Sony shows a curved sensor

Started 5 months ago | Discussions thread
Joseph S Wisniewski
Forum ProPosts: 33,978Gear list
Like?
you tell me how you can curve film?
In reply to ApertureAcolyte, 5 months ago

ApertureAcolyte wrote:

enemjii wrote:

The earth is round, the moon is round, and so is the sun and other planets.

Don't know what the man was thinking when he decided flat is good.

Errr.... you tell me how you can curve film?

With a "vacuum hold down".

  1. Mill a metal plate (or cast a plastic one) to the curve you need.
  2. Drill a few dozen very small holes in it.
  3. Make the plate the front of a sealed box.
  4. Hook the box up to a vacuum pump

This technique was actually used in certain astrophotography applications. It's a viable technique when your optical system has a fixed focal length, is only used at one focal distance, and is insanely expensive.

It was also used with flat plates to insure film flatness in high end copy and architectural cameras.

Well, you asked.

-- hide signature --

Rahon Klavanian 1912-2008.
Armenian genocide survivor, amazing cook, scrabble master, and loving grandmother. You will be missed.
Ciao! Joseph
www.swissarmyfork.com

 Joseph S Wisniewski's gear list:Joseph S Wisniewski's gear list
Canon EOS 5D Mark II Nikon D90 Nikon D2X Nikon D3 Nikon D100 +43 more
Reply   Reply with quote   Complain
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow