Apple iMac M3 10-Core GPU

24-inch 4.5K Retina display Two Thunderbolt / USB 4 ports Magic Keyboard US Keyboard Apple M3 chip M3 brings incredible performance and capability so you can blaze through everyday activities, multitask across apps, pursue your creative passions and play your favourite games Run multiple apps, effortlessly edit 4K video and speed through thousands of photos Configure with up to 24GB unified memory Unified Memory Faster and more efficient than traditional RAM, unified memory is integrated within the M3 chip so apps can quickly share data between the CPU, GPU and Neural Engine Run multiple apps at once while performance remains fast and responsive Add memory to run more apps simultaneously for faster, more fluid multitasking Storage Solid-state drive (SSD) storage is the amount of space your iMac has for your documents, photos, music, videos and other files Delivers exceptional performance and speed when you start up your iMac, launch apps, open files and browse libraries Can be configured with up to 2TB of storage Ports Ports allow you to connect accessories like printers, cameras, an additional display and external drives to your iMac for data transfer, charging and syncing Thunderbolt ports let you connect high-speed accessories Models with two USB 3 ports allow you to connect even more The world’s best all‑in‑one computer, now supercharged by the M3 chip. With a stunning 24‑inch display that gives you all the space you need and an iconic design that livens up any space, iMac is perfect for work and play.

Action Camera Suction Cup

Action Camera Tripod

Action Camera Handlebar Mount

Action Camera Post Mount

Action Camera Bike Mount

Action Camera Chest Mount

Action Camera Head Mount

Action Camera Helmet Mount

Canon RF 50mm f/1.8 STM

Canon RF 50mm f/1.8 STM Canon RF 50mm F1.8 STM Prime Lens - RF Mount (p/n 4515C005). The RF 50mm F1.8 STM is a compact RF prime lens with a fast f/1.8 aperture capable of high quality images. The lens is small, light and quiet thanks to a redesign of optics for its RF mount and STM motor and ideal for exploring your creativity. Wide aperture creativity Create artistic and impactful images at lower ISO thanks to a wide f/1.8 aperture that achieves sharp focus on a subject yet delivers a beautiful blurred background. Sharp, quiet focusing The STM (Stepping Motor) technology focuses very smoothly and in near-silence, ideal for stills and video. Super Spectra Coating on the lens elements ensure quality. Compact and lightweight At 160g and 40.5mm, it is a highly compact and lightweight partner for your day-to-day shooting with EOS R-series cameras, with no adapter required. Focal Length: 50mm Max Aperture: f/1.8 Lens Mount: Canon RF Included in box • 1x Canon RF 50mm F1.8 STM Prime Lens - RF Mount • 1x Lens Cap E43 • 1x Rear End Cap - Lens Dust Cap RF  

Canon RF 24-240mm f/4-6.3 IS USM

Canon RF 24-240mm f/4-6.3 IS USM • RF-Mount Lens/Full-Frame Format • Nano USM AF System • Optical Image Stabilizer and Dynamic IS • Customizable Control Ring Covering an impressive wide-angle to super-telephoto range, the RF 24-240mm f/4-6.3 IS USM from Canon is a true all-in-one lens for nearly any shooting situation. Its 10x zoom range is complemented by an Optical Image Stabiliser, which compensates for up to five stops of camera shake to better realise sharp imagery when shooting handheld. Dynamic IS also benefits video recording, and better compensates for footage shot while walking or moving. Benefiting both stills and video is a Nano USM autofocus motor, which delivers quick, quiet, and precise focusing performance. Additionally, the lens also features a unique customisable Control Ring, which can be configured to adjust a variety of exposure settings, including aperture, ISO, and exposure compensation. All-in-one zoom is designed for use with full-frame Canon RF-mount mirrorless cameras. An Optical Image Stabilizer helps to minimise the appearance of camera shake by five stops to better enable working in low-light conditions and with slower shutter speeds. Also, when recording video, Dynamic IS is available and is a more active type of stabilisation to suit recording while walking or moving, and is especially useful at the wide-angle end of the zoom range. Nano USM system utilises both a ring type USM and an STM mechanism to realise quick and accurate focusing that is also smooth and near-silent to suit both photography and video applications. This focusing system also affords full-time manual focus control when working in the one-shot AF mode. Configurable Control Ring can be used to adjust a variety of exposure settings, including aperture, ISO, and exposure compensation.  

