Sigma 400-800mm f/8 and 180-800mm f/5.8-8.4 Patents Found

By Louis Ferreira | Published: June 8, 2025


Sigma patent filings for a Sigma 400-800mm f/8 and Sigma 180-800mm f/5.8-8.4 were found and you can read them below:

overview

  • [Publication number] P2025085984
  • [Release date] 2025-06-06
  • [Name of invention] Telephoto zoom lens
  • [Application date] 2023-11-27
  • [Applicant]
    [Identification number] 000131326
    [Name or company name] Sigma Corporation
  • To provide a telephoto zoom lens that reduces the overall length and weight of the entire lens system and has little aberration variation over the entire shooting range.
  • [Background Art]
    [0002]
    Telephoto lenses are generally designed to have a short overall length compared to the focal length by adopting a so-called telephoto type power arrangement with a positive front group and a negative rear group. In addition, since the diameter of the front group of a telephoto lens is determined by the entrance pupil diameter of the entire system, if the focal length is designed to be long to obtain a desired angle of view, the diameter of the front group becomes large and the weight becomes heavy. Since the diameter of the front group becomes large and the weight becomes heavy, the center of gravity of the optical system moves away from the photographer, which increases the physical burden on the photographer, especially when the lens is held horizontally. Furthermore, if this is made into a zoom lens, the overall length of the optical system becomes long in order to secure the space required for zooming, and the center of gravity of the optical system moves even further away from the photographer.
  • According to the present invention, it is possible to provide a telephoto zoom lens that reduces the overall length and weight of the entire lens system and has little aberration fluctuation throughout the entire shooting range.


Example 1

  • Focal length: 309.00-579.00
  • F-number: 4.11-4.12
  • Angle of view: 7.89-4.21
  • Image height: 21.63
  • Total length: 480.57
  • Back Focus: 34.6000


Example 2

  • Focal length: 409.00-785.00
  • F-number: 8.20-8.21
  • Angle of view: 5.96-3.09
  • Image height: 21.63
  • Total length: 447.39
  • Back Focus: 38.9535


Example 6

  • Focal length: 185.40-785.00
  • F-number: 5.76-8.39
  • Angle of view: 13.15-3.09
  • Image height: 21.63
  • Total length: 478.85
  • Back Focus: 40.1124

via asobinet

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Venus Optics Laowa 8-15mm f/2.8 FF Zoom Fisheye

By Louis Ferreira | Published: June 7, 2025


Laowa 8-15mm f/2.8 FF Zoom Fisheye: Venus Optics / B&H Photo

The Laowa 8-15mm f/2.8 FF Zoom Fisheye Lens is remarkably compact. This portable design makes it one of the smallest and lightest full-frame fisheye zoom lenses with a constant f/2.8 aperture, ideal for travel, adventure, and handheld shooting. Perfect for landscape photographers, vloggers, and drone-based creators, this lens delivers bold fisheye visuals without the bulk, enhancing mobility and convenience for on-the-go content creation.

Dual Fisheye Effect
The Laowa 8-15mm f/2.8 FF Zoom Fisheye Lens delivers a versatile dual fisheye effect, seamlessly transitioning between two distinct visual styles on full-frame cameras. At the 8mm end, the lens produces a circular fisheye effect, capturing a 180° field of view. At the 15mm end, it transitions to a full-frame rectangular fisheye effect, filling the entire sensor with the characteristic fisheye distortion. The zoom capability allows creators to switch between these effects without changing lenses, enhancing flexibility for photography and videography applications.

Max. 180° circular fisheye
The Laowa 8-15mm f/2.8 FF Zoom Fisheye Lens offers an extra-wide view, delivering a sweeping 180° angle of view at its 8mm focal length on full-frame cameras. This expansive perspective captures vast scenes in a single frame, producing a dramatic circular fisheye effect with pronounced curvature, ideal for creative effects, astrophotography, and 360° panoramas.

Diagonal fisheye
As the lens zooms to 15mm, the angle of view narrows slightly, filling the full-frame sensor with a diagonal fisheye image that retains a wide, distorted perspective. Ideal for immersive landscapes, astrophotography,

Constant Fast Aperture
The Laowa 8-15mm f/2.8 FF Zoom Fisheye Lens boasts a constant T2.9 aperture throughout its zoom range, ensuring consistent exposure and depth of field control. This fast aperture excels in low-light situations, delivering outstanding performance for nighttime shoots or dimly lit environments, while also providing beautiful bokeh for creative flexibility in crafting immersive fisheye visuals.

