El anillo prodigioso II.
Nikon Rumors presenta hoy un análisis muy completo de un adaptador milagroso de esos que preservan el factor de recorte, ganan un punto de luz, y además prometen no empeorar la calidad óptica del objetivo adaptado.
El más conocido de estos «anillos prodigiosos » es el Speed Booster de Metabones: Ftc 22-7-2013, pero hoy el que es sometido a prueba es un clon chino fabricado por una firma que se llama Zongyi.
El adaptador probado es para Nikon F a Sony NEX y se llama Lens Turbo.
Más que contaros cosas, os pongo aquí los tres apartados de conclusión del análisis: lo bueno, lo ni fu, ni fa, y lo malo:
The Good
- The build. All metal construction and solidly build; confidently attaches to the camera and lens. Good weight balance on the NEX 7 body.
- Image Quality. The high quality optics preserve the goodness of a lens. From what I see in the samples, the base performance of the lens is preserved in terms bokeh and sharpness. However, the opposite is also true. The «flaws» exhibited in a lens will also show up, notably chromatic aberrations when shooting wide open. Use with caution and slap the best lens you can afford for best results.
- Vignetting is Well Control. Vignetting does exist but not much more than the natural vignetting from the lens.
- Virtually No Distortion. Although this evaluation isn’t scientifically based, I did not detect any distortion during use.
The Neutral
- Improvement on the optical design. In low light scenes with areas of direct, bright light source, I did encounter the appearance of «flares». They are a slightly bluish halo-like smudge around a high contrast light source. In all fairness, I only encounter this issue in a couple out of a batch of more than a hundred shots.
- Stiff Mounting Ring. It took more effort than usual to mount or dismount the lens from the F-mount side of the adapter. However, the NEX mounting ring was smooth and did not exhibit any stiffness.
- All Manual Setting. For me, I don’t mind shooting all manual. For others, this maybe a drawback. A useful tip for NEX users: the peaking feature is your friend!
The Bad
- The packaging. I am usually not very picky when it comes to the packaging. When I first inspected the Lens Turbo minutes after the unboxing, I discovered little black flakes inside the adaptor. They resemble metal shaving which really made my heart sink for a moment. Then I realized that they were soft debris from protective black foam that the adaptor was shipped in. The debris were easily removed with a blower and a brush.
Vosotros mismos. hay un montón de imágenes de muestra, pero no se pueden ver a tamaño completo, así que no podemos ver nada.
Lo cuenta todo Nikon Rumors
Episodios anteriores:
- Análisis de «Dpreview» de original Metabones: Ftc 1-2-2013
- Presentación del «clon» chino a mitad de precio: Ftc 23-4-2013
