Contraindications:
- Especially during the first few very stiff, but well existing diopter adjustment
A direct comparison with its competitors is not possible to me, but I was already in the photos rather solid-looking structure fell. The alternative of Wallimex eg worked here sometimes at crucial points just too delicate and I was not disappointed: The product is more better than expected and the subtext Affordable Quality under the brand logo is fully justified.
It is used 5D Mark III where everything fits perfectly with me on the Canon. That was probably the target audience.
Materials and processing work solid and brighter until slightly disturbing spots inside the light well by no means cheap. But plastic for the light shaft, for example, also has quite advantages because it saves weight. The factor 2.5x also seems perfectly adequate, because already with 2.5x, the individual pixels of the display visible. A 3x magnifying glass would be more likely to have been too much.
Nice detail: The camera screen toward a slightly wider round rubber lip provides protection against scratching of the camera and by the way, for sufficiently light-tight seal. Adjustment allows the adapter well (menu settings Calling last!) And we did that once, which can also remain permanently so, because a magnetic coupling ensures if necessary that you simply put the magnifying glass structure in the mounted below the camera quick release plate, what keeps fortunately bombproof, or just with initially little effort triggers due to strong magnets by train all the way down to the design of the removable disk, and then use the optical viewfinder of the camera as usual without anything would get in the way, because the pin Magnetic coupling is usefully on the lower half of the adjustable light shaft construction and is not attached to the quick release plate that simply flush behind.
On the manufacturer's website (Kamerar dot com) you can see more photos and more, how it all meant and how it works. A visit there is worthwhile and additional photos can I therefore save me. Anyone wanting to use only the light shaft, which may, after all, the magnifier fold: Simply the small spring clip pressing down to release it. Very intuitive. Better can I not imagine all and the quick-release plate is actually for Manfrotto 501PL compatible. What more do you want? A little less stiff adjustment of the diopter (simple mechanism for moving the finder optical system) would be nice, would have but possibly also the disadvantage is possibly to adjust by itself. So it is not difficult and turn around it brings in contrast to the optical viewfinder the camera there already visible changes also causes hardly noticeable improvements or deteriorations.
Who wants to film with his DSLR themselves should definitely identified, provided it fits with him because mechanically. It helps along the way to hold the camera halfway stable even without any bulky rig, because it gives a much better feedback of what you're shooting and thanks to Magic Lantern also a good substitute for an external monitor, some of cumbersome their own version various setting aids for overexposure, sharpness etc. retrofit and then also have weight, need batteries, somewhere will be mounted, ...
Conclusion: Indispensable!