The Sigma 530ST DG ST E-TTL Shoe Mount Flash is Sigma's economical full-TTL flash, and has been updated with improved coverage range and a stronger power output. It features a powerful Guide Number of 174'/53 m at 105mm, and covers a focal range from 24mm to 105mm. This flash provides full TTL operation with Digital SLR cameras, including full E-TTL II operation with applicable cameras

The Sigma 530ST DG ST i-TTL Shoe Mount Flash is Sigma's economical full-TTL flash, and has been updated with improved coverage range and a stronger power output. It features a powerful Guide Number of 174'/53 m at 105mm, and covers a focal range from 24mm to 105mm. This flash provides full TTL operation with digital SLR cameras, including full i-TTL operation with applicable cameras

The Sigma 530ST DG ST TTL Shoe Mount Flash is Sigma's economical full-TTL flash, and has been updated with improved coverage range and a stronger power output. It features a powerful Guide Number of 174'/53 m at 105mm, and covers a focal range from 24mm to 105mm. This flash provides full TTL operation with digital SLR cameras, including full ADI operation with applicable cameras.

The Sigma 530ST DG ST P-TTL Shoe Mount Flash is Sigma's economical full-TTL flash, and has been updated with improved coverage range and a stronger power output. It features a powerful Guide Number of 174'/53 m at 105mm, and covers a focal range from 24mm to 105mm. This flash provides full TTL operation with digital SLR cameras, including full P-TTL operation with applicable cameras

The 220EX is a small EOS system flash with the E-TTL capabilities supported by all of the current Canon SLR cameras, both digital & film based.

Guide Number of 61 Auto Zoom Coverage for 24-105mm TTL Operation W/Nikon DSLRs Bounce, Tilt, and Swivel Head Manual Setting Available Takes 4x AA Batteries

For amateur who are not versed in the technical side of lighting or more advanced users who want a compact yet powerful hotshoe flash, the Canon Speedlite 270EX is versatile and portable without being complicated.

Canon's ultra-lightweight Speedlite 270EX II is a compact, high-performance flash unit designed for EOS DSLR users. Developed for quick, simple flash shooting, when used with select Canon EOS DSLR cameras that have a master function, the Speedlite 270EX II can be used as a wireless slave flash. The 270EX II can also be used with other compact digital camera models equipped with a dedicated flash shoe mount. The user-friendly 270EX II's Tele/Wide function allows adjustment of illumination angle and guide number to match shooting conditions. Manual power adjustment from 1/1 to 1/64 is also available. High-Performance Flash Unit Ultra Compact & Ultra Lightweight Wireless Use W/EOS DSLR Master Function 2-Second Flash Delay Possible Weighs Just 5.5 oz/155 g Normal Guide No. (28mm): 72' @ 100 ISO Tele Guide No. (50mm): 89' @ 100 ISO

The EF-530 Super DG is Sigma's flagship TTL flash, and has been updated with improved coverage range and a stronger power output. It features a powerful Guide Number of 174'/53 m at 105mm, and covers a focal range from 24mm to 105mm. The EF-530 Super DG is also fully compatible with the latest digital SLR cameras that use a pre-flash, and supports full E-TTL II operation (where supported by camera).

The EF-530 Super DG is Sigma's flagship TTL flash, and has been updated with improved coverage range and a stronger power output. It features a powerful Guide Number of 174'/53 m at 105mm, and covers a focal range from 24mm to 105mm. The EF-530 Super DG is also fully compatible with the latest digital SLR cameras that use a pre-flash, and supports full i-TTL operation (where supported by camera).

The EF-530 Super DG is Sigma's flagship TTL flash, and has been updated with improved coverage range and a stronger power output. It features a powerful Guide Number of 174'/53 m at 105mm, and covers a focal range from 24mm to 105mm. The EF-530 Super DG is also fully compatible with the latest digital SLR cameras that use a pre-flash, and supports full TTL operation, including full ADI operation with applicable cameras.

