Andyyy

Will be able to buy it or have to wait a year to be available?

2/3 stops of extra light can be valuable.

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Not sure i would trust an app made by "one dude". What if he gets bored, unmotivated, busy in the future?

Sure, but you are not forced to pay for other products.

I don't want to talk to my camera. But a search feature is long overdue.

I don't understand why the aperture cannot be brighter than 5.6 at 150mm. If the physical aperture is 75mm (600mm / 8), that would make it F2 at 150mm.

Is the location of the aperture in the lens...

You have also Canon 600 F4 and 800 F5.6. So I don't see why is a problem offering a small and cheap 800 F11 ...

For me this lens is not small and light enough for the very slow aperture.

Where does it say they are "far behind" Sony alternatives? Cmon, show me sample comparisons or something...

What is subpar? Are you serious? Is the Canon EF 400 2.8 or 600 F4 subpar?

How is RF 400 2.8 and 600 F4 not competitive against Sony's? Plus you have lenses like the 500 F4 and 200-400 which can be had for very good prices on the used market.

Canon has the biggest selection of EF and RF mount birder lenses. Every focal length from 300 to 1200mm

The selling proposition is also lower price, more reach, etc. Who said Canon will only offer full frame lenses?

Starting to get "news" from cheap rumor sites?

goodeyes: APS-C is not 50% FF sensor area...much less than that. But a camera is not just the sensor. Everything else costs money to develop and make. Costs just as much as full frame, apart from...

You don't need any microadjustment for lenses. That was only the case in DSLR's

I am pretty sure ultrawide will come soon. Even for EF-M it was released a bit later. Would have been nice to see some EF-M lenses "converted" to RF-S, like the 22mm or 32mm but maybe those will...

It's not limited to 2 lenses because you have all the RF lenses. Some of them are quite affordable too: 50mm 1.8, 35mm 1.8, 85mm 1.8, 100-400. Plus you have all the EF/EF-S catalog.

AF seems vastly better than Fuji can offer. But if you don't need that, sure, Fuji might be a better choice.