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 gained fame 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 as clearly defined as this lens. Consequently, the price has soared in recent years, making it difficult to find a beautiful condition lens for under ten thousand yen. This lens is a later model, designed to reduce the number of aperture blades to facilitate aperture-priority shooting and other camera-side operations. However, the resulting hexagonal ghosts and bokeh when slightly stopped down are considered unique in modern times. The zebra design is also characteristic of this era. Sample photos taken with this lens are provided. The bubble bokeh, as if drawn with a ballpoint pen, is a unique feature. Even considering it as a standard telephoto lens from the old lens era, it's attractive, with light blooming, soft resolution, and gentle color reproduction common to lenses of this time. Especially when photographing people, it can smooth the skin and create a scene reminiscent of a story, as shown in the examples. There are cleaning marks on the front and rear elements, and some dust and debris are visible, but there is no noticeable mold or haze, and the optics are good. The exterior has scratches. Older cameras had a function where you would press a lever to stop down the aperture only during shooting. The automatic aperture lever does not work, so you will always be shooting at the actual aperture, meaning the aperture will change as you turn the aperture ring. For use with a converted mount, it's actually more convenient without this function, but this is a point to note. Offered at a bargain price, so please consider it. Condition: Sale with a defect! Recommended for use with mirrorless cameras. Appearance: Scratches, please check the photos. Optics: No mold or haze, cleaning marks, and some dust and debris. Operation: Tested and confirmed with α7. Accessories: Front and rear caps. Stored in a dehumidified storage. #SoapBubbleBokeh #BubbleBokeh 2504 ※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 will only be responsible for shipping costs, please consult before leaving feedback)