Marshall 4.5" B+W monitor... any good?

[Can Scanner]

http://www.bhphotovideo.com/bnh/con...323&is=REG&addedTroughType=categoryNavigation

It's $90, accepts a single Composite video signal, and has 450 lines of resolution.

Do you think this would be a good budget monitor for focusing with a 35mm adapter?
You wouldn't be able to mount it on the camera easily, but it's very portable.
Thoughts?

 

[Robert Lane]

Don't waste your money; this will actually be worse than using the built-in LCD flip out or EVF. If you want or need an external monitor you'll have to get one that has HD resolution to be able to get accurate focusing done. I've not tried any of the Varizoom/Swit monitors but those would be the most cost effective - but nowhere close to the $90 cost of this Marshall.