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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:15242 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:14306 times
chloe3.jpg

From album Chloe


Viewed:10104 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:6782 times
Aerial Lift Bridge, Duluth Mn. Photo by Bob Barthen

From album Aerial Lift Bridge, Duluth Mn


Viewed:4110 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:3019 times
Blatnik Bridge - Duluth, MN / Superior, WI
lowerfalls2.jpg
common_mergansers2.jpg
Blatnik Bridge - Duluth, MN / Superior, WI

From album Blatnik Bridge - Duluth, MN / Superior, WI


Viewed:2743 times
lowerfalls2.jpg

From album Amnicon State Park, Wi


Viewed:2639 times
common_mergansers2.jpg

From album Merganser, Common (Mergus merganser)


Viewed:2565 times
Young Female Red Winged Black Bird Chirping
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.
Skyline drive in Duluth Mn.  Full moon looking over to Superior Wi.
Young Female Red Winged Black Bird Chirping

From album Red Wing Blackbird Baby


Viewed:2246 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:2151 times
Skyline drive in Duluth Mn. Full moon looking over to Superior Wi.

From album Blatnik Bridge - Duluth, MN / Superior, WI


Viewed:2119 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.
blackCappedChickadee_Sitting.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:2037 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:1909 times
blackCappedChickadee_Sitting.jpg

From album Chickadee, Black-Capped (Poecile atricapilla)


Viewed:1840 times

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