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Fujifilm Patents XF16-55mmF2.8… with OIS !



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XF16-55mmF2.8 OIS len

egami spotted the following patent: an XF16-55mmF2.8 OIS lens… yep, with OIS!

Fujifilm received quite a shitstorm because of the lack of OIS in the XF16-55mmF2.8. The official explanation why Fujifilm didn’t implement OIS in the 16-55 can be found here:

OIS needs to move the lens inside to compensate for camera shake and as a result can cause loss of resolution in the edges of the image. In long zoom lens such as the XF50-140mmF2.8, the angle of view is narrow enough to not show this negative effect of OIS in the edges. However, the angle of view of the XF16-55mm, when set to the widest setting, is large enough for OIS to affect resolution at the edge of the image. Considering this trade-off, because we wanted this zoom lens to start wide at 16mm and F2.8, and we wanted to best edge-to-edge quality throughout the entire zoom range, we decided to not employ OIS.”

XF 16-55mm (save $200): BHphoto / AmazonUS / FocusCamera / Adorama / Pictureline

PATENT : google translated

Fujifilm patent applications corresponds to the anti-vibration 16-55mm F2.8 but is an optical system, the was released is not an anti-vibration 16-55mm F2.8 It was. Since the anti-vibration corresponding to the lens is bloated, is that of to have to dare not designed with anti-vibration. Or if there the Kai, XF FUJINON 16-55Mm F2.8 It is R LM WR good lens of reputation.

But better to hesitation that it is not in the anti-vibration would be many. Because when you pursue the optical performance lens resulting in a bloated, Sony and Olympus , as, in the telephoto lens Dual IS, I standard system is perhaps good to within the body anti-shake.

Fujifilm 16-55mm F2.8 OIS patent of Optical technology and lens design] Fujifilm corresponds to the anti-vibration 16-55mm F2.8 of patent is being filed.

Description, self-interpretation of the patent literature

Patent Publication No. 2016-109719
Published 2016.6.20
Filing date 2014.12.2
Example 1
Focal length f = 16.492 31.059 53.436
Bf 22.000
FNo. 2.88 2.74 2.89
Angle of view 2ω 87.0 48.6 28.8
Positive and negative positive and negative positive 5-group zoom
Anti-vibration (part of the third group)
Inner focus (group 4)