Panagor — budget manual-focus 135mm f/2.8 telephoto prime sold across multiple 1970s SLR mounts
Panagor also offered a 135mm f/2.8 short telephoto within its 1970s catalogue-lens range, one of the most common focal length and aperture combinations sold by independent Japanese lens houses to fit contemporary 35mm SLR systems. It sat below Panagor's macro lenses in the line-up.
The lens follows the typical specification for a period 135mm f/2.8 catalogue lens: automatic diaphragm operation, a metal focus barrel with a distance and depth-of-field scale, and coated optics of a design shared across mount variants from the same manufacturing source. Element count, filter thread and weight are not verifiable from a confirmed source and are omitted.
Rendering is typical of the class: usable centre sharpness wide open with softer edges, a gentle roll-off to background blur, and warmer colour from vintage lens coatings compared with modern optics. Contrast improves once stopped down to f/5.6 or smaller.
On the used market this is an inexpensive way into manual-focus 135mm telephotos, often bought for mirrorless adaptation. Confirm the exact mount fitted, check the aperture ring and diaphragm move freely, and inspect the glass for haze or separation.