This image has an unsolved mystery. There seems to be some sort of electrical phenomena happening above the high voltage transmission lines. The real mystery is that they are visible darker than background. It means what ever it is, it is not reflecting IR. If they were white they could be electrical discharge on film surface while spooling the film for developing. They are also visible in only that one frame. All other frames on the film does’t show anything like this.

If you have any clue about what is happening please contact me.

These images are taken with Hasselblad 500M on Rollei IR400 film.

The first image is taken with same film but without IR filter. A Hoya R72 IR filter or similar is needed to achieve typical infrared signature look which is the white blooming foliage.