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black-Capped_Chickadee2.jpg
Upper Falls - Amnicon Falls, WI.  One of my first test shots with the Sigma 10-20mm and some Cokin ND graduated filters. Note, these filters added some flare to my shots.  I did not bother trying to remove or reduce the flare in the images.
chloe3.jpg
black-Capped_Chickadee2.jpg

From album Chickadee, Black-Capped (Poecile atricapilla)


Viewed:14380 times
Upper Falls - Amnicon Falls, WI. One of my first test shots with the Sigma 10-20mm and some Cokin ND graduated filters. Note, these filters added some flare to my shots. I did not bother trying to remove or reduce the flare in the images.

From album Amnicon State Park, Wi


Viewed:13048 times
chloe3.jpg

From album Chloe


Viewed:9694 times
black-capped_chickadee3.jpg
Aerial Lift Bridge, Duluth Mn.
Photo by Bob Barthen
Zenitar 16mm defished Full Frame -
Comparing the Field of view of the width (short side) of the fisheye to the width of the Sigma 10-20mm, I estimate the rectilinear equivalent is about 12mm. The field of view on a 12mm rectilinear lens is about 90x113. A defished fisheye results in an aspect ratio that is closer to 4.83:2 rather than 3:2.  This results in a larger Field of View on the long side of the image for an equivalent of 90x135. The long end is equivalent to about an 7.5mm lens. I'm not aware of any full frame rectilinear lenses that go wider than 12mm or 90x113, making fisheye lenses the widest lenses available for full frame 35mm cameras.
black-capped_chickadee3.jpg

From album Chickadee, Black-Capped (Poecile atricapilla)


Viewed:5413 times
Aerial Lift Bridge, Duluth Mn. Photo by Bob Barthen

From album Aerial Lift Bridge, Duluth Mn


Viewed:3449 times
Zenitar 16mm defished Full Frame - Comparing the Field of view of the width (short side) of the fisheye to the width of the Sigma 10-20mm, I estimate the rectilinear equivalent is about 12mm. The field of view on a 12mm rectilinear lens is about 90x113. A defished fisheye results in an aspect ratio that is closer to 4.83:2 rather than 3:2. This results in a larger Field of View on the long side of the image for an equivalent of 90x135. The long end is equivalent to about an 7.5mm lens. I'm not aware of any full frame rectilinear lenses that go wider than 12mm or 90x113, making fisheye lenses the widest lenses available for full frame 35mm cameras.

From album Wide vs Fisheye


Viewed:2775 times
lowerfalls2.jpg
common_mergansers2.jpg
Lower Falls Bridge - Amnicon Falls, WI. I thought this was an average looking shot but I decided to display it since I had the bridge in the background.
lowerfalls2.jpg

From album Amnicon State Park, Wi


Viewed:2449 times
common_mergansers2.jpg

From album Merganser, Common (Mergus merganser)


Viewed:2402 times
Lower Falls Bridge - Amnicon Falls, WI. I thought this was an average looking shot but I decided to display it since I had the bridge in the background.

From album Amnicon State Park, Wi


Viewed:2005 times
Lower Falls - Amnicon Falls, WI.
I like this photo but it was plagued with dust spots.  I made a half hearted attempt in removing them.
Upper Falls - Amnicon Falls, WI.  Too bright for a long exposure. I still thought the photo was descent though.
lowerfalls1.jpg
Lower Falls - Amnicon Falls, WI. I like this photo but it was plagued with dust spots. I made a half hearted attempt in removing them.

From album Amnicon State Park, Wi


Viewed:1923 times
Upper Falls - Amnicon Falls, WI. Too bright for a long exposure. I still thought the photo was descent though.

From album Amnicon State Park, Wi


Viewed:1791 times
lowerfalls1.jpg

From album Amnicon State Park, Wi


Viewed:1667 times
blackCappedChickadee_Sitting.jpg
chloe2.jpg
Amnicon_Lower_Falls_tall.jpg
blackCappedChickadee_Sitting.jpg

From album Chickadee, Black-Capped (Poecile atricapilla)


Viewed:1630 times
chloe2.jpg

From album Chloe


Viewed:1527 times
Amnicon_Lower_Falls_tall.jpg

From album Amnicon State Park, Wi


Viewed:1480 times

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