Canon RF 24-105mm F4-7.1 IS STM

Canon RF 24-105mm F4-7.1 IS STM Key Features • RF-Mount Lens/Full-Frame Format • STM Stepping AF Motor • Center Macro Focus, 1:2 Magnification • Optical Image Stabiliser • Customizable Control Ring • Rounded 7-Blade Diaphragm   Sleek and versatile, the Canon RF 24-105mm f/4-7.1 IS STM is a well-rounded zoom covering wide-angle to short telephoto focal lengths to benefit working in a wide variety of conditions. A variable maximum aperture also helps to maintain an impressively compact profile to suit everyday shooting needs. Complementing the flexible design is a unique Center Macro Focus position, which enables working with close-up subjects at a 1:2 maximum magnification ratio, and an Optical Image Stabiliser also helps to achieve sharp imagery by minimising the appearance of camera shake. Also, an STM motor affords impressively quiet and smooth autofocus performance and full-time manual focus override. Additionally, a configurable Control Ring lets you adjust exposure settings, including ISO, aperture, and exposure compensation, from the lens itself. • Standard zoom covers wide-angle to short-telephoto focal lengths to suit working in a variety of situations. • An Optical Image Stabiliser helps to minimise the appearance of camera shake by up to five stops to better enable working in low-light conditions and with slower shutter speeds. • STM stepping motor offers fast, quiet, smooth, and accurate autofocus performance that is ideal for video recording as well as still shooting. • Specialised Center Macro Focus setting enables working with a 1:2 maximum magnification and a 5.2" minimum focusing distance to suit photographing close-up subjects. • Configurable Control Ring can be used to adjust a variety of exposure settings, including aperture, ISO, and exposure compensation. • Rounded seven-blade diaphragm contributes to a pleasing bokeh quality.  

Canon EOS R50 kit (18-45) Black (with adapter)

