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Topics - justawriter

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Lenses / Replacing my 18-270
« on: November 15, 2013, 10:40:49 AM »
Just a quick question for the group mega-mind. My Tamron 18-270 (older version) bit the dust (literally, I work in the North Dakota oil patch and until they paved some key roads this summer it was like a dust storm every day). I use my 7D for newspaper work so IQ isn't the #1 priority compared to getting the photo right now, and I appreciate not having to swap lenses. So right now B&H has the Sigma 18-250 with a $200 instant rebate at $349 and the Tamron has a $70 mail in rebate at $379. I am leaning towards the Sigma because I don't think I will miss those 20 extra mm and I really don't like mail in rebates. Any thoughts one way or another on these two lenses, especially in terms of durability and weather resistance?

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Portrait / Just because I like this photo
« on: June 02, 2013, 02:01:55 AM »
Besides how often does one get to post a photo of a Polynesian fire dancer performing in a North Dakota Arikara earth lodge?

Canon 7d, Tamron 18-270, 1 second exposure, f16, ISO 1600, Speedlite 430 EX

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Third Party Manufacturers / Interesting contest from Tamron
« on: May 02, 2013, 11:40:54 AM »
They want to make you work for this freebie. http://tamron-usa.com/scavengerhunt/

4
Lenses / Long zooms
« on: April 15, 2013, 08:55:52 AM »
I am considering purchasing a long zoom lens for football and rodeo photos and birding. Does anyone have links to reviews comparing the Canon EF 100-400mm f/4.5-5.6 L IS USM, Tamron AF 200-500mm f/5.0-6.3 Di LD SP FEC (IF) and Sigma 150-500mm f/5-6.3 AF APO DG OS HSM? Any personal opinions (like I have to ask) whether the Canon is worth the extra $500-$700? I shoot a 7D, mostly for newsprint (so everything gets halftoned down to 150 dpi).

5
Canon General / Goodbye Cruel Canon
« on: March 31, 2013, 11:22:17 AM »
    Well, congratulations. You’ve convinced me. After reading these forums all of the erudite and eloquent comments have convinced me to totally toss my vast collection of Canon cameras and lenses and seek a better alternative.
With that in mind I have hired the entire graduating class of the closest Art Institute of America location to follow me around and paint everything I used to take photos of on primitive digital camera equipment. It is a simple point and shoot interface. I point at something and one of the kids sits down and starts to draw it. The image quality is superb. No matter how much you magnify the images, you can’t get down to the pixel level, unless you are using the pointillist module. Well, I suppose you can with an atomic force microscope, but it will be a few years before I can afford accessories like that. Depth of field and dynamic range are infinitely flexible.
    Processing time is slower than with my 7d. Some images can take months to develop. But the filters are amazing. The impressionist module does wonderful things with landscapes and abstract module makes portraits fun and surprising. The tagger module allows for incredible enlargements, limited only by the size of available wall space.
    Granted, my system is a little expensive and clearly not for everyone. It came as surprise that artists these days expect to eat every day. Storage is also a challenge. However, I believe that anyone who is serious about producing great images will quickly realize that my setup is the only conceivable way to get the kind of images we all know we want. Anything less is ludicrous.

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