Tag Archives: patent

Patent : Canon EF 400mm f/2.8L IS USM Lens with Built-in 1.4x and 1.7x Extender


Canon has filed a new patent in Japan. From the application its the EF 400mm f/2.8L IS USM lens with built-in 1.4x and 1.7x extender. We can see that this new telephoto zoom lens patent shows off 2 stage built in extender (1.4x and 1.7x). So the focal length can be extended to 400mm, 560mm & 680mm. The currentContinue Reading

Sigma Patent for 8mm f/1.8 Fisheye MFT Lens


Sigma has filed a new patent in Japan. The new patent refers to a bright 8mm f/1.8 Fisheye designed for Micro Four Thirds cameras. A bright ultra wide-angle prime such as Sigma 8mm f/1.8 will be great for users of Micro Four Thirds system. However we have to underline that this is only the patent application. So don’t expect the product become available onContinue Reading

Tamron 60mm f/2.8 Macro VC Full Frame Lens Patent


Tamron filed a new zoom lens patent in Japan. The new patent describes the Tamron 60mm f/2.8 Macro VC lens designed for cameras with full-frame image sensors. Tamron has many good high maginifcation lenses especially ideal for macro and portrait photography. This lens also comes with built-in Vibration Compensation technology. This would be good news for the current Sony A7-series E-mount camera users. AsContinue Reading

Tamron 10-24mm f/3.5-4.5 Di II VC USD Lens Patent


Tamron has filed a patent for a new wide-angle zoom lens in Japan. The new patent describes the Tamron 10-24mm f/3.5-4.5 Di II VC USD lens designed for full-frame DSLRs. The optic in the patent application features a focal length ranges between 10-24mm. Along with the aperture range of f/3.5-4.5 and built-in image stabilization technology. According to the rumor mill, Tamron will announce aContinue Reading

Olympus 28mm f/1.4 Full Frame Mirrorless Lens Patent


Olympus has patented a new prime optic in Japan. It is the Olympus 28mm f/1.4 lens designed for full frame mirrorless cameras. This could refer to a future product like an Olympus full-frame mirrorless camera but on the other hand we might not see these products in mass production. Just like the previous 24mm f/1.4, 28mm f/2 and 35mm f/1.4 mirrorless lenses, this 24mm f/1.4Continue Reading

Canon Patent for EF 70-200mm F2.8 DO Lens


Canon has patented a new telephoto zoom lens in Japan. The new patent describes the EF 70-200mm F2.8 DO lens designed for Canon DSLRs with full-frame image sensors. The company already has a telephoto lens for the Canon SLR system and it is the EF 70-200mm f/2.8L IS II USM model. If the patent becomes live in production, it will be the replacement for thisContinue Reading

Canon patent for EF 24-105mm f/4 zoom lens


Canon has patented a new zoom lens in Japan. The new optic describes the EF 24-105mm f/4 standard zoom model designed for Canon DSLRs with full-frame image sensors. This is a standard zoom lens with a 24-105mm focal range and f/4 maximum aperture for Canon EOS SLR cameras. Canon has the EF 24-105mm f/4 L IS USM with Image Stabilizer technology steadiesContinue Reading

Fujifilm XF 16mm F1.8 lens patent


Fujifilm has patented a new XF 16mm F1.8 wide-angle lens designed for APS-c size sensor X-mount cameras. The new wide-angle prime optic would be the f/1.8 version of the current XF 16mm F1.4 model. It is effectively a 24mm lens, when mounted on an APS-C sensor X body. From the patent application the optical design of the XFContinue Reading

Sigma Issues Statement About EOS-1D X Mark II Compatibility


Sigma has announced that three of its lenses are not fully compatible with Canon’s new flagship EOS-1D X Mark II DLSR camera model. These lenses are the 20mm F1.4 DG HSM Art, 35mm F1.4 DG HSM Art and 85mm F1.4 EX DG HSM. This partial incompatibility may cause exposure inaccuracies when “Evaluative Metering” or “Centre-weighted Average Metering” metering is employed. Sigma are currently workingContinue Reading

Canon Patent for EF 1000mm f/5.6 DO Lens


Canon has patented a super-telephoto prime lens in Japan. The new patent describes the EF 1000mm f/5.6 DO lens designed for Canon DSLRs with full-frame image sensors. The EF 1000mm f/5.6 DO is a super-telephoto prime lens that was made by Canon. The optic will use an EF mount, and is compatible with the Canon EOS camera range. It has a focal length of 1000mm and a constant apertureContinue Reading