Why do so few people take part in the member organized functions?

Sciuridae

A
Sciuridae

  • 1
  • 2
  • 48
Takatoriyama

D
Takatoriyama

  • 5
  • 2
  • 93
Tree and reflection

H
Tree and reflection

  • 2
  • 0
  • 74
CK341

A
CK341

  • 4
  • 1
  • 83
Plum, Sun, Shade.jpeg

A
Plum, Sun, Shade.jpeg

  • sly
  • May 8, 2025
  • 3
  • 0
  • 119

Recent Classifieds

Forum statistics

Threads
197,627
Messages
2,762,137
Members
99,425
Latest member
dcy
Recent bookmarks
1

Andrew O'Neill

Moderator
Moderator
Joined
Jan 16, 2004
Messages
11,780
Location
Coquitlam,BC Canada
Format
Multi Format
are cyanotypes allowed? page before this suggested optical prints only. im confused/

I never gave it much thought. The negative is optical, but the print is via contact. Should be okay, though.
 
OP
OP
Don_ih

Don_ih

Member
Joined
Jan 24, 2021
Messages
7,401
Location
Ontario
Format
35mm RF

MattKing

Moderator
Moderator
Joined
Apr 24, 2005
Messages
52,028
Location
Delta, BC Canada
Format
Medium Format
are cyanotypes allowed? page before this suggested optical prints only. im confused/
In the Postcard Exchange - Absolutely. Cyanotypes use UV light, which is quite "optical".
Two types are allowed:
1) lumen print type cyanotypes. This is the exception to requiring that the image originate on film, although you could consider the cyanotype itself to be the "film"; and
2) images that started out on film, and are printed from there.
Most would choose to directly print a film negative by making a contact cyanotype from it, but if you wanted to scan the film negative and then make a digital negative from the file, there is nothing wrong with that. That would make working from a 35mm negative - or for that matter, an 8"x10" negative - practical.
I'll leave to you why you would want to do that for postcards!
 

Andrew O'Neill

Moderator
Moderator
Joined
Jan 16, 2004
Messages
11,780
Location
Coquitlam,BC Canada
Format
Multi Format
In the Postcard Exchange - Absolutely. Cyanotypes use UV light, which is quite "optical".
Two types are allowed:
1) lumen print type cyanotypes. This is the exception to requiring that the image originate on film, although you could consider the cyanotype itself to be the "film"; and
2) images that started out on film, and are printed from there.
Most would choose to directly print a film negative by making a contact cyanotype from it, but if you wanted to scan the film negative and then make a digital negative from the file, there is nothing wrong with that. That would make working from a 35mm negative - or for that matter, an 8"x10" negative - practical.
I'll leave to you why you would want to do that for postcards!

What's wrong with 8x10 postcards?? :laugh:
 

MattKing

Moderator
Moderator
Joined
Apr 24, 2005
Messages
52,028
Location
Delta, BC Canada
Format
Medium Format
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