I got my new G2 out for a play yesterday and immediately noticed that when I put my 20mm f/1.7 on to it it won't do continuous auto focus (AFC). If I put it into that mode the camera will say not supported and to put into AFS mode instead. I then googled and was shocked to find that the 20mm is "so slow to auto focus that it won't do continuous AF on anything". Wow. £280 for this lens starts to now look even more concerning. I feel like I wasted my money on this lens to be honest.
I can't believe I have never seen anyone mention this. This lens only ever gets praise. Are there any other lenses that will not do AFC that I should be aware about? Is it really that slow so as not to be able to do this function? When I focus with it, it seems ok.
One of the main reasons I jumped onto m43rds was the 20mm prime but I'm sort of a bit miffed I never spotted this before. The extra speed benefit of the lens you can't even use for any moving focus shots as it doesn't support it. I've never heard of a lens not doing this.
I would assume the 25mm does do AFC, but for £500 I'd expect that.