The GF 250mm F4 R LM OIS WR FUJIFILM is the longest lens in the GF lenses range and offers a fantastic image quality and wide use of use. It is a very well done pro-oriented lens with truly interesting optical characteristics. It is a 197.5mm telephoto lens with 16 elements lens in 10 groups, including a super element and a pair of elements ed. It has a linear automatic focus system with internal focus. For the focus there are pre-set buttons. The tripod neck is removable, the structure is resistant to atmospheric agents, water, dust and frost and is compatible with the new telephoto lens-converter 1.4x. The filter wire is 82mm, the optical stabilization of the image (OIS) is evaluated for five correction stops. Retail is sold for about 2900 euros. The 4 preset buttons for focus can also be assigned to manage the AF-L and AF features. In addition to the pre -selection button, there is also a switch on fire and an OIS switch. The Fujifilm GF 250mm F4 R LM OIS WR has a rubber -fired ring of the width of about 2 inches. Overall, the lens is well built, rather large, 4.25 x 8.01 inches and weighs about 1kg and a half, but it is excellently balanced. The 16 lenses in 10 groups mean that there is a lot of glass inside, but the super element and the two and guarantee excellent optical quality and reduce chromatic aberrations. The sharpness of the Fujifilm GF 250mm F4 R LM OIS WR is almost total, exceptional in the center, while it loses imperceptiblely towards the external edges, even when displaying 100%images.