LCD Monitor ViewFinder?

Hello all,

I'm due to be using my D3200 for some film work soon and so am looking for a viewfinder for the LCD screen e.g.

Ckeyin V5 2.8X LCD ViewFinder Screen Magnifier Loupes: Amazon.co.uk: Camera & Photo

Does anyone know of a particular make and model that works well with the D3200?

Thanks...

I don't use one so can't say whether its any good or not. It is supposed to be compatible to D3200

Kinotehnik - The makers of LCVDF and LCDVFE