Close Focusing Distance
The Laowa 8-15mm f/2.8 FF Zoom Fisheye Lens features a minimum focusing distance of 16cm (6.3”), enabling photographers and videographers to capture subjects at close range with striking visual impact. This close focusing capability enhances the lens’s fisheye distortion, delivering an exaggerated point of view (POV). Additionally, the close focus mimics a bugeye effect, creating a playful, almost cartoonish distortion where subjects appear disproportionately large, adding a unique and bold aesthetic to images and videos.

Full Frame Coverage
The Laowa 8-15mm f/2.8 FF Zoom Fisheye Lens offers full-frame coverage, unlocking the full potential of high-resolution cameras. It delivers a true 180° circular fisheye effect at 8mm and a rectangular fisheye at 15mm, ensuring edge-to-edge clarity and maximum angle of view without cropping.

Specs:

Product nameLAOWA 8-15mm F2.8 FF Zoom Fisheye
Format CompatibilityFF
Focal Length8-15mm
ApertureF2.8-22
Angle of view175°-180°
Lens Structure13 elements in 9 groups
Aperture Blades9
Focus Throw70°
Zoom Throw75°
Aperture Throw42°
Focus ScaleDual Scale
Min. Focusing Distance16cm
Max. Magnification0.23x
Focus modeManual Focus
Dimensions94.5mm*Ø76.4mm (measured in RF mount)
Weight~650g（not including the front and rear cap）
MountsE , Z , L , RF
PriceUSD699

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Sigma Prices Increased in US

By Louis Ferreira | Published: June 7, 2025


Sigma increased its prices in the US due to tariffs by about 10%, which is far below what people feared, but still disappointing. I wish they had mitigated price increases more because other companies are managing not to raise prices by shifting production around, but they might not have a high enough margin to work with. You can already see new prices on B&H Photo.

Here are a few examples:

Lens ModelOld PriceNew Price
Sigma 24-70mm f/2.8 DG DN II Art$1,199$1,319
Sigma 105mm f/2.8 DG DN Macro Art$799$879
Sigma 14mm f/1.4 DG DN Art$1,599$1,759
Sigma 28-105mm f/2.8 DG DN Art$1,499<$1,649
Sigma 28-45mm f/1.8 DG DN Art$1,349$1,489
Sigma 16mm f/1.4 DC DN Contemporary$489$538
Sigma 300-600mm f/4 DG OS Sports$5,999$6,599

via Photorumors

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TTArtisan M01 Announced

By Louis Ferreira | Published: June 6, 2025

TTArtisan released a TTArtisan Magnetic LED Light Film Canister a while ago, but now they have a new TTArtisan M01 flash with a wireless trigger on their Amazon Store.

  • Ultra-compact film-style design
  • Guide number GN12
  • 5600K ±200K color temperature
  • 4 power levels (1/8–1/1)
  • Up to 800 flashes per charge at average power
  • J01 Trigger only works with TTARTISAN flashes

Specification

Model
Light Type
Color Temperature
Guide Number (GN)
Power Levels
Recycle Time
Sync Speed
Sync Trigger
Flash Count
Built-in Lithium Battery
Charging Method
Size & Weight
Compatible Cameras:		M01
Xenon Flash
5600K+200K
GN12
4 levels (1/1 to 1/8)
Continuous flash at 1/8 power;
Approx. 4s at 1/1 power
1/250s(Max)
Hot Shoe /Wireless Trigger
Average power approx. 800 flashes
3.7v, 350mAh
Type-C Charging
Φ30*48mm,35g		Model
Compatible Flash
Channel
Signal Range
Battery
Charging Method
Size & Weight		J01
TTARTISAN Flash
Exclusive Channel
3m
Built-in Lithium Battery
Type-C Charging
16*31*42mm, 18g

https://www.youtube.com/watch?v=8QuJsqj6LFI

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Sony BURANO 8K Digital Motion Picture Camera Firmware 2.01 Update Released

By Louis Ferreira | Published: June 5, 2025


Sony has released firmware 2.01 for the Sony BURANO 8K Digital Motion Picture Camera, which can be downloaded here.

