NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: NG's "Midnight Fun"
From: Peter Fogg
Date: 2010 Jun 16, 03:25 +1000
From: Peter Fogg
Date: 2010 Jun 16, 03:25 +1000
Greg Rudzinski wrote:
Thus all that agonising over apparent or other distortion towards the edges of the field was irrelevant in respect of this application.It is my understanding that the modern digital 50mm SLR camera produces an image equivalent to a 75 or 80mm film version.
It really depends on which camera using which sensor. Particularly when you use that "modern" qualification, as so-called "full frame" sensors are becoming increasingly common, that approximate the now old 24mm x 36mm film size. Note that 'approximate', and that the actual conversion factor needs to be known, whether zero or something else, in order to calculate the conversion. Otherwise you just don't know.
I stay in the middle of the frame...
