1. seeking out all ravens and checking their colour, or
2. seeking out all things that are not black and checking they are not ravens.
Looking at an apple constitutes evidence, in that it contributes to the second case, and that's not in doubt here. But you're really checking that the apple is not a raven.
If you believe that apples are not ravens (perhaps by definition), then checking an apple no longer contributes to the probability at all.
"seeking out all things that are not black and checking they are not ravens."
This statement seems a faintly ridiculous idea. Our mental model holds an infinite number things that are "not black", so there are still an infinity to check. Checking one thing should not change our internalised probability at all.
Even if you disagree that there are an infinite number of things, checking all apples contributes 0% towards this case - and is surely no easier than checking every raven.
It follows that both the number of objects in the universe and the number of ravens in the universe are infinite.
Alternatively we can stay on earth. The number of ravens on earth is finite, but so is the number of objects on earth.
It depends on the definition of raven. If you define 'raven' as a current resident of Earth, that simplifies things for you - it's meaningless to check things off Earth.