I thought i'd try and see how my EF300 f2.8 lens performed when attached using the adapter on my R5 (normally I use the lens on my 1DX3). The result was that the lens started to hunt for focus in rapid stuttering steps eventually achieving focus. I found it easier to switch the lens to manual focus to get close then switch it back on. The reason I was trying it out is that i'm considering reducing my kit and have just the R5 but the 300 f2.8 is a brilliant lens and don't want to lose it.
Any suggestions on the cause or solutions
Andre
Any suggestions on the cause or solutions
Andre
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