Friday, July 31, 2009
Planets
Flash movie by Annick Vanderschelden 2009
Music by Aaron Dunn Sonata No.1. Instrument: Piano.
Edited (trimmed) in Soundbooth CS4.
Thursday, July 30, 2009
Depth-of-field calculator
In the Canon Professional Newsletter (CPN) July 2009 you can find a technical article titled Tools: Depth-of-field calculator
It defines briefly the depth-of-field concept and how the former can be applied in photography. For example isolating a subject through a shallow depth-of-field. Furthermore it deals with the variables you need to take into account when calculating the depth-of-field such as the Circle of confusion. The Circle of confusion represents the largest blurred circle that can still be clearly defined by the human eye from a given distance.
Some assumptions were made to develop the calculator.
About the calculator...
You can select your EOS Canon camera, fill in the focal length, select the f-stop and finally the focus distance. The calculator will immediately tell you the 'Near limit of focus', the 'Far limit of focus', the 'Total depth-of-field' and the 'Hyperfocal distance'.
Example 1:
Input:
I'm shooting a lion somewhere in Africa with my 400mm, the distance between the lion is more or less 15 metres, the aperture is 2,8 and the body is a EOS 1D-MarkIII.
So the Depth-of-Field calculator says:
Near limit of focus: 14,9 m
Far limit of focus: 15,1 m
Total depth-of-field: 0,23m
Hyperfocal distance: 1905,2m.
The conclusion might be that the Total depth-of-field is too shallow here and it would be recommended to have a smaller aperture. For example f/5,6 generates 0,46 metres and f/8 0,66 meters.
Notice that the hyperfocal distance is 1905,2 metres; focus at 952,6 metres and things are sharp between 952,6 metres and infinity.
Example 2:
Input:
A 350D body with a zoom lens at focal length 22 mm and the aperture is f/8. The subject distance is 4 meters.
Depth-of Field calculator:
Near limit-of-focus: 1.78m
Far limit of focus: Infinity
Total Depth-of-Field: Infinite
Hyperfocal distance: 3,21 metres.
So everything between 1,605 metres and infinity will be sharp here.
Example 3:
Input:
I'm photographing a small bird such as a weaver approximately 4 meters away with a 400mm lens at an aperture f/2,8. This will generate a Total depth-of-field of 0,01 meter.
Through this calculator you'll quickly see that for example f/8 @ 6 meters is much better as you'll 0,08 meter room which will result in a sharper bird overall.
In my opinion this Depth-of-Field Calculator tool is a very useful and efficient tool as it just gives you an idea of the amount of depth-of-field you will have in certain situations.
Threaded view TrekNature forums Depth-of-field calculator.
It defines briefly the depth-of-field concept and how the former can be applied in photography. For example isolating a subject through a shallow depth-of-field. Furthermore it deals with the variables you need to take into account when calculating the depth-of-field such as the Circle of confusion. The Circle of confusion represents the largest blurred circle that can still be clearly defined by the human eye from a given distance.
Some assumptions were made to develop the calculator.
About the calculator...
You can select your EOS Canon camera, fill in the focal length, select the f-stop and finally the focus distance. The calculator will immediately tell you the 'Near limit of focus', the 'Far limit of focus', the 'Total depth-of-field' and the 'Hyperfocal distance'.
Example 1:
Input:
I'm shooting a lion somewhere in Africa with my 400mm, the distance between the lion is more or less 15 metres, the aperture is 2,8 and the body is a EOS 1D-MarkIII.
So the Depth-of-Field calculator says:
Near limit of focus: 14,9 m
Far limit of focus: 15,1 m
Total depth-of-field: 0,23m
Hyperfocal distance: 1905,2m.
The conclusion might be that the Total depth-of-field is too shallow here and it would be recommended to have a smaller aperture. For example f/5,6 generates 0,46 metres and f/8 0,66 meters.
Notice that the hyperfocal distance is 1905,2 metres; focus at 952,6 metres and things are sharp between 952,6 metres and infinity.
Example 2:
Input:
A 350D body with a zoom lens at focal length 22 mm and the aperture is f/8. The subject distance is 4 meters.
Depth-of Field calculator:
Near limit-of-focus: 1.78m
Far limit of focus: Infinity
Total Depth-of-Field: Infinite
Hyperfocal distance: 3,21 metres.
So everything between 1,605 metres and infinity will be sharp here.
Example 3:
Input:
I'm photographing a small bird such as a weaver approximately 4 meters away with a 400mm lens at an aperture f/2,8. This will generate a Total depth-of-field of 0,01 meter.
Through this calculator you'll quickly see that for example f/8 @ 6 meters is much better as you'll 0,08 meter room which will result in a sharper bird overall.
In my opinion this Depth-of-Field Calculator tool is a very useful and efficient tool as it just gives you an idea of the amount of depth-of-field you will have in certain situations.
Threaded view TrekNature forums Depth-of-field calculator.
Wednesday, July 29, 2009
Jackal
In jackal society the social unit is that of a monogamous pair which defends its territory from other pairs. These territories are defended by vigorously chasing intruding rivals and marking landmarks around the territory with urine and feces. The territory may be large enough to hold some young adults who stay with their parents until they establish their own territory. Jackals may occasionally assemble in small packs, for example to scavenge a carcass, but normally hunt alone or as a pair. 
