I am a lens addict

On my way back after visiting the beach yesterday, I went to the local camera shop (the only camera store on the island these days) in Ryde on a whim, just to see what second hand Canon items there were in the window and happened to see a nice little EF 300mm f/4 L IS  prime lens there.

I'd actually been browsing online for one of these or a 400 mm f/5.6 so the sight of one in the window of the camera shop was A Sign, surely? Anyway, before I could stop myself, I went inside, examined the lens, whisked out my credit card and left the premises with it. I always wondered why the 300mm had IS while the 400mm f/5.6 didn't, maybe Canon thought that putting IS on the 400mm would erode sales of the huge primes at the time. That said I had a 400 f/5.6 years ago and don't recall ever being dissatisfied due to no IS.

I've not had a chance to try it out yet so, unless I take it with me to work this week for use at lunchtime, I won't get a chance to until Friday.

I really should stop buying stuff that I don't really need though. I now have three cameras and five lenses. Apart from the two R-series cameras and the RF 200-800, my gear is all second-hand EF lenses and one DSLR. Mirrorless is where the camera makers are going but the old EF lenses - with an adapter - work extremely well on R-series bodies. I use all my EF lenses on my R6 Mk II, with the Canon EF to R adapter and, for the foreseeable future, it is a good solution as the L-series RF lenses are extremely expensive (as are the newer EF-series). EF L-series primes, particularly the older iterations, can be found second hand for fairly low prices now, and it is a cost-effective way to have seriously good glass, the sort that I coveted not that many years ago. For now, I use the 200-800 on the R7, which gives ridiculous reach.
The older L-series lenses, such as this one and my 500mm f/4 L, aren't repairable these days, due to no spare parts being available, but still represent decent value for money. Get the lens insured old for old and you can get another if the existing one packs in.