Canon 135mm External Viewfinder [Overview] This is a 135mm external viewfinder made by Canon. It can be used with most rangefinder cameras by attaching it to the accessory shoe. It has a lever-type parallax correction mechanism, allowing for framing correction according to the distance to the subject. It also matches Canon rangefinders and Leica L-mount cameras of the time. [Condition] Appearance: ・Slight scratches and minor blemishes, overall in very clean condition. ・Engravings and the luster of the black anodized finish are also good. Optics: ・The inside of the viewfinder is clear, with no mold, fogging, scratches, or balsam separation. ・High visibility, allowing for comfortable composition confirmation. Operation: ・Smooth operation of the distance correction lever. ・Secure shoe attachment. [Comments] Barnack cameras basically only have a 50mm viewfinder, so a dedicated viewfinder is required to use other focal lengths. That's a bit of a hassle, but also part of the fun. The viewfinder itself becomes a collector's item, and enjoying the "viewing quality" and differences in construction is unique to rangefinders. This item, though small, has a solid feel with a good weight, and the small parallax correction lever is also precisely made. The actual viewing quality is excellent, and the viewfinder's view, often described as "more beautiful than the naked eye," certainly applies to this item. The optics are also very clear. Also, because it is a 1:1 viewfinder, you can use it with both eyes open. This is another unique pleasure of rangefinders that you don't get with SLRs. Canon later shifted to SLRs, but this item has a high level of completion befitting the final form of an external viewfinder, providing the unique enjoyment of rangefinders. ~ Leica Treasure Market ~