All i know is i have tried several over the years and found that my MacBook Pro with a $35.00 video capture does an amazing job.
I have just bought the New Everfocus 5.6 and it seam to work OK.
It is in the screen WUXGA is where it's at 1920 X 1200
When it come's up on my screen it is not full screen and so i discovered by Picking something small in the picture to focus on and then ZOOM all the way in on it till it is a blurr. That is the trick!!!!! I play with the focus there and then ZOOM all the way back out and BOOM there it is.
A guy that has been in the buisness for 25 years is amazed how much better i can do.
I am curently talking with a Laptop Screen sale's place on making a portable unit up for out in the field, i hate taking my 3,000.00
Apple up on a ladder and such.
Greg
P.S. Couple of the store's i go into say i am the only guy using a computer and taking things way farther than anyone else they know, I just like doing an excellent job.
The one you are looking at seams small, but find out what the screen is.
I like the 5.6 a lot better also little over 200 from SES.
Also it would be better to get one with the bigger 12V Camcorder battery so you can use it to power the camera's up in som situations, + battery's last all day and there rechargable so yo do not have to keep buying battery's.