Martin Vronsky

Specs: Lens type - Zoom lens Max Format size - 35mm FF Focal length - 70–200 mm Image stabilization - Yes Lens mount - L-Mount, Sony FE Aperture Maximum aperture - F2.8 Minimum aperture - F22 Aperture ring - Yes Number of diaphragm blades - 11 Aperture notes - Rounded blades Optics Elements - 20 Groups - 15 Special elements / coatings - 6 FLD, 2 SLD, 3 aspherical Focus Minimum focus - 0.65 m (25.59″) Maximum magnification - 0.19× Autofocus - Yes Motor type - Linear Motor Focus method - Internal Distance scale - No DoF scale - No Physical Weight - 1345 g (2.97 lb) Diameter - 91 mm (3.58″) Length - 205 mm (8.07″) Materials - Magnesium alloy and thermally-stable composite Zoom method - Rotary (internal) Zoom lock - Yes Filter thread - 77 mm Hood supplied - Yes Hood product code - LH860-01 Tripod collar - Yes

Press release: SIGMA Announces Release of 70-200mm F2.8 DG DN OS | Sports Lens Ronkonkoma, NY, November 16, 2023 – SIGMA Corporation of America, the US subsidiary of SIGMA Corporation (CEO: Kazuto Yamaki. Headquarters: Asao-ku, Kawasaki-shi, Kanagawa, Japan) is pleased to announce the official release of the highly-anticipated SIGMA 70-200mm F2.8 DG DN OS | Sports lens. A reliable and lightweight large-aperture telephoto zoom lens designed exclusively for full-frame mirrorless cameras, the 70-200mm F2.8 DG DN OS | Sports is available for Sony E-mount and Leica L-Mount. Combining high-speed AF, remarkably effective OS, exceptional mechanical reliability, and superior optical performance, this high-performance lens is purpose-built to meet the rigorous demands of professionals, and is suitable for a wide range of styles and genres including nature, wildlife, photojournalism, action sports, wedding and portraits. The lens will retail for $1,499 USD and will be available through authorized retailers on December 7, 2023. Dust and splash-proof construction, high-performance optical stabilizer (OS), and an inner zoom mechanism that does not affect barrel length, are all features designed for the most demanding photographic conditions. It is also the first SIGMA DN zoom lens to be equipped with an aperture ring (click/declick type). Streamlined optical design and a multi-material structure featuring magnesium and TSC have resulted in a lightweight lens body. A new compact tripod collar and foot also help minimize weight, as does a CFRP (carbon fiber-reinforced plastic) lens hood. Compared to the 70-200mm F2.8 DG OS HSM | Sports for DSLR cameras (1,805g for SA mount), the 70-200mm F2.8 DG DN OS | Sports is significantly lighter (1,345g for L-Mount). Featuring Dual HLA-driven floating focus for fast, accurate AF, the focus lens is driven using a high-thrust HLA (High-response Linear Actuator) as the focus actuator, and a floating focus is used to achieve high-speed AF drive. The floating configuration of this lens, in which the two focus groups are driven in opposite directions, reduces the amount of movement of each focus group to about half that of a single group focus system, achieving extremely fast AF that is highly responsive. The latest OS2 stabilization algorithm achieves image stabilization performance of 7.5 stops at the Wide end and 5.5 stops at the Tele end. The SIGMA 70-200mm F2.8 DG DN OS | Sports has very minimal focus breathing on both the wide and tele ends, making it a powerful lens for video applications. The minimal change in center of gravity enables stable shooting in all situations, including handheld, on a tripod, and with a gimbal. During zooming, five groups are moved to suppress aberration fluctuation, achieving high optical performance throughout the zoom range. S | Sports SIGMA 70-200mm F2.8 DG DN OS Performance, reliability, and mobility at its highest level. High-speed AF and optical stabilizer function that maximize superior optical performance Top-level build quality condensed into a highly mobile lens A wealth of functions to assist professionals Available mounts: L-Mount, Sony E-mount Launch date: December 7, 2023 Packed with all the technology SIGMA has to offer. The large F2.8 aperture provides stable and high descriptive performance at all zoom and focus ranges. The high-speed AF with a dual HLA (High-response Linear Actuator) based on a floating focus structure, and the Optical Stabilizer function with the OS2 algorithm with up to 7.5 stops of correction effect*, ensure that users can take the right shot when