

Fits my lens perfectly, quality appears to be good, and is much more reasonably priced than Canon's hoods are. This is my 6th JJC hood; none of them have disappointed. I do have two Canon hoods (one came with the lens), and as far as I can tell, JJC and Canon hoods are equivalent in all respects except price.

Not the original Canon Brand Product.Fits perfectly and made of quality material.

Seems to fit snug and does the job

It does the job and works fine. Quality looks good. It could be smoother while securing it, but that should clear up with use.

Securely locks in place, excellent hood for Canon RF 100-400

I have these hoods on six Canon RF lenses. They fit perfectly.

It’s a great lens hood so far. It does everything the lens hood that should have come with the lens would have done if Canon had included it. Highly recommend it over the Canon one since it’s cheaper and high quality. It locks in with a satisfying click, and holds up to some bumps, scrapes, etc. blocks the sun, keeps some dust off my lens, feels sturdy.