I have a Canon EF 24-105mm f/4L IS USM lens and its hood EW-83H. I also have an EW-83J lens hood intended for EF-S 17-55mm f/2.8 IS USM. I don't have a full frame camera; my camera is a crop sensor one.
If I'm using the 24-105mm lens on a crop sensor camera, it's equivalent to 38.4mm-168mm. The 17-55mm lens is equivalent to 27.2mm-88mm.
I'm thinking of using the 24-105mm lens with the EW-83J lens hood intended for another lens, because the 24mm lens hood (EW-83H) needs to be relatively small due to the wide angle, and therefore, it doesn't offer as much protection as the EW-83J hood. Of course, using the lens on a full frame camera really requires the EW-83H hood so I'm not planning to throw that away.
I have been looking at the lens hood mount, and the diameters (81mm inner, 84mm outer) are the same, and the number 83 in the model number (whatever that means -- I couldn't find any 83mm dimension in the mount mechanism) is the same too. The lens hood mount mechanism seems to be identical. However, I'm afraid that if I try mounting the EW-83J hood on the L lens, it could get stuck due to some difference in the mounting mechanism I couldn't see.
So, my question is: can I use the EW-83J lens hood on the 24-105mm lens intended to be used with the EW-83H lens hood (when using the lens with a crop sensor camera)? Is it a good idea to use the EW-83J hood on a crop sensor camera or can it cause some bad effects on the image quality?