Good, cheap viewfinder magnifier?

[dsp_418]

Hi all,

I'm looking for an affordable yet reasonable good viewfinder magnifier for my 7D.
I've seen a CowboyStudio Viewfinder for 32 bucks on Amazon, reviews seem good but wanted to see if anyone have got a direct experience with that particular viewfinder or if there's any other good suggestion.

TIA!!

 

[Alex H.]

i've had an LCDVF for a couple years now and have no complaints.