How much do you know about photography?

You're using a Marchioni Tiltall tripod as a clothes rack?

Is that the Army’s new transgender uniform?

ALS and filter on the lens?

Infrared filter?

I've never seen a bougainvillea that dense

Not enough cyan & yellow.

Filters are off.

All the "red" should be shades of green.

quote:

Originally posted by Ripley:
You're using a Marchioni Tiltall tripod as a clothes rack?

Close. It’s virtually identical to another tripod I have that was marketed as the Tiltall manufactured by UNIPHOT. The one in the photo was purchased in the late 1960s and is branded the Brilliant Professional.

But although that’s a good eye, it’s not the question. One of you is warm, but no filters were involved. Note that not everything is in shades of red, including the tree trunk at the left, and especially not the coat on the left.

There was no post exposure manipulation of the image either.

Print a positive on negative paper?

quote:

Originally posted by Snapping Twig:
Print a positive on negative paper?

No, no manipulation like that.

Added: The above image was originally a positive transparency (slide) that was converted to a positive straight print. The original exposure was in 1987 or 1988.

Taken during a solar eclipse event? WAG BTW.

Was there ever a film manufactured for florescent color temperature?

The camera seems color blind.

Infrared film.

flashguy

quote:

Originally posted by flashguy:
Infrared film.

flashguy

Yes. Agreed.

quote:

Originally posted by flashguy:
Infrared film.

flashguy

Yes, correct.
At one time Kodak produced two types of film that was sensitive to infrared light, black and white (monochrome), and color.

The B/W was much more commonly used and produced distinctive results. Because most vegetation reflects IR very strongly, B/W infrared photos of grass, leaves, etc., showed foliage as very light colored. On the other hand, little IR comes from the sky, and therefore it would be very dark.

The color IR film was reportedly developed as a way of detecting artificial camouflage. As with the OD field jacket in the photo, something that was just painted green wouldn’t necessarily reflect IR light in the same way as vegetation. Although I can’t explain all the technical details of color IR film, it was designed so that the IR light it was exposed to showed up as red in the photograph. That was an artificial rendering of the infrared light, but necessary because humans can’t see IR light directly.

At one time no effort was made to ensure that military uniforms reflected IR light in the same way as vegetation, and an example is the old field jacket on the left that dated from the mid-1960s. Later, however, IR reflectance became an issue, and the first “BDU” uniforms corrected the problem. That’s why the camouflage pattern shirt shows up in the photo in shades of red.

AFAIK, Kodak color IR film has long been discontinued, but at least one manufacturer still reportedly makes a version.

There are many examples of B/W IR photos on the Internet, but here is one of mine from 50+ years ago.



And as another bit of IR photography trivia, camera lenses don’t focus infrared light in the same plane as visible light. Many film camera lenses of yesteryear therefore bore a small red mark in the distance scale on the lens to indicate how the setting should be adjusted to focus at infinity when using black and white IR film.

Fascinating.
I recall experimenting with B&W infrared film when I was in HS.
Was not aware of color infrared.

Learn new things here daily.

People are taking their older digital camera bodies and having the sensor converted to IR.

This gives a dedicated camera body for IR photos, and the results are really amazing.

Love your shot,
Dave

quote:

Originally posted by lizardman_u:
People are taking their older digital camera bodies and having the sensor converted to IR.

Yes, I had heard of that and was giving it some consideration myself.

Interesting, I thought IR reflectivity was only worried about recently with the proliferation of standard issue night vision devices. Were IR film cameras issued gear? I imagine there would be one mounted on observation aircraft.