Bailey Keyes competes in the saddle bronc during the Iowa High School Rodeo in Moville Saturday, August 29, 2009.  (Jim Lee/Sioux City Journal)

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Grand View’s Lawrence Taylor is stopped at the goal line by Briar Cliff’s Taylor Schumacher, 18, and Jarrod Makovicka, 43,  during football action at  Memorial Stadium Saturday, August 29, 2009.  (Jim Lee/Sioux City Journal)

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East’s Britt Anderson is tackled by Des Moines Roosevelt’s Jahzel Fristo during football action at Olsen Stadium Friday, August 28, 2009.  (Jim Lee/Sioux City Journal)

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Sioux Falls’ Tim Hutting is forced out at second as Sioux City’s Derek Schermerhorn throws to first for a double play during Explorers baseball action at Lewis and Clark Park Tuesday, August 25, 2009. (Jim Lee/Sioux City Journal)

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Dennis Leonard, Holstein, talks about animal hides during the Discovery Corps Sgt. Floyd Memorial Encampment at the Sgt. Floyd Riverboat Museum and Welcome Center Sunday, August 23, 2009. (Jim Lee/Sioux City Journal)

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El Paso’s Eddy Rodriguez is forced out at second as Sioux City’s Nick McCoola throws to first for a double play during Explorers baseball action at Lewis and Clark Park Tuesday, August 11, 2009.  (Jim Lee/Sioux City Journal)

Canon 50D w/200mm f/2 lens + 1.4 Extender, ASA 1000, 1/1300 sec at f/2.8

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Sioux City center fielder Dustin Jones makes a diving catch against Wichita during Explorers baseball action at Lewis and Clark Park Friday, August 7, 2009.(Jim Lee/Sioux City Journal)

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I am learning the hard way that the Canon 2X Extender does not like bright white uniforms in bright sunlight, at least when I am shooting with the lens wide open. It produces an effect called chromatic abberation, which produces a haloing effect around some portions of the photo.

After shooting this photo, which I kinda liked but it looked even worse after being reproduced in the paper, I did some testing with my 200/2 lens and the 2X extender. I was able to reproduce the effect, but found it is worse when I am shooting wide open at f/4. At f/4.5 the effect was barely noticeable and at f/5 the effect was gone. I’ll still use the 200/2 and 2X Extender combination, but I’ll just have to avoid shooting wide open.

I also have the 1.4 Extender which works great on my 200/2. I’ve never seen any problems with that combination at it produces great results even when shooting wide open at f/2.8.

Michael Bolton performs at the Orpheum Theatre Sunday, August 2, 2009. (Jim Lee/Sioux City Journal)

I ran into an acquaintance right before the concert who saw I had a photo pass and quickly offered to carry my cameras for me. Well, I don’t exactly get the best seat in the house when shooting concerts at the Orpheum. I was placed at the very back of the theatre next to the soundboards. Plus I was only allowed to stay for the first three songs. So having that photo pass isn’t exactly glamorous. If a person really wants to see a concert, I recommend getting a ticket.

Photos were shot with my Canon 50D camera and I was using my 200/2 lens, some shots were with a 2X Extender, some without.