das Objektiv funktioniert sehr gut an meiner Z System Nikon. Die Abbildungsleistung ist durchaus ordentlich, lediglich die sehr filigranen Knöpfe zu Verstellung stören etwas den Gesamteindruck.

Super sharp, easy to use and excellent for architecture and landscape.

The optical structure is OK and the image quality is what you get with this kind of money but then again this is very good in it's own league.

El objetivo es bueno, con excelente calidad de imagen y fácil de usar (si uno tiene cierto conocimiento/práctica con objetivos descentrables). El mecanismo de rotación funciona con suavidad y precisión. Si uno desea la mejor calidad de las posibles, obviamente hay otras opciones (Canon, en mi caso), pero la enorme diferencia de precio hace que solo compense si uno lo necesita para comer. Para un uso como aficionado avanzado no se puede pedir mucho más, la verdad.Como puntos menos fuertes a tener en consideración: los controles son pequeños, particularmente los de bloqueo; la pestaña para desbloquear la rotación del descentramiento está muy próxima al cuerpo de la cámara y puede costar utilizarlo hasta que uno conozca bien el objetivo; el anillo de enfoque (suave, grande, preciso) está pegado al de control de la apertura: como es necesario abrir ésta para enfocar bien, debe tenerse cuidado al volver a nuestra apertura para la toma para no tocar el anillo de enfoque inadvertidamente.En general, un objetivo con una relación calidad/precio extraordinaria, con pequeños detalles que podrían mejorar la usabilidad pero apenas perceptibles en relación con la complejidad técnica del tipo de fotografía que con él se va realizar.

I have had this lens for less than 24hrs. I have never used a tilt/shift lens before but I read-up on them for two days before I received it. FIRST: YES THE LENS FITS BOTH A7R2 AND A7R3 (despite Amazon's confusion!). SECOND: BOTH BODIES WORK WITH THE LENS IN 'A' SETTING TO AUTOMATICALLY ADJUST EXPOSURE (the lens' instruction manual is not definitive on this topic). THIRDLY: IT IS NEARLY A THIRD OF THE PRICE OF CANON AND NIKON LABELLED TILT/SHIFT LENSES.I acquired this lens specifically to overcome converging verticals in architecture, art display and internal church photos.My first attempt was to use Shift to correct this distortion in wall hung art. Camera on tripod, level with wall and sensor vertical. Shift up, adjust aperture and focus, shoot Perfect. Far superior result from attempting post processing adjustment in Lightroom.Second attempt was to use horizontal Tilt to extend in-focus oblique shot of two paintings on the same wall 2 metres apart. Piece of cake. However I cannot imagine doing this more than once a year, if that. There are several clever stunts that you can carry out with this lens but I will consistently use it purely in correcting vertical distortion and for this the lens is worth its price.Is the lens as good as its £1,800 Canon/Nikon labelled lenses? Probably not. Is the competition worth three times the price? I am not tempted in the slightest, even if I could find a E Fit comparative lens.I am delighted with this lens and if I have any further comment after extended use I will amend this brief review.I will add that this lens is an extremely complex piece of machinery and if you are heavy handed best not risk it.One review I read remarked that after a short while one views distorted photos with an ever greater critical eye. I look forward to that time. For copyright reasons I have not included photos. May do so later.