there is no room for error. The highly mobile lens with high durability, rigidity, and texture is equipped with a wealth of functions to assist comfortable shooting, including an inner zoom mechanism for easy handling, as well as an aperture ring and switches with various customization functions. The flagship SIGMA 70-200mm F2.8 DG DN OS | Sports, combined with the best of SIGMA's latest technologies to meet the high-level demands of professionals, has finally arrived. * Based on CIPA guidelines (Measured at 70mm and 200mm with a 35mm full-frame image sensor) [Key Features] 1. High-speed AF and optical stabilizer function that maximize superior optical performance The SIGMA 70-200mm F2.8 DG DN OS | Sports, developed with professional use in mind, offers not only high optical performance, but also high-speed AF with a dual HLA (High-response Linear Actuator) and an optical stabilizer function with up to 7.5 stops. The Sports line lenses offer high optical performance, and all functions are based on state-of-the-art technology. High descriptive performance at all zoom and focus ranges The latest optical design, which employs luxurious glass materials including 6 FLD and 2 SLD elements of special low-dispersion glass, delivers high resolving power throughout the entire zoom range. Three aspherical lenses are used, as they are now indispensable for superior optical performance and streamlined lens construction. The exceptionally high precision of the aspherical lenses, which take advantage of the technical capabilities of SIGMA's only production facility, the Aizu factory, further improves optical performance. The incorporated floating focus is advantageous in improving short-range performance, ensuring a stable, high-level image quality throughout the entire range from the minimum focusing distance to infinity. High-speed AF with a dual HLA The SIGMA 70-200mm F2.8 DG DN OS | Sports with floating focus has a structure in which the two focus groups move in opposite directions, thereby reducing the amount of focus lens movement by about half. In addition, the use of an HLA (High-response Linear Actuator) motor in each of the two focus groups enables high-speed autofocusing. In addition to being fast and accurate, the lens also employs a control program that is designed to be quiet, so users can shoot movies comfortably without worrying about noise. OS2 algorithm in optical stabilizer function The latest OS2 optical stabilization algorithm provides an extremely high image stabilization effect of 7.5 stops at the wide end and 5.5 stops at the telephoto end*. The lens is equipped with two OS modes: Mode 1 is suitable for general shooting, and Mode 2 is ideal for panning shots of motorsports and other sports. In Mode 2, SIGMA's Intelligent OS, an algorithm specially designed for panning shots, enables effective image stabilization even when the camera is moved vertically or diagonally, irrespective of the horizontal and vertical orientation. This ensures that the subject's movement can be captured without losing the panning shot effect. * Based on CIPA guidelines (Measured at 70mm and 200mm with a 35mm full-frame image sensor) Designed to minimize focus breathing The lens has been designed to suppress focus breathing. The change in angle of view due to focus shift is minimized, creating a natural-looking focus shift when recording video. Designed to minimize flare and ghosting Flare and ghosting, which reduce image quality, are addressed under all conditions of incident light based on the most advanced simulation technology. High backlight resistance enables clear and sharp images under any lighting conditions. 2. Top-level build quality condensed into a highly mobile lens SIGMA is committed to excellent build quality in all its lenses. Among them, the SIGMA 70-200mm F2.8 DG DN OS | Sports, which is part of the Sports line, offers not only high weather resistance performance for shooting in harsh environments, but also improved quality and durability through the use of cutting-edge materials in appropriate places based on a streamlined optical and mechanical design. At the same time, a high level of mobility is also realized, resulting in a professional equipment that can be used with confidence over the long term. High quality and durability despite its small size and light weight The latest optical and mechanical design streamlines the lens configuration and