good evening. yes, that should work. at least on the net you can find them with the 430 on them. besides, the connections are the same on all canon's... i have a photo if you want it...

What exactly do they mean by CH-specific...? They use the same frequency for every country. It would be too much effort to use a different frequency for each country. Swiss flashes are compatible with Japanese, German, American. The "Swiss product" is apparently only that it was purchased from a Swiss supplier.

No. The product requires 4x AA batteries (not included), as the description also indicates. Scope of delivery: Canon Speedlite 430EX III-RT Speedlite soft case Mini tripod Diffuser adapter SBA-E2 Colour filter SCF-E2 Bag diffuser adapter & colour filter Instruction manual / Warranty card Attached is an unboxing video: https://www.youtube.com/watch?v=kvRjZRzUOvc

Should not be a problem. The flash shoe is the same as on the SLR cameras.

Der neue 430 III hat per funk sogar eine Masterfunktion: http://de.canon.ch/for_home/product_finder/cameras/speedlite_flash/speedlite_430ex_iii-rt/#p-specification Slave-Funktion: Infrarot/Funk Master-Funktion: Funk

The flash unit fits the Canon R as it is compatible with Canon E-TTL and E-TTL II systems and also works with mirrorless cameras such as the Canon R. It offers radio and infrared remote control, making it a versatile companion for Canon cameras.

Yes, the Canon Speedlite 430EX III-RT is compatible with the Canon EOS R5. However, you must use the AD-E1 Multi-Function Shoe Adapter to connect the flash to the camera.

It works very well with this flash to flash unleashed. Without an additional unit. I have already done this with this Spidlitte One flash is enough with a softbox. I learnt this in the course.

As far as I know, the flash can be deactivated. I'll be happy to try this out and get back to you. I have two of these flashes.

Yes

ja: https://store.canon.ch/canon-speedlite-430ex-iii-rt-blitzgeraet/0585C011/

Yes, that is possible. I use 3 of these flashes for model photography, one as master on the shoe, the others as slaves.

YES, when you buy the product, the Speedlite transmitter ST-E3-RT comes under accessories. Next time, just put it in the shopping basket and see what comes up. If it doesn't work - just delete it again!

The flash can be used as both a master and slave flash

According to https://cpn.canon-europe.com/de/content/product/accessories/speedlite_430ex_iii_rt.do / Technology yes: "Infrared triggering allows EOS cameras that have a built-in Speedlite transmitter (e.g. the EOS 760D, EOS 70D and EOS 7D Mark II) to trigger the Speedlite 430EX III-RT from a distance of up to 10 metres without the need for any additional equipment."

It's already back at 242.- You don't need to ask about the price at Digitec. That's just one of Digitec's peculiarities. Officially, you only get something that doesn't help you: "Current daily prices blah blah blah availability blah blah purchasing conditions blah blah blah...".