JJC ET-74B Bayonet Dedicated 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 Lens, Replaces Canon ET-74B OEM Lens Hood

This hood is fantastic! My son has a real Canon hood that's the same size and he paid $50 (after tax) for it. if you put these two next to each other you can't tell the difference. They function exactly the same, but I paid $15 (after tax) for mine. This is great quality. Be nice if they packaged it a little better. The box was really flimsy.

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

Excellent alternative to the stock option.

Seems to fit snug and does the job

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.

Great fit as described

Works fine

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.