internal structure, resulting in a significantly smaller and lighter body than the previous SIGMA 70-200mm F2.8 DG OS HSM | Sports model. The body, including the hood, features a "multi-material structure" that optimally arranges materials such as magnesium, CFRP*1, and TSC*2. Even with enhanced mobility, the lens features SIGMA's renowned excellent build quality, including high durability, reliable rigidity, and various control rings and switches that have been carefully designed to feel good. * 1 CFRP (carbon fiber reinforced plastic), a light but strong material used in the interior and exterior fittings of aircraft, among many other applications. * 2 TSC (Thermally Stable Composite) is a type of polycarbonate with a thermal expansion rate similar to that of aluminum. It has high affinity to metal parts which contributes to high quality product manufacturing. Adoption of inner zoom mechanism The zoom mechanism employs an inner zoom. Since the total length of the lens does not change with zoom operation, it is easy to handle when shooting hand-held, highly stable when installed on a gimbal, and resistant to dust and water droplets. Weatherability of Sports line specifications The mount connection, manual focus ring, zoom ring, switches, switch panel and exterior connection are all dust and splash resistant* to prevent dust and dirt from entering the lens. Further, the front element of the lens features a water and oil repellent coating to facilitate maintenance when water droplets or dust adhere to the lens. * The structure is designed to be dust and splash resistant, but not waterproof. Be careful not to bring the lens in contact with a large amount of water. Water inside the lens may cause major damage and even render the lens unrepairable. 3. A wealth of functions to assist professional photographers In addition to an aperture ring, a magnesium tripod mount, and various switches, the highly mobile lens has a wealth of functions available, enabling a more comfortable and versatile shooting experience for users. Equipped with an aperture ring This is the first SIGMA zoom lens for still photography to be equipped with an aperture ring. It is also equipped with an aperture ring click switch and an aperture ring lock switch, allowing for aperture operation suited to the shooting application. Newly developed tripod socket The lens body incorporates an Arca-Swiss compatible magnesium alloy tripod socket. The detachable leg is newly designed for the SIGMA 70-200mm F2.8 DG DN OS | Sports in order to achieve a compact and lightweight design. Customizable functions Equipped with a Focus Limiter switch, the lens enables users to limit the focus driving range during AF when necessary, allowing quick and precise focusing. Further, the lens features three AFL buttons* ready to be assigned to preferred functions using the camera. The AFL buttons are easy to operate regardless of how the camera is oriented or which settings are used. For the L-Mount version, the SIGMA USB DOCK UD-11 can be used to set OS operation or focus limiter range for the Custom Mode switch. * Only on compatible cameras. Available functions may vary depending on the camera used. Tele Converter for L-Mount (1.4x / 2.0x) The L-Mount version of the lens is compatible with the SIGMA TELE CONVERTER TC-1411 (1.4x) and TC-2011 (2.0x). Using a tele converter, the focal length can be multiplied by 1.4x and even 2x, for AF-enabled shooting at ultra-telephoto focal lengths of up to 400mm. Cover-type lens hood included A lightweight, high-strength, exclusive cover-type lens hood made of CFRP* is included. In addition to its slim design that does not impair the mobility of the lens, the tip of the hood is rubberized to protect the lens from abrasion and scratches caused by placing the lens upside down. * CFRP (carbon fiber reinforced plastic), a light but strong material used in the interior and exterior fittings of aircraft, among many other applications. [ Additional Features ] Lens construction: 20 elements in 15 groups (6 FLD, 2 SLD, 3 aspherical elements) OS (Optical Stabilizer) function with the latest "OS2" algorithm Inner zoom Inner focus system Compatible with high-speed autofocus HLA (High-response Linear Actuator) Compatible with Lens Aberration Correction
 * Function available on supported cameras only. Available corrections or auto correction functionality may vary depending on the camera model. 