The EF-530 Super DG is Sigma's flagship TTL flash, and has been updated with improved coverage range and a stronger power output. It features a powerful Guide Number of 174'/53 m at 105mm, and covers a focal range from 24mm to 105mm. The EF-530 Super DG is also fully compatible with the latest digital SLR cameras that use a pre-flash, and supports full P-TTL operation (where supported by camera).

The Canon Speedlite 430EX II Flash is Canon's mid-range shoe mount flash, yet it offers many of the same advanced features as its bigger brother, the 580EX II. It is designed to fully support the entire range of Canon digital SLR and G-series cameras.

Canon's Speedlite 320EX is a versatile flash that includes an LED light on the front that can be used as a modeling light, an AF assist beam during Live View shooting, or to light up nearby subjects in low light for video recording. It will provide up to 4 hours of continuous lighting with fully-charged AA batteries. The 320EX is E-TTL- and E-TTL II-compatible using Type-A EOS cameras, and it has a guide number of 78.7'/24m @100 ISO at 24mm

The SB-700 Speedlight Shoe Mount Flash from Nikon is an on-camera flash, designed for use with Nikon DSLR cameras that use the i-TTL metering system. It is compatible with DX and FX sensors, and its power zoom head covers a 24-120mm range when used with an FX camera. FX/DX Format Recognition 24-120mm Coverage (FX) On-Camera & Wireless Operation 2.5 Second Recycling Time (NiMH) 3 Second Recycling Time (Alkaline) i-TTL Operation Thermal Cut-Out Detection Filter Detection AF-Assist Illuminator Standard/Center-Weight/Even Illumination

The Sigma EM-140 DG Ring Flash is ideal for photographing subjects in fine detail - close-up photography - and is extremely effective for scientific and medical applications. Dual flash tubes can fire simultaneously or separately. Using only one flashtube creates modeling, which can give a three-dimensional feeling to the subject. The Modeling Flash function makes it possible to check for reflections and shadows before actually taking the flash picture.

The Sigma EM-140 DG Ring Flash is ideal for photographing subjects in fine detail - close-up photography - and is extremely effective for scientific and medical applications. Dual flash tubes can fire simultaneously or separately. Using only one flashtube creates modeling, which can give a three-dimensional feeling to the subject. The Modeling Flash function makes it possible to check for reflections and shadows before actually taking the flash picture.

The Sigma EM-140 DG Ring Flash is ideal for photographing subjects in fine detail - close-up photography - and is extremely effective for scientific and medical applications. Dual flash tubes can fire simultaneously or separately. Using only one flashtube creates modeling, which can give a three-dimensional feeling to the subject. The Modeling Flash function makes it possible to check for reflections and shadows before actually taking the flash picture.

Nikon's MB-D12 Multi Power Battery Pack for D800 Camera is a grip that attaches to the Nikon D800 camera. It provides extended battery power with the batteries (not included) in the grip, plus giving you a better, more secure and stable hold on the camera, making it easier to handhold at lower shutter speeds. The battery pack is supplied with two battery trays--one that holds an EN-EL15 rechargeable battery, and one that holds 8 AA batteries. A holding case, contact cap and user's manual are also included. This power pack accepts 1.5V LR-6 (Alkaline), Lithium (FR6), Ni-MH (HR6) or Ni-Mn (ZR6) batteries.

The SB-910 is Nikon\\\'s most sophisticated and powerful Creative Lighting System portable Speedlight designed for use on camera as well as for complete wireless control in the studio or on location. Engineered for FX and DX-format D-SLRs and COOLPIX P7000 Series cameras, the SB-910 offers unparalleled lighting performance in the field and in the studio. Featuring Nikon\\\'s versatile i-TTL (intelligent through-the-lens) metering for on camera or wireless flash control, the SB-910 can operate as a hot shoe mounted Speedlight, remote unit or wireless Commander. Features Operates as a hot shoe mounted Speedlight, remote unit or wireless Commander Nikon\\\'s i-TTL flash control which enables Nikon Speedlights to share critical exposure info