Lightcraft workshop, probably best known recently for it's Fader ND Variable Neutral Density Filters, but also produces high quality optics for other types of filters is entering the Loupe Game. The new 'BiGeye' LCD Viewfinder for DSLR's is coming in under $140 for the complete setup. Yes, it's weird but they are selling parts of the loupe individually possibly if you happen to damage it, you can cheaply replace small pieces. Cheaper than the Original LCDVF viewfinder, but offering a 'diopter' I think it's priced very nicely. It's not the most beautiful design and I'm not a fan of the name nor the product images they display in their store, but I'm sure they've got the whole optics thing down and that's really what counts. Thanks to Paul Kondo for this tip, you can find the new LCW BiGeye LCD Viewfinder at this link.