On Jul 24, 2005, at 7:48 AM, Fred wrote:
Thanks, Cotty, for sharing the photos. I've been looking for a
number of
15/3.5 shots taken on one of the Pentax DSLR's, to see just how
"wide" the
15/3.5 is with the crop effect. (I'd say it's still pretty wide,
but just
not extremely so.) Thanks again.
The DS has a smaller sensor than Cotty's Canon 1D, so his photos have
a wider field of view than you'll get with the D/DS. A 15mm lens on
the DS gives a field of view in between a 21 and a 24mm lens on a
35mm film camera. These field of view calculations provided by Rui
Salgueiro's online field-of-view calculator:
http://www.mat.uc.pt/~rps/photos/angles.html
"F" format specified as 24x36mm
"D" format specified as 16x24mm
---
F FL=21: 81.2 degrees H x 59.4 degrees V x 91.7 degrees D
D FL=14: 81.2 degrees H x 59.4 degrees V x 91.7 degrees D
D FL=15: 77.3 degrees H x 56.1 degrees V x 87.7 degrees D
F FL=24: 73.7 degrees H x 53.1 degrees V x 84.0 degrees D
D FL=16: 73.7 degrees H x 53.1 degrees V x 84.0 degrees D
---
Godfrey
