Q&A

 

Do you recommend a close-up filter accessory for macro photography?

 •  January 30

I cannot afford to buy a macro lens right now, but in a book on close-up photography I read that a supplementary close-up filter, such as the Canon...

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What is the best way to increase file size while retaining maximum quality?

 •  January 16

My wife got a fabulous photo during our visit to India with her older 8-megapixel point-and-shoot camera, and I want to make a 13 x 19" print with my...

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What’s the best way to calibrate a lens for autofocus accuracy?

 •  December 19

A friend sent me a link to an article on the Internet about the need to calibrate lenses so they will autofocus with 100% accuracy? But if this is so...

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Should I buy a 70-200 mm f/2.8 or a 70-200 mm f/4 lens?

 •  December 15

Several of my friends own a 70-200 mm f/2.8 lens and I'm considering one for my EOS 7D, but there's also an f/4 version that's smaller, lighter and...

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What is the benefit of the Vibrance tool in Adobe software?

 •  November 28

I just bought Adobe Lightroom and noticed that there's a feature called Vibrance. Apparently this is like the Saturation tool but differs in some...

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Does Clarity adjustment provide better results than Sharpening?

 •  November 14

Since I use Photoshop to convert my RAW captures, I have access to a Clarity slider in Adobe Camera Raw that seems to make my images much sharper....

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Should I buy an older used DSLR at a bargain price or a more expensive brand-new model?

 •  October 31

Many photo enthusiasts are attracted by great prices on gently used DSLRs and that's understandable especially when it's a semi-pro camera like the...

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How can I get rid of white spots that appear in all my photos?

 •  October 15

It's possible that a dried drop of liquid on the sensor is causing the dots, M.K.F., but not likely dust specks since those would appear as black...

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What’s the difference between sensor sizes in cameras with a built-in lens?

 •  October 1

I want to get a high-grade camera with a built-in lens for use when I cannot carry my full DSLR system, but I'm confused by the entirely different...

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Should I pay more for a computer with extra RAM?

 •  September 15

Now that I own a 24-megapixel camera, I am planning to buy a new desktop PC with large monitor and hope to pay about $800; in a pinch, I could afford...

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