* On cameras where lens aberration correction is controlled with 'ON' or 'OFF' in the camera menu, please set all aberration correction functions to 'ON' (AUTO). Supports DMF and AF+MF Compatible with AF assist (Sony E-mount only) Nano Porous Coating Super Multi-Layer Coating Water and Oil Repellent Coating (front element) Aperture ring Aperture ring click switch Aperture ring lock switch AFL button (3 buttons)
 * Only on compatible cameras. Available functions may vary depending on the camera used. Focus Limiter switch Focus Mode switch Support for switching between linear focus / non-linear focus ring settings (for L-Mount only) Function available on supported cameras only. OS switch Custom Mode switch Dust and Splash Resistant Structure LENS HOOD LH860-01 TRIPOD SOCKET TS-151 (detachable lens foot type) Compatible with SIGMA TELE CONVERTER TC-1411 / TC-2011 (sold separately / for L-Mount only) Compatible with SIGMA USB DOCK UD-11 (sold separately / for L-Mount only) Designed to minimize flare and ghosting Every single lens undergoes SIGMA's proprietary MTF measuring system 11-blade rounded diaphragm High-precision, durable brass bayonet mount Mount Conversion Service available "Made in Aizu, Japan" craftsmanship Learn more about SIGMA's craftsmanship here: https://www.sigma-global.com/en/about/craftsmanship/ [ Contact ] For further information, please contact your local authorized SIGMA Service Station listed here: https://www.sigma-global.com/en/world-network/ [ Information ] SIGMA Corporation: https://www.sigma-global.com/en/ Product information: https://www.sigma-global.com/en/lenses/s023_70_200_28/

Specs: Price MSRP - $279 Body type Body type - Compact Body material - Composite, metal Sensor Max resolution - 4608 x 3456 Image ratio w:h - 1:1, 4:3, 16:9 Effective pixels - 16 megapixels Sensor size - 1/2.3" (6.17 x 4.55 mm) Sensor type - BSI-CMOS Color space - sRGB Color filter array - Primary color filter Image ISO - Auto, 125-6400 White balance presets - 6 Custom white balance - Yes Image stabilization - Digital only Uncompressed format - No JPEG quality levels - Fine, normal, basic File format: JPEG (Exif v2.3) Optics & Focus Focal length (equiv.) - 28–140 mm Optical zoom - 5× Maximum aperture - F3.5–5.5 Autofocus: Contrast Detect - (sensor) Multi-area Center Tracking Single Continuous Face Detection Live View Autofocus assist lamp - Yes Digital zoom - Yes (7.2X) Manual focus - Yes Normal focus range - 50 cm (19.69″) Macro focus range - 1 cm (0.39″) Number of focus points - 9 Screen / viewfinder Articulated LCD Fixed Screen size - 2.7″ Screen dots - 230,000 Touch screen - No Screen type - TFT LCD Live view - Yes Viewfinder type - None Photography features Minimum shutter speed - 4 sec Maximum shutter speed - 1/4000 sec Exposure modes: Auto Program Scene modes: Auto Picture Program HDR Handheld Night Snap Movie High Speed Movie Digital Microscope Landscape Flower Portrait Underwater Underwater Movie Interval Shot Interval Movie Surf & Snow Kids Pet Sport Night Scene Night Scene Portrait Fireworks Food Digital SR Report Green Built-in flash - Yes Flash range - 5.50 m (at Auto ISO) External flash - No Flash modes - On, off Drive modes: Single Self-timer Continuous Burst Remote control Auto Bracketing Self-timer - Yes (2 or 10 secs, remote) Metering modes: Multi Center-weighted Spot Exposure compensation - ±2 (at 1/3 EV steps) AE Bracketing - ±2 (3 frames at 1/3 EV steps) Videography features Format - MPEG-4, H.264 Modes: 1920 x 1080 @ 30p, MOV, H.264, Linear PCM 1280 x 720 @ 120p, MOV, H.264, Linear PCM 1280 x 720 @ 60p, MOV, H.264, Linear PCM 1280 x 720 @ 30p, MOV, H.264, Linear PCM Microphone - Mono Speaker - Mono Storage Storage types - Internal + SD/SDHC/SDXC card Storage included - 68MB Connectivity USB - USB 2.0 (480 Mbit/sec) HDMI - Yes (micro-HDMI) Microphone port - No Headphone port - No Remote control - Yes (Wireless) Physical Environmentally sealed - Yes Durability - Waterproof, Shockproof Battery - Battery Pack Battery description - D-LI92 lithium-ion battery & charger Battery Life (CIPA) - 300 Weight (inc. batteries) - 193 g (0.43 lb / 6.81 oz) Dimensions - 123 x 62 x 30 mm (4.84 x 2.44 x 1.18″) Other features Orientation sensor - Yes Timelapse recording - Yes GPS - None

