Can someone explain the meaning of "orthopanchromatic" (Acros)?

Red

D
Red

  • 2
  • 1
  • 57
The Big Babinski

A
The Big Babinski

  • 2
  • 5
  • 82
Memoriam.

A
Memoriam.

  • 6
  • 6
  • 152
Self Portrait

D
Self Portrait

  • 3
  • 1
  • 69
Momiji-Silhouette

A
Momiji-Silhouette

  • 2
  • 3
  • 78

Recent Classifieds

Forum statistics

Threads
198,003
Messages
2,768,058
Members
99,523
Latest member
Seeker0221
Recent bookmarks
0

NedL

Subscriber
Joined
Aug 23, 2012
Messages
3,374
Location
Sonoma County, California
Format
Multi Format
Someone probably already said this in this long thread, but "ortho" is a prefix from Greek and one of it's meanings is "corrected".
So the word means something like "corrected panchromatic", meaning corrected to mimic human perception of tone.

The original use of "orthochromatic" probably came from the same idea: making blue-only sensitive film more "visually correct" by adding green sensitivity.

I don't think there's any problem, really.
 

DREW WILEY

Member
Joined
Jul 14, 2011
Messages
13,803
Format
8x10 Format
Fuji is known for that kind of ambiguity, even with printing papers. But the correct answer is always somewhere officially, usually in the tech sheets, but sometimes you have to go further. Customer Service is basically tied to marketing, and has given me wrong answers several times. That's a common problem with a number of kinds of mfg, not just photo products.
 
Photrio.com contains affiliate links to products. We may receive a commission for purchases made through these links.
To read our full affiliate disclosure statement please click Here.

PHOTRIO PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Ilford ADOX Freestyle Photographic Stearman Press Weldon Color Lab Blue Moon Camera & Machine
Top Bottom