Meyer Optik Trioplan 100mm F2.8 Old Lens. Exakta mount. This mount is ideal for conversion to mirrorless cameras due to the abundance and affordability of conversion mounts. Released in 1936. This old lens became famous on Instagram for its ability to capture bubble bokeh and soap bubble bokeh with emphasized outlines. This "Soap bubble bokeh" is produced by a triplet configuration of three elements. While other lenses also offer this effect, none can create bokeh with such distinct, outlined shapes as this lens. Consequently, the price has soared in recent years, making it difficult to find a beautiful example for less than tens of thousands of yen. This lens is a later model, designed to make it easier to operate the camera, such as aperture-priority shooting, by reducing the number of aperture blades. However, the resulting hexagonal ghosts and bokeh when slightly stopped down are considered unique in modern times. I have prepared some sample photos taken with this set. This is a Trioplan in very good condition as a black paint zebra color. It can produce very beautiful bubble bokeh. I took photos of fireworks at the end of summer, and I thought that if I showed this as a video sample, people would be moved. I felt it would be even more interesting to use in a video. The optics are very good, with no mold or haze. I took a photo of the sun with the aperture stopped down, and the six-pointed sunstars are so beautiful. This lens, which has few elements, is free from the strange ghosts that make it difficult to handle. The exterior of the lens is almost flawless, with only slight scratches on the easily scratched rings. It's very clean. It's rare to find a lens this clean in zebra color. The original model with exposed aluminum is also cool, but this model is recommended for practical use. If you are looking for a good one, please consider it. Condition: Very clean for a zebra model! Beautiful condition. Exterior: No noticeable scratches, only slight scratches on the focusing ring. Optics: Clean with no mold or haze. Operation: Confirmed with actual shooting on α7. Accessories: Front and rear caps, genuine hood. Stored in a dehumidified storage. #SoapBubbleBokeh #BubbleBokeh #Instagrammable 4594 *Evaluation is subjective. Please understand that this is a used item. *Returns are accepted, so please feel at ease! (Only for items not discounted, you are responsible for shipping costs. Please consult us before leaving a review.)