Does anyone make a digital real-time negative viewer/quick preview, with no scan-then-view delay?

Question

Is there real time/instant negatives viewer, i.e. one where you can slide into or place a negative onto its sensor and preview the results via a screen or in a window of software on an attached computer desktop? (Budget up to say around 75$/100pounds).

I ask because there are many negatives scanners but it would appear that they are operated by push button scan and you view the result afterwards - either via an attached computer or if standalone, via a built-in screen.

Fine, but the whole scan-then-view process seems slow to me, especially when you may not want to keep the negative, and want to quickly move onto the next. The scan-then-view negative generates a file for each scan that you would have to delete, more steps.

Answer

This one doesn't scan first - it's essentially a 5MP webcam with a light and negative holder. I've used it myself; it's not earth-shattering but does a fairly decent job for the price.

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