Canon EOS R50 kit (18-45) Black (with adapter) Key Features • 24.2MP APS-C CMOS Sensor • DIGIC X Image Processor • UHD 4K 30p Video Recording • Dual Pixel CMOS AF II with 651 Zones • 2.36m-Dot Electronic Viewfinder • 3.0" 1.62m-Dot Vari-Angle Touch screen • 15 fps Electronic Shutter • Movie for Close-Up Demos Mode • Vertical Movie Mode • Multi-Function Shoe, Wi-Fi & Blue tooth   24.2MP APS-C CMOS Sensor and DIGIC X Processing Pairing a powerful 24.2MP APS-C CMOS sensor and DIGIC X image processor, the R50 delivers high resolution imagery with striking and accurate colors. Designed to work in a variety of lighting condition, this camera offers a flexible ISO 100-32000 range that is expandable to ISO 51200 for working in difficult lighting conditions. Using the full width of the sensor, 6K oversampled UHD 4K 30p video recording is supported as is Full HD 1080 120p for slow motion playback. Additionally, 1-hour of video recording is now available. Capable of processing high speed bursts and high-resolution 4K video, the DIGIC X image processor also supports up to 15 fps continuous shooting via its silent electronic shutter. Enhanced Dual Pixel CMOS AF II Featuring 651 high precision autofocus zones, the advanced Dual Pixel CMOS AF II system provides fast and accurate focusing performance. This phase-detection focusing system offers enhanced subject detection and tracking, with the ability to intelligently recognize people, animals, and vehicles while automatically locking onto these subjects and maintaining sharp focus throughout bursts and video captures. 2.36m-Dot EVF and Vari-Angle Touchscreen LCD Providing high-resolution eye-level viewing, the R50 is designed with a bright and clear 2.36m-dot OLED EVF for a pleasing electronic viewfinder experience. Additionally, a large 3.0" 1.62m-dot vari-angle touchscreen provides an intuitive interface for controlling focusing points, navigating menus, and reviewing imagery. This screen also features a vari-angle design for ease-of-use when working from high and low angles. Advanced A+ Assist Experience the joy of creative photography with an expanded array of auto-compatible scenes. Advanced A+ Assist enables great imagery even in difficult settings such as night views and backlit scenarios. Overexposure is automatically reduced so you can capture dynamic scenes or bright portraits, and multiple continuous shots are taken to create beautiful night images or macro photography with a deeper depth of field. Simple and Convenient Vlogging With video recording features such as uncropped UHD 4K movie recording at up to 30 fps, Full-HD High-frame rate movie recording at up to 120 fps, Dual Pixel CMOS AF tracking, and Movie for Close-up Demo Mode, the R50 camera makes vlogging and video content creation simple and convenient. The camera also lets you continuously record video for up to 1 hour, allowing you to set up your video and keep your vlog, podcast, or other video project rolling without worrying about it stopping. Movie for Close-Up Demos Mode Ensure the correct subject is in focus with Movie for Close-Up Demos Mode on the R50 mirrorless camera. This mode quickly switches focus from the on-camera subject to an object that is presented towards the camera's lens, ideal for movies where showing a product to the viewers is necessary such as in makeup demos or cooking videos. Vertical Movie Mode and Aspect Markers Movie rotation information can be set during or after movie recording, allowing videos to be played in vertical composition when viewing on a smartphone. The Aspect Markers function displays visual markers for different aspect ratios that may be desired for posting the same file to various social media sites. This display provides consideration for proper composition for the different deliverable files that can be created when editing. Flexible Connectivity • Wired and wireless connectivity options allow for multiple methods of transferring photos and videos, livestreaming, as well as for remotely controlling the camera. Physically, the camera features a USB-C port, a micro-HDMI port, and a microphone port for video recording. • UVC/UAC compatibility allows the R50 camera to be used as a web camera to stream live video in Full HD without additional computer software. Compatible applications include Zoom, Microsoft Teams, Skype, and similar on-line web conferencing software. • Built-in Bluetooth pairing lets you easily connect the camera to compatible smart devices using the free Canon Camera Connect app. This low-energy wireless connection helps preserve battery life, while providing remote control of the camera. It also sends continuously updated GPS location data from your phone, letting you geotag what you've captured so you know precisely where you captured the photo. • Built-in Wi-Fi connectivity enables quick and seamless wireless functions, such as remote live view, file viewing, and transfer. Using the Canon Camera Connect app, you can also transfer files to your mobile device to browse and share on social media. • Built-in USB-C allows you to connect the camera to a smartphone or computer. All Canon Camera Connect app features that can be used with Wi-Fi are now available when the camera and smartphone are connected via USB, using a compatible cable for your device. Pop-Up Flash and Next-Generation Multi-Function Shoe A built-in pop-up flash provides additional illumination for working in low-light conditions, and the camera's Multi-Function Shoe adds a row of pins at the front of the design to permit greater accessory functionality. This next-generation shoe also provides power to select accessory types that traditionally rely on separate batteries. What's In the Box: • Canon EOS R50 Mirrorless Camera (Black) • Canon LP-E17 Lithium-Ion Battery Pack • Canon LC-E17 Charger for LP-E17 Battery Pack • Canon R-F-5 Camera Cover • Canon EM-200DB Neck Strap Canon RF-S 18-45mm f/4.5-6.3 IS STM Lens: A versatile zoom range in a compact package is the promise of the Canon RF-S 18-45mm f/4.5-6.3 IS STM Lens. Made specifically for Canon's APS-C-format R Series mirrorless line, it delivers a wide-angle to short telephoto equivalent zoom range of 29-72mm. Plus, a retractable design makes it ideal for everyday carry where you want to stuff the camera in a bag. Canon has taken care with the optical design, using two aspherical elements and the Super Spectra Coating to minimize aberrations and reduce ghosting and flare. An Optical Image Stabilizer will help ensure sharp imagery, providing up to 4 stops of shake correction or up to 6 stops of Coordinated IS with a compatible camera body. Additionally, the lead screw-type STM AF system is fast enough to keep up with speedy continuous focus while being smooth and quiet enough to work for video. What's In the Box: • Canon E-49 Lens Cap • Canon Lens Dust Cap RF  

Nikon ЕN-ЕL20а Ваttеrу

Тhе Nіkоn ЕN-ЕL20а Ваttеrу іѕ а 7.2 V rесhаrgеаblе bаttеrу wіth 1110 mАh сарасіtу dеѕіgnеd fоr uѕе wіth thе Nіkоn 1 V3 соmрасt ѕуѕtеm саmеrа.  Compatible with the Nikon P950 Camera  

Nikon Coolpix P950 Bridge Camera

Nikon P950 Camera Тhе СООLРІХ Р950 іѕ аnоthеr grеаt аddіtіоn tо Nіkоn'ѕ lіnе-uр оf brіdgе саmеrаѕ thаt аrе а grеаt соmраnіоn fоr wіldlіfе оr bіrd рhоtоgrарhеrѕ аnd аіrсrаft ѕроttеrѕ. Тhіѕ durаblе, ѕuреrzооm саmеrа оffеrѕ аn іmрrеѕѕіvе 83х орtісаl zооm аnd іѕ а wоrthу uрgrаdе tо thе СООLРІХ Р900, fеаturіng ѕоught-аftеr funсtіоnѕ. Тhеѕе іnсludе а brіght f/2.8 NІККОR lеnѕ; 4К vіdео rесоrdіng; RАW іmаgе сарturе аnd а full-ѕіzе hоt ѕhое fоr mоuntіng оf Nіkоn ассеѕѕоrіеѕ. Тhе СООLРІХ Р950 hаѕ еvеrуthіng уоu nееd tо сарturе dіѕtаnt ѕubјесtѕ wіth оutѕtаndіng dеtаіl; whеthеr іt іѕ а сlоѕе-uр рhоtоgrарh оr а сrуѕtаl-сlеаr 4К vіdео. Nіkоn Сооlріх Р950 Dіgіtаl Саmеrа Кеу Fеаturеѕ: Fаntаѕtіс, rоbuѕt, ѕuреrzооm brіdgе саmеrа іdеаl fоr wіldlіfе оr bіrd рhоtоgrарhеrѕ аnd аіrсrаft ѕроttеrѕ Fеаturеѕ а 16-mеgаріхеl bасklіt СМОЅ Іmаgіng Ѕеnѕоr Grеаt іmаgе quаlіtу thаnkѕ tо thе fаѕt ЕХРЕЕD Іmаgе Рrосеѕѕоr Еnјоу ѕhаkе-frее іmаgеѕ dеlіvеrеd bу thе Duаl Dеtесt Орtісаl Vіbrаtіоn Rеduсtіоn Оffеrѕ а grеаt 83х орtісаl zооm (24 - 2000mm) аѕ wеll аѕ а Dуnаmіс Fіnе Zооm (4000mm) оf 166х Еquірреd wіth аn f/2.8 NІККОR lеnѕ wіth Ѕuреr ЕD glаѕѕ thаt mіnіmіѕеѕ dіѕtоrtіоn аt hіgh zооm 4К Vіdео rесоrdіng сараbіlіtу Ѕuрроrtѕ RАW fіlеѕ (NRW) thаt саn bе ѕаvеd аnd ехроrtеd unсоmрrеѕѕеd tо еdіtіng аnd рrосеѕѕіng ѕоftwаrе Fоr еаѕу ореrаbіlіtу, а brіght, lаrgе (8.1сm 921k-dоt), tіtаblе аnd twіѕtаblе, Vаrі-аnglе LСD mоnіtоr hаѕ bееn іmрlеmеntеd Іnсludеѕ аn ОLЕD Еlесtrоnіс Vіеwfіndеr аnd fасіlіtаtеѕ ѕmооth аnd funсtіоnаl соntrоl WіFі, Вluеtооth аnd UЅВ соnnесtіvіtу Соmеѕ wіth а full-ѕіzе hоt ѕhое fоr mоuntіng оf оthеr Nіkоn ассеѕѕоrіеѕ ѕuсh аѕ mісѕ аnd ѕрееdlіghtѕ ЅnарВrіdgе соmраtіbіlіtу vіа thе ЅnарВrіdgе арр Ехраndеd Nіkоn Сооlріх Р950 Dіgіtаl Саmеrа Кеу Fеаturеѕ: 4К Vіdео Rесоrdіng Еnјоу 4К/UНD 30р mоvіеѕ оr сарturе Full НD (1080р) fіlmѕ аt uр tо 60р frаmе rаtеѕ. Yоu саn mаnuаllу аdјuѕt kеу ехроѕurе ѕеttіngѕ whіlе fіlmіng, whісh іѕ fаntаѕtіс fоr сhаngіng lіght. То ассоmраnу thе vіdеоѕ оf уоur еluѕіvе ѕubјесtѕ, rесоrd іn ѕtеrео ѕоund. Аddіtіоnаllу, thе іn-саmеrа tіmе-lарѕе rесоrdіng іѕ аvаіlаblе. Тhеѕе tіmе-lарѕеѕ саn bе uр tо 10 ѕесоndѕ іn durаtіоn аnd рlау bасk аt 25 frаmеѕ реr ѕесоnd оr 30 frаmеѕ реr ѕесоnd. Fаntаѕtіс Ореrаbіlіtу Fіttеd wіth а сlеаr, ОLЕD еlесtrоnіс vіеwfіndеr, thаt іѕ twісе аѕ lаrgе (1сm 2360k-dоt), thе СООLРІХ Р950 рrоvіdеѕ іtѕ uѕеrѕ wіth ѕmооth аnd еаѕу ореrаtіоn. Тhе vіеwfіndеr аlѕо fеаturеѕ аn еуе-ѕеnѕоr fоr аddіtіоnаl соnvеnіеnсе. Ѕtеаdу hаndlіng іѕ fасіlіtаtеd bу thе lаrgе grір, ѕіdе zооm соntrоl, ѕnар-bасk zооm buttоn аnd thе ѕіdе dіаl uѕеd fоr аutоfосuѕ. Еnјоу tаkіng рісturеѕ аnd rесоrdіng vіdеоѕ соmрlеtеlу hаѕѕlе-frее. ЅnарВrіdgе Соmраtіbіlіtу Тhе СООLРІХ Р950 соmеѕ еquірреd wіth ЅnарВrіdgе соmраtіbіlіtу. То uѕе, dоwnlоаd Nіkоn'ѕ ЅnарВrіdgе арр - аvаіlаblе fоr іОЅ аnd Аndrоіd - оn а соmраtіblе ѕmаrt dеvісе ѕuсh аѕ а ѕmаrtрhоnе. ЅnарВrіdgе аllоwѕ уоu tо ѕуnс уоur рhоtоѕ tо thе аfоrеmеntіоnеd ѕmаrt dеvісе; еvеn whеn trаnѕfеrrіng RАW fіlеѕ. Yоu саn аlѕо uѕе уоur ѕmаrt dеvісе tо соntrоl thе саmеrа rеmоtеlу.  

AGFA DC5500 24MP 8x Zoom Compact Digital Camera

AGFA DC5500 24MP 8x Zoom Compact Digital Camera The AGFAPHOTO DC5500 compact digital camera is easy to use. Its 5 MegaPixels CMOS sensor (24MP max. Interpolation) captures HD photos and videos. Its 2.4" LCD screen allows you to easily frame what you are aiming at and view the pictures stored on the camera. It is equipped with an 8X digital zoom. Photos are stored on an SD memory card up to 32GB (not supplied). Practical, it works with a rechargeable Lithium battery (USB cable provided, AC adapter not supplied).  Features an integrated flash, self-timer (2s, 5s or 10s) and microphone. Real 5MP (with a maximum interpolation of 24MP). HD 1280x720 Video resolution. Smiley face capture, face detection. Model number DC5500-BK. Product specification: • 24 megapixels. • 8x digital zoom. • 2.4in LCD . • Continuous shooting up to 30 frames per second and up to 30 frames per second high speed burst. • Face detection up to 1 faces. • Image stabilisation. • Red eye reduction. Features: • Maximum ISO 400. • Self timer. • Built-in flash. Video: • 720p high definition video capture and playback with sound. Memory card compatibility: SD, SDHC, mMC, (not included). • 32GB . General information: • Size H5.78, W2.46cm. • Weight 89.6g. • Depth 2.46cm (when switched off). • Shockproof up to 1.2m. • Li-Ion (included) . • Colour: black. • Includes USB cable, .  

Flex Clamp Mount with Adjustable Gooseneck

The high-end PC gooseneck has excellent flexibility that makes your camera easy to adjust to any angle and height; the strong spring has powerful clamping force, making it tightly attaches to objects and will not get broken like others when applying too much force. Compatible with Gopro Hero 7 6 5 4 (2018), Session, Fusion, 3+, 3, 2, 1, DJI Osmo Xiaomi Yi Action Camera Accessories

Action Camera Accessories Bundle

A reliable accessories bundle gets your photography journey started right away; Perfect mount for running, driving, climbing, parachute, skiing, surfing, kayaking, biking, motocross, equestrian and other action outdoor sports to capture immersive video and photo footage.

Canon EF 50mm f/1.8 STM

Canon EF 50mm f/1.8 STM An affordable, high quality lens that’s perfect for creative portraits and low-light photos. Blur backgrounds to make your subject stand out, and enjoy smooth near-silent STM focusing when shooting movies. Standard prime 50mm lens is designed for use on full-frame EOS DSLR, however can also be used with APS-C-sized sensors where it will provide an 80mm equivalent focal length.   Fast f/1.8 maximum aperture benefits working in low-light conditions and also enables precise control over the focus plane when working with selective focus techniques. Seven rounded diaphragm blades further contribute to a pleasing out of focus quality with shallow depth of field imagery.   A gear-type STM stepping motor is incorporated into the lens' design to provide quick, smooth, and near silent autofocus performance. Additionally, this focusing mechanism also pairs well with EOS cameras featuring the Move Servo AF mode to enable continuous focusing performance when working in live view.   Full-time manual focus override is available for fine-tuning your focus position for selective focus applications. Optimized lens coatings help to suppress lens flare and ghosting for increased contrast and more color-neutral imagery.   An enhanced exterior design features a metal lens mount for durability as well as a re-located focusing ring to maintain a compact 2.7 x 1.5" form factor.

Canon EF-S 18-200mm f/3.5-5.6 IS

Canon EF-S 18-200mm f/3.5-5.6 IS Compact, lightweight and a wide magnification range - this standard zoom lens features a wide focal length range from normal to telephoto equivalent to 29-320mm in the 35mm format. Image Stabilizer 4 stop Image Stabilizer (IS) extends low light options to previously unavailable levels. Photographers normally shooting handheld at 1/250 sec can switch on IS to obtain a similarly steady and blur-free result with a shutter speed of just 1/15 second. Image blur in low light and at long telephoto lengths is significantly reduced. Superior Image Quality Two UD (Ultra-low Dispersion) elements and several aspherical elements are used to suppress the effects of secondary chromatic aberrations, to obtain crisp, sharp, high-contrast images without fringing throughout the zoom range. Super Spectra Coatings Optimized Super Spectra lens coatings and lens element shaping, suppress flare and ghosting. Coatings also help achieve true color balance and increase contrast for vivid hi-fidelity images. Zoom Ring Lock Lever The zoom ring can be locked in place at its widest focal length in order to prevent the lens from physically extending while not in use.

HAMA SDHC UHS-1 Class 1 C10 - (533x / 80MB/s)

SecureDigital Extended Capacity Card (SDXC); complies with SD Standard 3.01: Particularly suitable for Cinema, 4 k Video Real-time Full HD Video and 3D recordings 8GB Sold in Pack of 3 All other sizes sold in singles Allows for perfect, high-resolution 4 k Video recording with a guaranteed Minimum writing speed: up to 30 MB / sec For Real-time / Broadcast recordings, enables rapid and direct data transfer between the memory card and a UHS-I capable terminal device. Box contents: Class 3 Hama SDXC UHS-I Memory Card - 256 GB Automatic write protection (against accidental deletion, with label for brief notes, only suitable for terminal equipment with SDXC slot, e.g. Digital cameras, camcorders (not downwards compatible with SDHC slots)

Viewsonic PA503X Projector

The ViewSonic PA503X price-performance projector features 3,600 lumens, native XGA 1024 x 768 resolution, and intuitive, user-friendly design. Exclusive SuperColor technology offers a wide color gamut for beautiful image production in nearly any environment. The PA503X also features extensive connectivity including HDMI, 2 x VGA, VGA out, Composite Video and audio in/out. An energy-saving SuperEco feature reduces power consumption and extends the lamp life by up to 15,000 hours. With advanced audio-visual features, flexible connectivity options, and an affordable price, the PA503X is ideal for use in education and small business environments. SuperColor: Amazing Color Accuracy 3,600 Lumen Brightness Energy Efficient SuperEco Reduced Input Latency.

Canon LP-E17 Camera Battery

Rechargeable lithium-ion battery pack for select EOS DSLRs. Charge with the LC-E17 battery charger. Suitable for:Canon EOS M3, EOS 760D