Press release: Ricoh announces PENTAX WG-90 waterproof digital compact camera WG series to be marketed under PENTAX brand, joining other dustproof, waterproof and weather-resistant products PARSIPPANY, New Jersey, November 14, 2023 - Ricoh Imaging Americas Corporation today announced the PENTAX WG-90 digital camera. The WG series all-weather adventure cameras – known for their rugged chassis, plus waterproof and shock-resistant features – will now be offered under the PENTAX brand which is regarded industry-wide for developing dustproof, waterproof and weather-resistant products. The PENTAX WG-90—available in early 2024—effectively replaces the current-model RICOH WG-80 camera, which will continue to be available through the holidays and into the new year. The PENTAX WG-90 is a compact, waterproof digital compact camera with a lightweight body that features a high-performance, five-times optical zoom lens with a focal-length coverage from 5mm to 25mm (equivalent to approx. 28mm to 140mm in the 35mm format). Its back-illuminated, 16-megapixel CMOS image sensor and high-performance imaging engine deliver a top sensitivity of ISO 6400 and produce super-high-resolution images. Offered in either an attractive blue or classic black body finish, the PENTAX WG-90 assures outstanding reliability and operability even under harsh conditions where ordinary compact cameras and smartphones may be unusable. Its outdoor-friendly monitor swiftly optimizes the image brightness level to improve the visibility of a scene in bright outdoor locations. It also features a built-in ring light with adjustable illumination levels that powers the PENTAX-original Digital Microscope mode, allowing the user to capture clear, vivid images of a microscopic world normally undetectable to the naked eye. The PENTAX WG-90 can be used for a wide range of scenes and subjects, ranging from casual snapshots to outdoor and underwater photography, and even in specialized worksite applications. The PENTAX WG-90 is designed to be waterproof down to a depth of 46 feet (14 meters), shockproof against a fall from a height of five feet (1.6 meters), and freeze-proof against temperatures as low as 14°F (-10°C). |Main Features of the new PENTAX WG-90| 1. Heavy-duty construction assuring underwater shooting down to 46 feet (14 meters), for up to two hours of continuous operation The WG-90’s solid, airtight body is not only waterproof down to a depth of (46 feet) 14 meters for up to two hours of continuous operation (equivalent to IPX 8 or JIS Class 8), but is also shockproof against a fall from a height of five feet (1.6 meters),* and dustproof (equivalent to IPX 6 or JIS Class 6), freeze-proof to temperatures as low as 14°F (-10°C), and crushproof against weights up to 100kgf (kilogram force).** Thanks to this heavy-duty construction, the WG-90 performs superbly and dependably even in harsh, demanding outdoor conditions. 2. Exceptional image quality The WG-90 is equipped with a back-illuminated CMOS image sensor, which assures excellent high-sensitivity and low-noise characteristics and high-speed readout of image data signals. Coupled with a high-performance imaging engine, this image sensor delivers a top sensitivity of ISO 6400 and super-high-resolution images with approximately 16.0 effective megapixels. It also provides advanced image processing functions, made possible by super-resolution technology, to deliver sharper, clearer, higher-resolution images. It even offers such innovative shooting features as Handheld Night Snap mode, which automatically produces a single, blur- free composite image using several images of the same nighttime scene. 3. Six Macro Lights to assist close-up photography Ideally positioned around the circumference of the lens barrel for macro shooting, six LED Macro Lights provide bright, uniform illumination on a subject when the Digital Microscope mode is selected to magnify a given subject on the LCD monitor, closely observe the microscopic world undetectable with the naked eye and capture the subject in a high- resolution macro image. In the Macro Lighting mode,*** the camera even allows the user to adjust the illumination intensity in five levels, and optimize the close-range flash photography based on the subject or the photographer’s creative intention. In order to minimize the effects of camera shake and subject movement, the Instant Illumination Enhance function lets the photographer use a higher shutter speed by automatically raising the discharge level of the Macro Lights at the moment of shutter release. The Self-Portrait Assist mode uses the blink of an LED lamp to check if the subject’s face has been safely captured within the picture frame, while the LED Lighting mode makes the Macro Lights function as a lighting device in the dark. 4. 