- Original Message -
From: "Andrew Amundsen"
Subject: [pinhole-discussion] Focal lengths
> Can someone tell me what the 12mm lens (in 35mm format) equivalent
would
> be in 4x5" format?
>
I use quite a range of formats and to convert back to 35mm format
equivalent, I use the following for
- Original Message -
From: "Andrew Amundsen"
> Can someone tell me what the 12mm lens (in 35mm format) equivalent would
> be in 4x5" format?
>
> I'm using a dual focal length 4x5" pinhole camera which only gives it's
> focal lengths in 35mm format terms (12mm/24mm,super wide/wide). I hav
>= Original Message From "Andrew Amundsen"
=
>Can someone tell me what the 12mm lens (in 35mm format) equivalent
would
>be in 4x5" format?
Here's how I figure it. On a 35mm, 50 is normal (the diagonal of the
24mmx36mm frame is 48mm) on a 4x5 180mm is normal. Half of 50 is
25, and half
