Canon MR-14EX, 15.2 oz (430 g), Macro flash Canon MR-14EX. Type: Macro flash, Product color: Black, Camera brands compatibility: Canon. Battery type: AA. Weight: 15.2 oz (430 g), Dimensions (WxDxH): 2.91 x 3.83 x 4.96" (74 x 97.4 x 125.9 mm) https://www.the-digital-picture.com/Reviews/Canon-Macro-Ring-Lite-MR-14EX-Flash-Review.aspx I have the Canon Macro Ring Lite MR-14EX Flash and hope to one day bring you a review. ... https://www.photo.net/equipment/canon/macro-flash/ Canon makes two similar macro flash systems, the MR-14EX Ring Lite and MT-24EX Twin Flash. Both are intended to surround the front of a standard Canon macro lens, e.g., the Canon EF 100mm f/2.8 Macro USM, $640 (review), which is the lens used for all o... The MR-14EX Ring Lite is the best choice if you need a consistent series of shadowless photos of small objects, especially if the photographers are going to be inexperienced. The MT-24EX is a better choice for creative projects. Where to BuyYou can get... http://www.whatdigitalcamera.com/reviews/review/canon-mr-14ex Canon’s ring flash has a guide number (GN) of 14m @ISO 100, and either tube can be adjusted down to 1/8 of its power, which is useful for creating shadows or modelling on the subject. A pair of lights at the top and bottom of the unit o https://www.shutterbug.com/content/canon-mr-14ex-macro-ring-litebrsimple-small-product-lighting