The Release Notes are below:

Sony is offering a system firmware update for Digital Motion Picture Camera BURANO “MPC-2610″.
Sony highly recommends this firmware update for immediate installation on all BURANO systems to ensure highest performance.
To add a new function and to improve the performance of BURANO, the updated software is released. (V2.01)
Note: UpdateGuide and ReleaseNotes are included in the zipped download file with main firmware module.

Applicable model Digital Motion Picture Camera BURANO “MPC-2610″.

Applicable system software version
The applicable products have system firmware version “Ver.1.10” or earlier.
After updating, the system firmware version will be “Ver.2.01”.

[Contents of V2.0]

IMPORTANT: Installation of firmware is at owner’s risk – please refer to our terms & conditions for details. Prior to installation always read installation instructions.

  • New Recording Formats
    • FFcrop 3.8K 16:9, up to 120fps
    • S35 4.3K 4:3 aspect imager scan mode, for anamorphic shooting, up to 60fps
    • S35 1.9K 16:9 up to 240fps
      NOTE: When 240fps is selected for S35 1.9K 16:9, SDI output and HDMI outputs are not available.
  • Addition of 1.8x setting to De-squeeze function for anamorphic lenses
  • Addition of 24.00p to X-OCN 16:9 imager scan modes
  • Additional exposure tools (High/Low key)
  • Support for Active/High Image stabilization in FF crop 6K, S35 1.9K 16:9
  • Addition of S&Q selection increments : 66, 72, 75, 88, 90, 96, 110fps
  • Expansion of White Balance memory positions from 3 to 8
  • Inclusion of VF Gamma Display Assist while using S-Log3 for monitoring
  • [Monitor FHD] is newly added as a factory preset for SDI output for both X-OCN and XAVC
  • Improved the on-screen display which places camera status information outside of the image in [Monitor FHD] in both HDMI and SDI output
  • Addition of breathing compensation and image stabilization metadata in X-OCN
  • Time Code and Clip Name metadata are now overlaid to [Monitor FHD]
  • Support for 23.98PsF for SDI output
  • Image quality is improved in S-Log3 external output in Base Look
  • 709tone is newly added as a preset Base Look
  • Improved image quality when applying user 3D LUTs
  • Compatible with commands for PL lenses supporting Cooke/i Technology
    • Focus & Zoom: Can be controlled on the BURANO, from M&C app or via external devices
    • Iris: Can be controlled from Remote Control Panel only
  • 24V option is added to PL mount voltage setting (PL-Mt Voltage)
  • Autofocus improvement when recording with 29.97P, 25P, 24P, and 23.98P
  • Proxy recording is now available with system frequency of 24P
  • Factory-reset frequency is changed from 59.94P to 23.98P
  • In addition to Reset/Reset without Network, [Reset to Factory Defaults] menu is now available to initialize all settings e.g. password, User 3D LUTs in memory
  • ・Variable ND control is now possible from Remote Control Panel (RCP)
  • “Imager Temperature” is added to the status screen (Information screen)
  • “Format Media” can be executed from the status screen (Media screen)
  • Camera ID and Reel # can be set in the status screen (Project screen)
  • Tally control is now possible from external devices connected via wired-LAN

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Sony ZV-1 II and ZV-1F Firmware 2.01 Updates Released

By Louis Ferreira | Published: June 4, 2025

Sony ZV-1 II: B&H Photo / Amazon / Adorama
Sony ZV-1F: B&H Photo / Amazon / Adorama

Sony ZV-1 II Benefits and Improvements Firmware 2.01 Download Here

  • Adds Brazilian Portuguese to the list of available languages
  • WPA and WEP functionalities are no longer supported. You will no longer be able to select WPA or WEP when connecting to Wi-Fi. Please use the more secure WPA2 moving forward
  • Improves the operational stability of the camera

Sony ZV-1F Benefits and Improvements Firmware 2.01 Download Here

  • Adds Brazilian Portuguese to the list of available languages
  • WPA and WEP functionalities are no longer supported. You will no longer be able to select WPA or WEP when connecting to Wi-Fi. Please use the more secure WPA2 moving forward
  • Improves the operational stability of the camera

Follow SonyAddict on Facebook, Twitter, Instagram, and YouTube

Plus our owners’ groups
Sony a1 Owners Group
Sony a9 Owners Group
Sony a7 Owners Group

Posted in Firmware updates, Sony ZV1| Tagged , , | Leave a comment