>>2885785primarily, it can degrade image quality (this is why Fuji does not use it) but there are a whole host of other reasons why Canikon does not use it, from bokeh and MUCH better telephoto stabilization effectiveness to better exposure and metering etc (you can google this shit, Canon, Nikon and Fujifilm have all made statements as to why they CHOSE not to incorporate IBIS)
YES, there are some benefits of IBIS (cool, you can now stabilize the old vintage lens your grandpa left you) but if you are splitting hairs (which camera manufacturers need to do when deciding whether or not to implement a certain feature or function) the benefits of OIS exceed the benefits of IBIS and have less negative affects
>b but lenses cost moreThis isnt a fucking negative effect, get a better job fgts
The best meme is this one
>Muh smaller lenseshahahahahaha