Q&A

 

Should I buy FX or DX lenses?

 •  April 15

I bought a Nikon D3300 with an 18-55 mm kit lens, and now I'm considering additional lenses, especially a telephoto zoom. While reviewing the options...

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Are filters necessary for digital photography?

 •  April 1

Back when I was shooting with a 35-mm SLR camera, I used a variety of filters but sold them all long ago. Now that I've bought an Olympus E-M5, I'm...

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What is “focal length magnification” and how does it work?

 •  March 14

Recently, I read a few articles on the Internet about lenses and several mentioned "focal length magnification." Others discussed the "crop factor"...

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How important is ISO 6400 quality?

 •  March 3

I've been reading reviews about DSLRs on various websites and noticed that some devote several pages to image quality at ISO 1600, 3200, 6400 and...

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How well are digital SLR cameras protected from moisture?

 •  February 17

How well are digital SLR cameras protected from moisture? We get a lot of snow here in winter and even more rain in the spring. How will that affect...

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Will a small maximum aperture of f/6.3 at the 400-mm and longer zoom settings cause a problem for autofocus?

 •  January 31

I noticed that many telephoto zooms, including the Tamron 150-600 mm and the Sigma 150-500 mm, feature a small maximum aperture of f/6.3 at the...

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Is it worth replacing a lens with the new/improved version?

 •  December 30

I'm shooting with a full-frame Nikon D800, often with a Sigma 12-24 mm f/4.5-5.6 EX DG Aspherical HSM zoom that I bought in 2005 for use with a 35 mm...

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Is it safe to clean your DSLR’s sensor?

 •  December 16

I'm seeing a lot of specks in my photos (usually in areas of sky) because of dust on my DSLR's sensor. The owner's manual recommends sending the...

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Which Dynamic Range option should I use?

 •  November 15

My Nikon D5200 provides several options for Active D-Lighting in the menu with Automatic as the default. But I can also set it to High, Extra High,...

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What tripod should I buy for shooting video with a DSLR camera?

 •  September 2

What kind of a tripod do I need when shooting video clips? I really want to take good Full HD movies with my new Nikon D3200, and I really should...

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