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Great point.
This idea that some people seem to have, that you need to have current lenses that are still serviced by Canon, is just a weird, errant misunderstanding of reality. . I don't understand how anyone develops such a mindset. . I use lenses and bodies years and years and years after support has been discontinued, and it's no problem at all. . Those people who think that way probably think that if you buy a 15 year old car with 150,000 miles on it, that it will need lots of repairs and not be reliable. . They are clueless!
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So I see your point. I think the real problem with EF lens is...BIG IF....when Canon decides to discontinue .... getting older lens repaired. Who repairs them, where to get a part....these things with electronics are much more difficult to work with than a car
Example- I have a version 500F4 that was MFG'd in 2008.....where do you get a 500F4 fixed when Canon wont repair it ? To me this is going to be the issue with the change to RF Bodies and RF lens
Im retiring and closing my business. I have great glass and bodies and I dont want to go R mount bodies anytime soon and the costs for RF lens is just fricking stupid......my retirement funds dont need to keep canon fed....im using an adapter...and more importantly....the version 2 EF lens are outstanding...with very few exceptions.....the R lens are not that much better ( if at all ) especially with the super telephotos.....500F4's, 400 F/2.8, 400 DO and 600F4's in EF mounts are not going to get better with an R mount put on them....and thats exactly what canon is doing with the super telephotos. they are switching the mounts


