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  1. C

    "weather sealed" != "impervious to salt water"

    Just read this on PetaPixel: http://petapixel.com/2016/02/05/shooting-a-winter-storm-killed-my-canon-7d/#more-202201 I don't understand how anyone can be so incredibly stupid. This misconception has been hashed out many times before: "weather-sealed" does not mean that you can let ocean...
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    Yet another backpack advice thread

    Okay, I'm hoping someone can point me in the right direction. I basically need a bag that will fit: [list type=decimal] A 15" Mackbook Pro (Retina) 5D2 body 85/1.2L II, 35/1.4L Random accessories (cables, batteries, maybe a Speedlite or a third lens) [/list] It needs to be a light bag with...
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    fast f-numbers

    A recent article from Petapixel about the fastest f-number theoretically possible inspired me to make the following observations about the relationship between f-number and light-gathering ability. Recall that the f-number is defined as the ratio of the distance between the image plane and the...