A Simple Explanation On How Aperture Impacts Depth Of Field (And Why Pinholes Are Always Sharp)

lenses-pinholes

There is a Seinfeld episode where George loses his glasses, yet he is able to spot a coin on the floor by squinting. Without knowing the team at Seinfeld made a very elegant scientific experiment comparing lenses to pin holes.

A Lens makes things sharp by focusing rays of light coming from a source so the rays converge on a single sport.

A pinhole, on the other hand, only allows light to enter from a single direction thus not letting it blur.

Both aspects are very clearly explained in this video by MinutePhysics.

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How To Become A Pro Photographer In Four Steps

With the rise of digital cameras it is becoming increasingly easy to become a photographer. It is not enough to own the gear for the job anymore and you need to bring something extra to the plate.

With this in mind we shared a tongue in cheek post a while back demonstrating how you can become a wedding photographer in ten easy steps. It looks like satire facebook page Being Satan did us one over and is now sharing an easier way to become a pro in only four steps.

photographer-in-four-steps

Have you had a job taken by a pro photographer like that?

[via 9gag]

Shared a Night-Time Photo Of The Eiffel Tower? You Are Breaking The Law

Eiffel_Tower_by_the_Seine_river,_Paris,_2_March_2014

One of the most iconic places to visit in France (and in Paris in particular) is the Eiffel tower. And while anyone is free to take its photos by day or night, sharing a photo of the light-show that the tower is engulfed in is pretty much infringing on the copyright of the show.

torrentfreak aims a spot light on this weird copyright situation by explaining that some architecture and some landmarks are copyrighted.

Actually, the Eiffel tower official website states this pretty clearly:

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Parachute Wraps Around Gopro, Skydiver Calmly Untangles It And Moves On

sky-diving-gopro

A lot has been said about the dangers of skydiving with a camera attached to one’s helmet. The bonus of awesome footage comes with the risk of having a weird pong camera mount sticking out of your helmet. And while most of the time the camera will provide some sweet memories there are occasions where it can put you in a life threatening situation.

There is not much info about the footage below. But it clearly shows the dangers of using a GoPro Helmet Mount while skydiving. One of the divers had his bridle tangled in another diver’s GoPro camera (bridle is part of the parachute extraction mechanism).

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How To Build A DIY Eyelighter

diy-eyelighter-09

I’m always looking to add new light modifiers to my home studio but name brand products are often too expensive. I still cannot justifies a big expense for a single look so $300 for the Wescott Eyelighter was not a reasonable purchase for me. Plus looking at the components I felt it could be made for pennies on the dollar, look almost as nice and most importantly give me similar results. Being the handy man type I’m prone to DIY just about anything and as long as my wife doesn’t complain about the look or build quality. She’s happy, I’m happy; such is life. And since I’m the spender in this family keeping her happy is my path to more gear.

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Watch: A GoPro Gets SLo-Mo Scorched In Flames During A Failed Rocket Test

rocket-launch-03

Copenhagen Suborbitals is the kind of project we like. They are a non-profit, DIY-driven, Arduino-powered project “working towards launching a human being into space, and bringing him safely back to earth“. This is interesting because most projects I know of only care about the getting to space part, and leave the safety back bit.

One of the development phases involves building a rocket engine. It would be a simple task, it is not rocket science after all…

Wait, it is rocket science. This is why every step is tested again and again to insure it is working. On August 20th, the team did a static test for their HEAT2X Engine (one that does not try to lift a rocket into air) and luckily had a GoPro 3 camera strategically placed right under the engine. The footage show an inferno on earth in 240 FPS.

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The Westcott Eyelighter Will Give Wonderful Eyes. In Camera

eyelighter-02

One of the holy grails of beauty retouching is perfect eyes. Actually, getting good lighting on the eyes would probably be one of the first things you would lean in a beauty retouching workshop, maybe after perfecting skin. One of the “secrets” to getting good light on the eyes is getting a slight moon-shaped highlight on the bottom of the eye. Dave Piper covered that a while back on his eye’s retouching tutorial, but what if you wanted to get this in camera?

I just stumbled upon this great lighting modifier over at Neil van Niekerk’s Tangents blog. It is called the The Eyelighter and only does one thing, but it does it well: It provides a light that gives an arched reflection in the eye.

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DIY: Slider (With Bearings) For Under $100

bearings-slider-01

Time and again we show our love for sliders as creative tools. They provide some sweet production value at little cost and effort. Now most DIY sliders that we feature here are either friction based (with the build trying to minimise friction) or aligned-skating-wheels based. It is kinda rare to see a build with the smoothness of bearings. And this one by Jones Oliver is under $100.

With more and more people turning into makering, more maker-dedicated shops are popping around and Jones mostly used the parts from one of those stores for his build:

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