La suite des morceaux choisis :
(sur la mise à jour des objectifs, notamment pour améliorer l'autofocus en live view) "There's two issues. First of all, those lenses are made for still cameras. They're not made for live view autofocus. Live view autofocus is very similar to video usage. But the Hyper Sonic Motor -- or ultrasonic motors in general -- are not very suitable for that kind of purpose. Stepping motors or voice-coil motors are more suitable. (...) the other problem is firmware. Maybe we can optimize the autofocus function for live view mode, so we will continuously improve performance. (...) And we will soon release new firmware for our lenses, but just for existing lenses, not for the discontinued models."
(sur les raisons de l'arrêt de fabrication du 70 mm f/2,8 macro) "Not so much demand compared to other lenses, though, and also one of the glass materials [used in the lens] was discontinued. (...) It's a very unique glass material, so they say. So we could not continue the production."
(sur la possibilité d'un DP doté d'un zoom) "In terms of the size, now the new Quattro body can accept a bigger lens because the camera's designed for you to hold its grip with the right hand, and hold the lens bottom with the left hand. (...) So maybe the Quattro can accept a bigger lens. The other challenge is the quality. We'd have to implement a very high quality zoom lens, so that is still the challenge. (...) And especially a standard zoom lens is quite challenging. If it was a wide-angle zoom, that would be good."
(sur les 150-600 mm) "with these lenses, we started this project as a single project. (...) I also set the goals for this project -- first to implement better image quality. Especially, we wanted to minimize chromatic aberration, and extend the range to 600mm, maybe. Second was a dustproof and splashproof construction for the high-end customers. The third one was to be relatively compact and lightweight (...) We did not want to compromise any of these conditions, but eventually we realized that it's quite challenging to achieve them without any compromises. (...) in the end I decided to split this one single project into two, with the Sports lens maybe bigger, heavier and more expensive, to implement higher image quality, better construction and build quality, many features. And I wanted to implement a lightweight, compact -- but still good quality -- lens within the Contemporary line. (...) there is not so much difference between the two lenses in terms of optical performance. Especially if you look at the center of the frame, there's not so much difference -- maybe you can't see the difference. If you look in the corner at the telephoto end, the Sport lens' lateral chromatic aberration is significantly less than in the Contemporary line, though."
(sur la possibilité de sortir des versions pour mirrorless d'un objectif pour reflex, au cas particulier le 18-300 mm) "No, because it's made for the conventional DSLR. If we made it for the mirrorless or compact system camera, we'd have to change its optical design for focus tracking. (...) [the focus system] would have to be a stepping motor or voice coil motor. (...) In the case of the mirrorless camera, the focus has to always track the subject, because of the "wobbling", always moving a little bit. In this case, the focus glass must be very lightweight. (...) there are not many motors which have both strong power and compact size, so the lens element has to be very light." et donc la conception optique de l'objectif devrait être complètement différente "it [would have to be] totally changed, a different design and construction."
