Thursday, 6 October 2011

20 Incredible Photos Captured Through a Microscope

PopPhoto
October 06, 2011
Breaking news from America's top photo magazines
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Nikon announced the winners of its annual Small World Photomicrography contest and once again, the results are mesmerizing

Every year, Nikon's Small World competition puts a call out to photomicrographers, asking for their best ultra-magnified images. The following photos were all captured using light microscopes. The subjects are incredibly small, the capture process is extremely complex, and the results are nothing short of incredible. These 20 are the best, as picked by a panel of expert judges.

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Audio slideshows are the perfect multimedia marriage between sound and still images
We'll still take a dedicated camera over a cell phone camera any time, but the difference isn't what it once was
Plus, faster processing, shorter lag times and 1080p video


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Decisions, Decisions...
Reader Arkaprava Acharyya wants to get into wildlife photography with a Nikon D5100 and asked us about the relative merits, particularly image quality at the tele end, of two lenses: Tamron’s 70–300mm f/4–5.6 Di VC USD and Nikon’s 70–300mm f/4.5–5.6 AF-S. These two virtually tied in SQF at 300mm (both with a Good rating) but the Tamron did better at all focal lengths in control of vignetting and distortion. Given that it’s priced at $450, street, compared with the Nikon at $530, it’s an attractive option—but you wouldn’t go wrong with either lens.


 
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Thursday, 29 September 2011

Camera Test: Sony's A77 Is The New King of APS-C DSLRs

PopPhoto
September 29, 2011
Breaking news from America's top photo magazines
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The other guys should be worried

The A77 sports a new 24.3MP Exmor APS-C sized sensor, the world's first OLED electronic viewfinder in a DSLR, and a 3-inch 921,600-dot LCD monitor that flips down and swivels -- mounted on an armature that lets it extend away from the body and rise up, so that you can face it forward for self-portraits. Oh, and it also includes all the whiz-bang features that Sony has been building into all of its cameras lately.

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An expert wedding shooter shares some secrets for making a couple look their best on their big day 
A look at Nikon's littlest interchangeable-lens body and the glass that goes with it
A folding mini-tripod that's always on


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Light it Up
Q. What exactly is a Backlit sensor?

A. Also known as a back-side illuminated or BSI sensor, this is a type of camera sensor used in compacts from Canon, Nikon, Sony, and others. The technology was developed to improve the light-gathering capability of the smaller chips used in these cameras, and the term refers to the way circuitry is burned onto sensor substrates during their manufacture. With conventional sensors (both CMOS and CCD), circuitry is laid into the sensor’s top surface surrounding its pixels. That results in smaller pixels that are recessed from the sensor surface, which compromises efficiency.
Backlit sensors, on the other hand, have their circuitry located beneath the pixels on the rear of the silicon substrate (hence “backlit”), which is shaved thin to accommodate it. Larger pixels that are relatively flush with the sensor’s surface are the result, with significant gains especially in low-light performance.


 
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Thursday, 22 September 2011

Hands-On With Nikon's New J1 and V1 Interchangeable Lens Cameras

PopPhoto
September 22, 2011
Breaking news from America's top photo magazines
PopPhotoAmerica Photo
Nikon treads new ground with an ILC and a wholly new lens mount

Nikon has been extremely tight-lipped about their newest camera system, but they finally pulled back the curtain and unveiled a pair of interchangeable lens compact cameras that bring the company full-force into the ILC war.

The guts of both cameras revolve around a 10.1-megapixel CMOS sensor in what Nikon is calling the CX size. That's 13.2mm x 8.8mm, which makes it smaller than most of its ILC competition, but bigger than the upcoming Pentax Q system. 

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We spent an afternoon shooting around with Nikon's newest creation
The future of Nikon's newest camera system is put on display
Despite a lack in the autofocus department, this lens is sharp as a tack


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Black-and-White Issues
Q. How do you get proper exposure for black people wearing white tuxes? And white people wearing black tuxes?

A. First, use RAW capture. RAW files let you recover detail in shadows and highlights that might be lost in JPEGs. For dark-complexioned people in white formal wear, the common flaw is underexposure, the lightmeter or flash sensor is fooled by all that white into reducing the exposure, thus losing facial detail. To compensate, add 1 to 1.5 EV exposure to an overall meter reading or flash setting. Another alternative is to use a handheld incident lightmeter, which reads the light falling on a subject rather than the light reflected from a subject.

With light-skinned people in black garb, the situation reverses. Here, an overall meter or flash reading will tend to overexpose, thus blowing out highlights—namely, faces. You will want to reduce exposure from an overall meter reading in this case. In any event, keep in mind that you may have to sacrifice highlight or shadow detail. Just make sure it’s in the formal wear and not the faces.


 
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