Hi all,
This should be an easy one for those who know more than I.

I currently have a Sony a65 and am thinking of moving up to the a99.

Since the lenses I have for the a65 are (I believe) for cropped sensor cameras, I assume that when I attempt to use them on the a99, the corners of photos will potentially be black because those lenses wont fully "cover" the larger sensor?

Just trying to figure out how big of an investment this move will entail....

(Lenses I have: Sony DT 18-250mm f/3.5-6.3 (Zoom Lens0, Tamron SP 10-24MM F/3.5-4.5 Di II (Wide angle), Sigma 105mm F2.8 EX (Macro).

Thanks.