hort.net Seasonal photo, (c) 2006 Christopher P. Lindsey, All Rights Reserved: do not copy
articles | gallery of plants | blog | tech blog | plant profiles | patents | mailing lists | top stories | links | shorturl service | tom clothier's archive0
Gallery of Plants
Tech Blog
Plant Profiles
Mailing Lists
    Search ALL lists
    Search help
    Subscription info
Top Stories
sHORTurl service
Tom Clothier's Archive
 Top Stories
New Trillium species discovered

Disease could hit Britain's trees hard

Ten of the best snowdrop cultivars

Plant protein database helps identify plant gene functions

Dendroclimatologists record history through trees

Potato beetle could be thwarted through gene manipulation

Hawaii expands coffee farm quarantine

Study explains flower petal loss

RSS story archive

Re: WAR SAILS in the morning

  • Subject: Re: [iris-photos] WAR SAILS in the morning
  • From: oneofcultivars@aol.com
  • Date: Tue, 27 May 2003 11:36:30 EDT

Well, Texan, the little I know with some uncertainty follows:

All the talk about cameras has me asking what settings to look for.  I can't
find one on my Olympus 360 Zoom that allows me to set for higher or lower

Not all cameras have such an option. Some have such an option but do not designate it as a pixel choice. They may call it "email" or something else.

There seem to be only three settings, a flower (closeup), a tree
(distance, I presume) and neither.

The flower icon has long been used in photography to designate macro mode.
The tree icon has been used as landscape mode and no icon may mean one of two things. It may average the two modes, which is most probable or it may allow the camera to select automatically the best mode (less probable).

The essential difference in macro mode and landscape mode is the distance at which the camera lens and hence the picture will remain in best focus. Macro allows you to be perhaps as close as 6 inches from the subject to maybe as much as 20 inches away. These distances are ballparked and vary from camera to camera. Landscape mode essentially focuses the camera lens at infinity. It is likely the reason you cannot tell much difference is that most of your pics are being taken at distances near the max for macro mode and the other modes average from that distance out. Take a close up of beards from about 10 inches in each mode and compare them. Your camera book usually gives the exact distance tolerances for each setting.

It is a nicer color than the muddy red indicated, but is
still more accurate than the one taken in bright sunlight.

White Balance is another feature available on some cameras that can exert some effect on accurate color depiction and the amount of reflected highlights the camera sees.

At least some of the difficulty we encounter is caused by the texture and sheen exhibited by the flower petals. The angle of incidence from the light source affects the wave lengths that are absorbed by the surface and the wave lengths that are reflected. When this is coupled with mans inability to construct light sensors as perfect as the human eye we get the photo variance you depict. Too, the mechanical apparatus in the camera are less perfect than the lens in our eye and the brain in the camera is less capable than the one in our head when it comes to averaging the reflected light waves. We are indeed a wonderful apparatus constructed by a master engineer. Until humans reach this level of engineering expertise we will have to make do with various techniques (filters, shades, time choices, software, etc.) to make colors close. Of the choices available to us, software and time choice have worked best here with software being the more practical of the two.

Regardless, tis a beautiful photo devoid of all thoughts of war.

Bill Burleson 7a/b

Yahoo! Groups Sponsor
Click Here!

Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.

 © 1995-2017 Mallorn Computing, Inc.All Rights Reserved.
Our Privacy Statement
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index