2.7-inch LCD monitor with Outdoor View Setting mode The WG-90 comes equipped with a 2.7-inch LCD monitor with horizontally expanded 16:9 proportions and approximately 230,000 dots. Thanks to the AR (Anti-Reflection) coating applied to its surface, the monitor minimizes annoying glare and reflections to assure a sharp, clear on-screen image, even in the harsh sunshine often encountered during outdoor shooting. It also provides the Outdoor View Setting mode, which automatically optimizes the monitor’s brightness level for a given lighting condition to improve the visibility of the on- screen image. 5. Underwater-exclusive shooting modes Based on the data of images captured underwater, the Underwater and Underwater Movie shooting modes are programmed to effectively compensate for the loss of contrast caused by the diffusion of light in the water, while enhancing the reddish hues which fade away in the water. These underwater-exclusive modes capture sharp, clear images of underwater scenes. In the Underwater mode, the Flash Off + Flash On option allows the user to consecutively capture two images with a single shutter release — one without flash and another with flash. 6. 5X optical zoom lens with a 28mm wide-angle coverage The WG-90 features a high-performance, five-times optical zoom lens with focal-length coverage from 5mm to 25mm (equivalent to approx. 28mm to 140mm in the 35mm format) to accommodate a wide range of scenes and subjects, including sweeping landscapes. It also provides other user-friendly shooting functions such as: the Intelligent Zoom function that extends the zoom range by approximately 36 times**** (equivalent to 1008mm in the 35mm format) for super-high-magnification telephotography without compromising image quality; and an interval shooting mode that comes in handy for fixed point photography. 7. Triple anti-shake protection to prevent blurred images in all applications (1) Pixel Track SR mechanism: When recording still images, this advanced shake-reduction mechanism effectively compensates for camera shake by digitally processing affected images. (2) Digital SR mode: When the camera detects low-light conditions in still-image shooting, this mode automatically raises the sensitivity to as high as ISO 6400, making it possible to use a higher shutter speed and effectively minimize the adverse effect of camera shake and subject shake in poor lighting conditions. (3) Movie SR mode: During movie recording, this mode effectively compensates for the misalignment of images caused by camera shake through the use of exclusive software to produce beautiful, blur-free movie clips. 8. Full HD Movie recording for extended shooting of high-quality movies The WG-90 provides Full HD movie recording using the H.264 recording format, letting the user capture high-quality, extended movie clips (1920 X 1080 pixels, 16:9 proportions) at a frame rate of 30 frames per second. To add some creative touches to movie recording, it also features a high-speed camera function***** for slow-motion playback of captured movie clips, and an interval movie function. A micro-HDMI terminal (type D) is also provided on the camera body for simultaneous output of Full HD movie clips and sound to external audio-visual devices. 9. Other features: (1) Macro stand (included) to maintain a minimum focusing distance of one centimeter to the subject during extended observation and shooting of macro images (2) Auto Picture mode to automatically select the most appropriate shooting mode from 16 different scene modes (3) High-speed Face Detection function to capture as many as 32 faces in focus in approximately 0.03 seconds (minimum); Smile Capture function to automatically release the shutter when the subject’s smile is detected (4) Outdoor-friendly Style Watch function to display the current time on the LCD monitor, using an extended push of the OK button when the camera’s power is turned off (5) Delay-free, pushbutton start of the playback mode, using an extended push of the playback button while the camera’s power is turned off (6) Compatibility with the optional O-RC1 Remote Control unit****** to facilitate wireless, remote shooting (7) Compatibility with the optional O-CC1252 Protector Jacket to protect the camera from stains and scratches * Measured using RICOH IMAGING-original testing standards — from a height of 1.6 meters, onto a surface of 5cm-thick plywood — conforming to Method 516.5-Shock of the MIL- Standard 810F. ** Measured using RICOH IMAGING-original testing standards. *** The Macro Lights can be used in Program, Movie and Report modes. **** This function is available when the recorded size of 640 is selected. ***** When this function is selected, the recorded size is fixed at 1280 X 720 pixels. ****** This accessory cannot be used in the water.