![]() ![]() Precise, quiet focus for stills and movies The floating system reduces the size of the lens while maintaining outstanding clarity throughout the image area, from infinity to the closest focusing distance. Macro lenses are often used over a wide range of focusing distances, so a floating focus mechanism has been implemented for optimum suppression of close-focus aberration. Image-wide clarity from macro to infinity Individual calibration of each lens ensures optimum compensation for spherical aberration, resulting in smooth rendering of edges without a trace of ugly "nisen bokeh." A nine-blade circular aperture also contributes to great looking bokeh. Well-designed aspherical elements can reduce the total number of elements required in the lens, thus reducing overall size and weight.Beautiful background bokeh is synonymous with the G Lens name, and it can really make the subject stand out. Specially shaped "aspherical" elements near the diaphragm restore alignment of light rays at the image plane, maintaining high sharpness and contrast even at maximum aperture and can also be used at other points in the optical path to reduce distortion. This is caused by differences in refraction at different points on conventional spherical lenses which degrade image quality in large-aperture lenses. Spherical aberration is a slight misalignment of the light rays projected on the image plane. Smoother, more natural defocusing can be obtained as a result.Īspherical lens design dramatically reduces spherical aberration while also reducing lens size and weight. α lenses overcome this problem through a unique design that keeps the aperture almost perfectly circular from its wide-open setting to when it is closed by 2 stops. Conventional aperture blades have flat sides creating unappealing polygonal shaped defocussed points of light. This 'bokeh' effect of the blurred background can be enhanced with circular aperture blades used in this lens. ![]() When changing your aperture to defocus the background, the light sources appear blurred. The reflection suppression characteristic of the Nano AR Coating is superior to conventional anti-reflective coatings, providing a notable improvement in clarity, contrast, and overall image quality. This precisely defined regular nano-structure allows accurate light transmission, contributing to high-quality images, even more so than lenses with coatings that use an irregular nano-structure. Other advanced technologies, such as the Nano AR Coating and Super ED (extra-low dispersion) glass, elevate overall performance to an extremely high standard.Įffectively suppress reflections that can cause flare and ghosting with Sony's original Nano AR Coating technology. Sharp in-focus rendering is achieved with a floating focus mechanism that suppresses aberration equally at all focusing distances, whether the subject is far away or extremely close. Advanced optics and coatings with a 9-blade circular aperture deliver exceptionally smooth bokeh that G Lenses are renowned for. The full-frame 90mm medium telephoto macro E-mount lens features built-in image stabilization for sharp, clear images at up to 1:1 magnification, even when shooting handheld. When using this lens in an Ikelite housing, only autofocus is possible (no manual focus).įor extreme macro underwater photography with this lens, use the Nauticam SMC Super Macro Converter.Nauticam housing for A7II / A7RII / A7SII use Nauticam N100 Macro Port 105 #37126 and Nauticam focus gear SE90-F #37147.Nauticam housing for A7 / A7R / A7S use Nauticam N100 Macro Port 110 #37125 and Nauticam focus gear SE90-F #37147.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |