"Sony's NEX cameras have a great deal going for them, especially the NEX-5n which is turning out to be one of the most popular new cameras of Q4 2011. But the widest E mount lenses available are 16mm, which on an APS-C sensor is the equivalent of 24mm. This is wide, but in many situations, not wide enough.
Fortunately NEX cameras have such a short lens-flange-to-sensor distance that virtually any lens ever made can be attached. Regular readers will know that I am something of a Leicaphile, and have a good collection of Leica M lenses. I also have a Sony A900 is my primary DSLR, and a full selection of Sony / Zeiss lenses. Since the new LA-EA2 adaptor allows any Sony Alpha mount lens to be attached while using phase detection autofocus, there is a wealth of really wide lenses available.
For this test I decided to look at two of the widest lenses available – the Cosina Voigtländer Ultra Wide-Heliar 12mm f/5.6 and the Sigma 8-16mm f/4.5-5.6 DC HSM. The Voigtländer is one of the widest rectalinear full frame lenses available, while the Sigma is the widest APS-C format lens focal length available. On a NEX-5n the Voigtländer becomes equivalent to an 18mm, while the Sigma at its widest focal length becomes equivalent to 12mm.
The 12mm Voigtländer sells for about $850, with an M to NEX adaptor costing an additional $50 to $250. The Sigma costs about $700 at retail, while the LA-EA2 adaptor costs another $400, for a total of $1,110. This makes them quite similar in price. The Sigma on the LA-EA2 is quite a bit larger and heavier, but has autofocus. The Voigtlander is more petite, but is manual focus only, and not a zoom.
The availability of autofocus may seem like a significant advantage for the Sigma, but in reality isn't so much. Lenses this wide have considerable depth of field at typical shooting distances, and so zone focusing is usually all it takes. More on this shortly.
Lets see how they each perform on the NEX-5n and how they compare with each other..."
"High Speed Photography may seem intimidating with all the high end Arduino Triggers and crazy setups that are going around.
If you just want to have a quick stub at high speed photography, your best chance is probably selecting a subject that is easy to shoot (pun intended) in the dark, and light it using a strobe. "How will the strobe know when to pop?" you ask. Easy, using a contact sensor. Such subjects include thing that you can blow up relatively slowly using an arrow or a slow moving pellet, like balloon, eggs and Christmas ornaments.
A contact sensor is one of the most primitive and easy to build high speed photography sensors and is basically build from two conductive surfaces each connected to one of the strobes contacts. When those two surfaces meet they short the circuit and pop the flash.
This is how the picture in the top of the post (by Henrik Vento) was taken, an arrow hits a contact trigger after passing through the egg and a burst of light is made.
The nice thing about contact trigger is that is very (very) easy to build (about 10 minutes of work and 2 pennies worth of equipment. That is including the two pennies you are going to use as materials."
Keywording is a tool to assign or tag meaningful words to your photos so people searching may find them. I often think of stock photography when I hear the word “tag” or “keyword” because it’s an important step in that industry — allowing photo buyers to find appropriate images. Although this is the case, adding keywords to your photos is also important in building your exposure on the web. Most online photo sharing sites, search engines, and web galleries use keyword recognition to help people find your images. Click Here: Essential Keywording Tips and Strategies for Photographers
TTL (Through The Lens) exposure compensation is a technology that allows a speed light or built-in flash work in concert with your modern digital SLR camera to give you well exposed photographs. Without getting too ...
Blog post at Through the Lens of Kimberly Gauthier : This week, I was listening to a podcast of a local radio program and they were listing off the tricks used on food photography sets and Ad e[..] (Food Photography Tricks to Create the Wow!
I shoot almost exclusively in Manual Mode these days, and I get anxious at the thought of giving my cameras' computer control of my exposure. Yeah sure, they often do a superb job at calculating exposure; but only under the most "generic of circumstances" not applicable to most real world photographers' creative needs. I found that I've really become used to the connection between the subject in frame and my manipulation of the exposure, which is to say that my stance about exclusive manual shooting is more than just being something a "pro" would say to distinguish his skill or expertise in the field. There's something about manual exposure control that once you have experience with, you won't easily give up.
This article at DPS definitely qualifies for #TeamManual Shooters
Last week we published a collection of amazing photos taken by iPhone and this article amazed many Photoble visitors. You can see in comments how people can’t believe you can do this with just an iPhone. Many pictures listed in the article, I believe, isn’t straight from the camera, but modified with help of photo editing apps you can find on iTunes. As I also own an iPhone it was very interesting for me to do a little research on iPhone apps you can use to tune up your photos.
Write for Digital Photography School. Are you a digital camera owner with a photography tip to share? Do you want a place to display and talk about some of your best photography? Are you interested in helping thousands of others to improve ...
20 free tips and tricks for landscape photography. Read this before booking any landscape photography course! Arts-and-Entertainment:Photography Articles from (Landscape Photography Tips and Tricks to Achieve Professional Results!
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