This animal, a Black-backed jackal is photographed in Etosha National park, Namibia. More specifically in Okaukuejo Rest Camp at the waterhole. December 2008. Capture time: 18:10.
Photo is a crop and a resized version of the original file.
Developed in Lightroom 2.0 and Photoshop CS4.
This animal, a Black-backed jackal is photographed in Etosha National park, Namibia. More specifically in Okaukuejo Rest Camp at the waterhole. December 2008. Capture time: 18:10.
Photo is a crop and a resized version of the original file.
Developed in Lightroom 2.0 and Photoshop CS4.
Tuesday, July 28, 2009
Oryx gazella
From Wikipedia, the free encyclopedia
The gemsbok or gemsbuck(Oryx gazella) is a large African antelope, of the Oryx genus. The name is derived from the Dutch name of the male chamois, Gemsbok. Although there are some superficial similarities in appearance(especially in the colour of the face area), the chamois and the oryx are not closely related.
Photo is captured in Etosha National Park, Namibia. In December 2008.
The gemsbok or gemsbuck(Oryx gazella) is a large African antelope, of the Oryx genus. The name is derived from the Dutch name of the male chamois, Gemsbok. Although there are some superficial similarities in appearance(especially in the colour of the face area), the chamois and the oryx are not closely related.
Photo is captured in Etosha National Park, Namibia. In December 2008.
Saturday, July 25, 2009
Friday, July 24, 2009
Tuesday, July 21, 2009
Jurgen Van Den Broeck
Jurgen Van Den Broeck
Originally uploaded by annick vanderschelden
Jurgen Van Den Broeck (born February 1, 1983 in Herentals) is a Belgian professional road bicycle racer for UCI ProTeam Silence-Lotto.Wikipedia.
Etosha landscape
Etosha National Park is a national park in the Kunene Region of northwestern Namibia.. From wikipedia...
North okay, western not really.
Sunday, July 19, 2009
Thursday, July 16, 2009
Wednesday, July 15, 2009
Road Bicycle Racing and Cyclo-cross photographs
Annick Vanderschelden's set in Flickr titled:
Road Bicycle Racing and Cyclo-cross photographs
Road Bicycle Racing and Cyclo-cross photographs
Sunday, July 12, 2009
Sugar Jackson
KO loss against Selcuk Aydin in Besiktas Cola Turka Arena, Istanbul, Turkey.
2009-07-11.
Sugar Jackson
Originally uploaded by annick vanderschelden
Photo taken in Lotto Arena, Merksem, Antwerpen, Belgium. EBU (European) welterweight title against Viktor Plotnikov(photo below).
2009-07-11.
Sugar Jackson
Originally uploaded by annick vanderschelden
Photo taken in Lotto Arena, Merksem, Antwerpen, Belgium. EBU (European) welterweight title against Viktor Plotnikov(photo below).
Simon Vinkenoog
Simon Vinkenoog died today.
Simon Vinkenoog
Originally uploaded by annick vanderschelden
About photo...
Photo capture date: Sunday, February 17 2008.
Place: Schouwburg 30CC, Bondgenotenlaan, Leuven.
Event: Kulturama 2008 and 'Het verdriet van België'(Hugo Claus).
Simon Vinkenoog wrote about this moment in his webstek. Webstek Simon Vinkenoog; click on 'Kersvers Archief' and go to '17 Februari 2008'.
Click on the photo to view a larger version and the Flickr keywording.
Simon Vinkenoog
Originally uploaded by annick vanderschelden
About photo...
Photo capture date: Sunday, February 17 2008.
Place: Schouwburg 30CC, Bondgenotenlaan, Leuven.
Event: Kulturama 2008 and 'Het verdriet van België'(Hugo Claus).
Simon Vinkenoog wrote about this moment in his webstek. Webstek Simon Vinkenoog; click on 'Kersvers Archief' and go to '17 Februari 2008'.
Click on the photo to view a larger version and the Flickr keywording.
Thursday, July 09, 2009
Antwerp Fashion 2009. Catwalk photo.
Antwerp Fashion 2009. Catwalk photo.
Originally uploaded by annick vanderschelden
Catwalk photo. Antwerp Fashion 2009 show.
Monday, July 06, 2009
Sinksenfoor Antwerpen
Photographed in Antwerp at the funfair. Developed and edited respectively in Adobe Lightroom 2.4 and Photoshop CS4.
Sinksenfoor Antwerp
Sinksenfoor Antwerp
Originally uploaded by annick vanderschelden
The location is the Sinksenfoor 2009 in Antwerp.
Edited in Lightroom 2.4 and Photoshop CS4. Mainly in Adobe Camera Raw.
New York in Antwerp
The location is the Sinksenfoor 2009 in Antwerp.
Edited in Lightroom 2.4 and Photoshop CS4. Mainly in Adobe Camera Raw.
Edited in Lightroom 2.4 and Photoshop CS4. Mainly in Adobe Camera Raw.
Sunday, July 05, 2009
Andy Schleck
Road racing cyclist Andy Schleck, photographed in Bavikhove, Belgium. In April 2009 he won the biggest victory in his career so far in Liege-Bastogne-Liege.
Andy Schleck
Originally uploaded by annick vanderschelden
Andy Schleck
Originally uploaded by annick vanderschelden
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