Adaptador Canon a M4/3 y Nex CON DIAFRAGMA
Publicado: Vie Ene 21, 2011 1:06 amEstaba preguntándome qué tal funcionará este invento:
- New Canon EOS to Micro Four Thirds adapter with built-in Aperture control (but what about quality?)
- Adaptadores Canon EF para EVIL con anillo de aperturas
No creo que la posición de las hojas del diafragma en el eje de la óptica sea algo irrelevante y que puede situarse donde nos de la gana, no? en ese caso, el punto donde este adaptador coloca el diafragma será adecuado para cualquier óptica Canon? estaba pensando en el Canon 10-22. EDITO: veo que justo con este zoom es incompatible.
Y contestaciones en 43rumors, así que queda claro que no es una solución:
"The picture quality is horrible, without the need to test it!!!
Why?
The reduction has it’s owen aperture. So the lens is full open nostop! The problem ofcorse is you can’t place aperture where ever you like …. aperture must be placed in the point where the picture is maximum unsharp, and thats inside a lens. In this case aperture is at the end of lens so surly on wrong place, this will cause vigneting, strong difraction effects caused by the aperture ….
This aperture isn’t 100% correct (wrong place of aperture) this can cause lots of wrong expositures.
If you want to test it just take a peace of paper cut a small hole in it (tiny …) put it in some cheap adapter and check the picture quality.
sry for my English, but this adapter is bullshit."
Salu2
- New Canon EOS to Micro Four Thirds adapter with built-in Aperture control (but what about quality?)
- Adaptadores Canon EF para EVIL con anillo de aperturas
No creo que la posición de las hojas del diafragma en el eje de la óptica sea algo irrelevante y que puede situarse donde nos de la gana, no? en ese caso, el punto donde este adaptador coloca el diafragma será adecuado para cualquier óptica Canon? estaba pensando en el Canon 10-22. EDITO: veo que justo con este zoom es incompatible.
Y contestaciones en 43rumors, así que queda claro que no es una solución:
"The picture quality is horrible, without the need to test it!!!
Why?
The reduction has it’s owen aperture. So the lens is full open nostop! The problem ofcorse is you can’t place aperture where ever you like …. aperture must be placed in the point where the picture is maximum unsharp, and thats inside a lens. In this case aperture is at the end of lens so surly on wrong place, this will cause vigneting, strong difraction effects caused by the aperture ….
This aperture isn’t 100% correct (wrong place of aperture) this can cause lots of wrong expositures.
If you want to test it just take a peace of paper cut a small hole in it (tiny …) put it in some cheap adapter and check the picture quality.
sry for my English, but this adapter is bullshit."
Salu2
