Spaghetti and Histograms: Exposure to the Right

 Technique  Comments Off on Spaghetti and Histograms: Exposure to the Right
Jul 192015
 

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Imagine I gave you three ingredients to make spaghetti. I gave you the pasta, the marinara sauce, and cheese to top it with. The only catch was that you could only use each ingredient in certain amounts. What if I said you could have either 0, 500 grams, or 1,000 grams of each, but nothing in-between? Well, certainly, you’ll need pasta if you’re going to eat spaghetti, so let’s say you chose 500 grams. Unless you’re a marinara fanatic, twice as much sauce as pasta is going to be way too much. Even 500 grams to match the spaghetti is excessive, but then again, the only other option is no sauce at all. And what about the cheese? That’s going to be a lot of cheese.

The problem, of course, is that it’s not just how much of each ingredient is present that matters, but how much is present relative to the others. What if I gave you finer gradations, say steps of 100 grams each? You could probably make a pretty good approximation of your preferred meal, say 500 grams of pasta, 200 grams of sauce, and 100 grams of cheese. If I gave you 50 gram gradations, you could get even closer. For the record, the ideal meal is 473 grams of pasta, 167 grams of marinara sauce, and 56 grams of cheese.

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fstoppers

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First Official Sample Images From New Sigma 150-600MM F/5-6.3 Sport

 Gear, Technique  Comments Off on First Official Sample Images From New Sigma 150-600MM F/5-6.3 Sport
Oct 012014
 

This new Sigma 150-600mm F/5-6.3 Sport lens looks like a winner. Here are a few sample images!

For more info please click the link below:

slrlounge

httpvh://youtu.be/vWbiCHbvHmw

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Pre Order Now

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HDR Features | Nikon D800 and Canon 5D Mark III

 Gear, HDR Images, HDR Info, HDR Styles, News  Comments Off on HDR Features | Nikon D800 and Canon 5D Mark III
Mar 042012
 

Some of the HDR features of these new cameras from Nikon and Canon will be helpful. For example, The 5D Mark III will do 7 bracketed exposures up from 3 in the 5D Mark II. It will also do an in camera 3 exposure HDR with variable ranges.  In the small sample below the Canon in-camera HDR seems to generate some halo artifacts, though it is hard to tell in such a tiny image. The Nikon D800 and D800E can shoot 2 frames with a single shutter release with a variable range option.  The Nikon D800 is offering 2 to 9 frames in steps of 1/3, 1/2, 2/3 or 1 EV.

Here are a few more details: