Here are 30 sample images taken with a "Beta" pre-production version of the new Pentax 645Z medium-format DSLR and the 55mm f/2.8 and 25mm f/4 lenses. The Pentax 645Z is a medium format camera that handles very much like a regular DSLR. The 645Z features a 51.4MP CMOS sensor, ISO range from 100-204,800, tilting 3.2-inch 1037k-dot screen and even Full HD 1080 60i/30p/24p video. At Ricoh Imaging's request, the sample images have been resized to 75% of their full 51 megapixel resolution.

Ahead of our full review, here are 33 full-size sample images and a 1080p movie taken with the new Olympus SP-100EE compact camera. The Olympus SP-100EE is a 16 megapixel bridge compact camera with a 50x zoom lens, the unique Dot Sight Framing Assist feature, an electronic viewfinder and Full HD 60p movies.

Ahead of our full review, here are 36 full-size sample images and a 1080p movie taken with the new Olympus SH-1 compact camera. The Olympus SH-1 is a 16 megapixel premium compact camera with a 25-600mm lens and 5-axis optical image stabilisation.

Ahead of our full review, here is a gallery of sample images taken with the Carl Zeiss Touit 50mm f/2.8 Macro lens, mounted on the Fujifilm X-T1 camera. The new Zeiss Touit 2.8/50M is a macro lens with a maximum reproduction ratio of 1:1. Designed for compact system cameras with APS-C sized sensors, the Zeiss Touit 2.8/50M is equivalent to a 75mm lens in a 35mm system. All of the samples are straight out of the camera JPEGs with no additional post-processing or sharpening.

Ahead of our full review, here are 60 sample images and a 1080p movie taken with the Leica C compact camera, including the full ISO range of 80-12,800. The Leica C is a premium compact camera with a 12 megapixel sensor, built-in viewfinder, 28-200mm lens, Wi-Fi and NFC connectivity, 10fps burst shooting, and RAW format support.

Ahead of our full review, here are full-size sample images and a 1080p movie taken with the new Canon IXUS 265 HS compact camera, including the full ISO range. The Canon IXUS 265 HS features a 12x zoom lens, 16-megapixel back-illuminated CMOS sensor, 1080p movies at 30fps with stereo sound, and integrated Wi-Fi and NFC connectivity.

Ahead of our full review, here are full-size sample images and a 1080p movie taken with the new Canon PowerShot SX700 HS compact camera, including the full ISO range. The Canon PowerShot SX700 HS features a 30x zoom lens, 16-megapixel CMOS sensor, Full HD 60p movies with stereo sound, and integrated Wi-Fi and NFC connectivity.

Ahead of our full review, here are 89 full-size sample images and a 1080p movie taken with a full production version of the new Leica T compact system camera and the Vario-Elmar-T 18-56 mm f/3.5–5.6 lens, including the entire ISO range of 100-12500. The Leica T is a premium mirrorless camera with a 16 megapixel sensor and a massive touchscreen display.

Ahead of our full review, here are 64 full-size sample images taken with the Sigma 50mm F1.4 DG HSM A lens mounted on a Canon EOS 5D Mark III body. The Sigma 50mm F1.4 DG HSM A is a fast standard prime lens for full-frame DSLR cameras.

We spent some time yesterday shooting with the brand new Sony A77 II at a press event held in the picturesque setting of Somerset House, London. Here are 90 sample images taken with the fast-focusing Sony A77 II interchangeable lens camera and Sony DT 16-50mm F2.8 SSM lens, including the full ISO range from 50-51200.

Ahead of our full review, here are 50 sample images taken with the Sony Cyber-shot DSC-WX350 compact camera. The Sony Cyber-shot DSC-WX350 is a new travel-zoom compact camera with a 20x lens and an 18.2 megapixel sensor.

Ahead of our full review, here are 50 sample images taken with the Sony Cyber-shot DSC-WX220 compact camera. The Sony Cyber-shot DSC-WX220 is a new compact camera with a 10x zoom lens and a 20 megapixel sensor.

Ahead of our full review, here are some sample images taken with the new Samsung WB2200F compact camera, including the complete ISO range from 100-6400. The Samsung WB2200F bridge camera has a 1/2.3-type 16-megapixel CMOS image sensor and a massive 60x optical zoom.

Ahead of our full review, here are some sample images taken with the new Samsung WB1100F compact camera, including the complete ISO range from 80-3200. The Samsung WB1100F bridge camera has a 1/2.3-type 16-megapixel CCD imager and a 35x optical zoom.

Ahead of our full review, here are some sample images taken with the new Samsung NX Mini compact system camera. The super-slim Samsung NX Mini has a 1"-type 20.5-megapixel BSI CMOS sensor, 3-inch tiltable touchscreen, 6fps continuous shooting mode and a maximum shutter speed of 1/16000th second. UPDATE 29/04/2014: We've now added samples for the complete ISO range from 160-12,800.

Here are full-size sample images taken with the new Canon PowerShot G1 X Mk II compact camera at an event held by Canon UK to showcase the G1 X Mk II's low-light capabilities. The Canon PowerShot G1 X Mark II is a premium compact camera with a large sensor and fast f/2 zoom lens. UPDATE 25/04/2014: We've now added the full ISO range from 100-12,800. UPDATE 28/04/2014: We've now added another 45 sample images.

Ahead of our full review, here are 80 full-size sample images taken with a production version of the new Panasonic GH4 compact system camera and the 14-140mm kit lens, including the entire ISO range of 100-25600. The Panasonic DMC-GH4 is a new compact system camera that features 4K video shooting. The GH4 also offers a 16.05-megapixel Live MOS sensor, fast and accurate Auto Focus (AF) system (0.07 seconds), splashproof and dustproof magnesium alloy full die cast body, 12fps burst shooting, 1/8000th top shutter speed, and Wi-Fi and NFC connectivity. UPDATE 23/04/2014: We've now added more sample images and a short 4K video clip to whet your appetite...

Ahead of our full review, here are 37 sample images taken with the new TCL-X100 tele-conversion lens for the Fujifilm X100/S cameras, including the full aperture range. The TCL-X100 converts the 35mm lens of the Fujifilm X100/S into a classic 50mm focal length whilst maintaining the maximum f/2 aperture.

Ahead of our full review, here are 42 sample images taken with the Olympus M.ZUIKO DIGITAL 25mm f/1.8 lens, mounted on an OM-D E-M1 body. The Olympus M.ZUIKO DIGITAL 25mm f/1.8 is a fast 50mm equivalent lens for the Micro Four thirds system.

Ahead of our full review, here are 32 sample images taken with the Olympus M.ZUIKO Digital ED 12-40mm f/2.8 PRO lens, mounted on an OM-D E-M1 body. The Olympus M.ZUIKO Digital ED 12-40mm f/2.8 PRO is a professional standard zoom lens with a constant maximum aperture of f/2.8 throughout the focal range which is equivalent to 24‑80mm on a 35mm camera.