I got the new Sony 70-200 mm F4 Macro G OSS II and it’s amazing, even though very expensive. Anyway while looking at all those YouTube videos about it people were very often mention that it’s compatible with tele converters and you’d get basically double the size lens (with half the light) + 1.0 macro instead of 0.5. Sounds amazing, and it looks like just a little bit of a short pipe which makes the lens to be a bit further away from the sensor.
I was thinking that it would be neat to get one, but when I looked at the prize, oh my god, $548. I don’t get it, so what makes it so expensive?
Yes you are correct on the mount, although of course the teleconverter I have isn’t all that old. Thirteen years is still quite a long time for a mount to be available and not have a wide selection of aftermarket and used components available though, none of my equipment (except the body) is that old so I would think OP should have similar items they could buy?