SeEtta Moss wrote:
When I woke up this morning I realized that the photo I posted to give
some perspective is great for showing what it looks like when a photo
is taken with a super telephoto lens or the view through a very good
spotting scope as my set-up results in about a 12 X magnification even
without cropping for enlargement. So I have posted a photo I took of
the Snowy Owl on one of the rooftops with my point and shoot camera
yesterday that is about 'normal' naked eye view (about 50 mm) on my
blog BirdsAndNature <http://BirdsAndNature.blogspot.com>
SeEtta,
While I agree with what you say regarding disclosure, it is not practical
to give distance to subject with much accuracy. But because of the
interest
people seem to be expressing photographing the snowy on this list, I'll
point
out a couple of things that may help budding bird photographers.
First, there is no crop factor multiplication of telephoto focal
length as you say in your blog. I'll point people to my (non-commercial)
web site:
Crop Factor and Digital Cameras
http://www.clarkvision.com/articles/cropfactor
Crop factor describes the equivalent focal length to get the same
field of view and does not apply to resolution on the subject that
does not fill the frame, like a bird.
Second, try and have the sun at your back so your are between the
sun and the subject. The light is better early and late.
If you want to capture the bird in flight, one needs to set your
camera to operate for that condition (action photography):
http://www.clarkvision.com/articles/tracking.action.with.autofocus
And there are other articles if you are interested.
I have not been out to see the snowy (just got back from Florida were
it was colder than Colorado).
Roger Clark
Lakewood, CO
I want to add to the request I made last night for those photographing
the Snowy Owl. I believe that photographers should *publicly* post
the distance at which they took photos of rare and sensitive
species. And I most definitely believe that photographers who bait
birds and other wildlife should be revealing those facts and not
giving viewers the impression that they took their photos under
natural conditions- just like photographers are now expected to reveal
when their subjects were captive. To do otherwise is deceptive. This
should be done not only for this Snowy Owl but for all very rare or
sensitive birds and other wildlife. I cannot imagine that ethical
photographers would be reluctant to do so. That is the basis of
scientific process- to be open about actions taken and to have those
actions judged by their peers.
SeEtta Moss
Canon City
http://BirdsAndNature.blogspot.com
