The 24mm image circle was a great idea for science, but a bad idea for photography because slide mounts and enlarger film holders cut off the tops and bottoms of the circles. This 8mm f/8 was Nikon's first 35mm-format fisheye, with a 24mm diameter image circle. If you're queasy about trying to hold-up your mirror as you attempt to jam this lens on your camera (DSLR mirrors aren't just a mirror they are a complex network of many mirrors moving in every direction), you might also want to try the "Mirror Lock-Up for Cleaning" menu option. Likewise with the Nikon F, locking up the mirror is a multi-step affair requiring you to waste a frame of film. With the Nikon F, you need to remove any Photomic finder since it will interfere. If you follow Nikon's directions, it only works properly on cameras which allow full-time mirror lockup, which means the F, F2, F3, F4, F5 and some of the earliest pre-AI amateur Nikons, like the Nikkormat FT, from the early 1970s. Do this, use Live View, and you're good to go! This is one of the very few Nikon lenses which simply won't work properly on any digital camera unless you rig up some sort of complex optical relay system beyond the scope of this website - or if you dare pull-up the mirror with your finger and jam in the lens. Sadly the mention is on the list of incompatible lenses! It's mentioned on page 374 of my D800 USA user's manual. The Pro-Optic 8mm f/3.5 is designed for DX cameras it's not a circular FX fisheye as is this 8mm f/8.Įven as a collectors' item, Nikon hasn't forgotten it. This 8mm is more of collectors' item today, since you can buy a brand-new Pro-Optic 8mm f/3.5 for less money, which is far easier to use and which has far better optical performance. The finder, if you use it with a 35mm camera, is very sharp. The finder isn't needed or wanted with Live View. The finder does not slip into a standard hot shoe, or mount directly on any other Nikons!ġ60 degree viewfinder and its own screw-in midget cap. You have to use a special finder that comes with the lens and slip it on the weird accessory shoe of your Nikon F or F2. Without Live View, you can't look through any camera to see what you're photographing. It was, and still is, a royal pain to use on the 35mm cameras for which it was designed. With Live View DSLRs - and if you're not afraid of lifting your DSLR's mirror with your dirty little fingers while trying to attach this thing - it works far better on today's DSLRs than it ever did when new! Even wide-open at f/8, this small 8mm fisheye is always in focus from a few inches to infinity. This is much easier to use than the 8mm f/2.8 which adds the annoyance of a focus control which gets knocked off-focus more often than you'd think. If you don't lock-up your camera's mirror, you'll smash it attempting to mount this lens.įocus is easy: since everything is always in focus with an 8mm lens at f/8, focus is fixed. This 8mm's primitive design pokes deeply into your camera, so it requires locking-up the mirror to mount it. Used on DX, the image reaches from left to right along the center line, but with black triangles in each corner and the top and bottom of the circle cut off. As you see above, since 24mm is the nominal maximum vertical size of the film or sensor, you often lost the top or bottom edge, so newer models reduced this to 23mm. This 24mm diameter image circle is the largest of any Nikon circular fisheye. Ryan in car, Dada's legs at bottom, about 2" from car.) bigger (cropped to square). Its image is a 24mm-diameter circle filling the middle of the FX frame, surrounded by black: The sample reviewed here in 2012 was made in 1964. This 8mm f/8 is Nikon's earliest 35mm-format 180-degree circular fisheye lens.
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