Posté: lundi 17 décembre 2018 - 12:44
Del-Uks a écrit :
J'avais lu sur un forum anglophone que le MS-Optics Apoqualia 28mm laissait rentrer la poussière dans l'appareil et qu'il fallait, dès lors, éviter son utilisation lors de certaines conditions... si on veut éviter de devoir nettoyer systématiquement son capteur. Les propriétaires peuvent-ils confirmer ?
Yorda a écrit :
L'epaisseur de ces objectifs surprend au debut mais c'est que du plaisir apres.Par contre je n'ai jamais lu qu le 28 laisser passer de la poussiere ca me parait bizarre.
Je suis retombé dur l'article, sur le site de Japan Camera Hunter...
Daniel Schaefer
Like most handmade items, this lens does require a degree of maintenance and attention that other modern optics never would. Since the lens has a classically open design in regards to the helical, it does breathe slightly as it is focused, meaning in a dusty setting, it has the definite potential to inhale particles into the camera.After shooting this digitally on my Sony A7s for a week, the additional dust was noticeable, but I had been shooting in an abandoned aluminum foundry in northern Washington, where lovingly a local said: “This is where America makes its dust.”
Ce qui suit est également à prendre en compte :
Daniel Schaefer
The most troubling downside is one that is common to most Miyazaki lenses over time, and one that for the most part is easily avoidable with standard maintenance. Since this is a handmade lens, the parts aren’t necessarily as permanently sealed to one another as a standard production modern optic, meaning that pieces can loosen over time unless carefully tightened during regular cleanings. In the case of most Miyazaki lenses, the piece that sees the most loosening is somewhat hazardously, the bezel around the rear element.The reason this is troubling is mainly that in the case of the element coming off altogether, it’s rattling around inside the body of a camera can cause serious and lasting damage to both lens and camera, leading to a truly annoying potential expense. That being said, as long as the operator of this optic knows that this is a potential factor, a simple careful twist during a monthly cleaning should be enough to prevent the lens from shifting at all in use.