Category: Teardowns and Disassembly
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Silent Changes
Every so often I get an email asking me to jump in on some forum argument or other. I rarely do that because of the language barrier.
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Sigma 120-300 f/2.8 Part II: Comparative Anatomy
We know the optical formula for the new version of this lens is the same as the old version. We know it has the ability to be reprogrammed and adjusted with the new Sigma dock and Optimization Pro Software. We know there have been some changes to the mechanics and structure of the lens, but we…
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Really Getting In Touit
A couple of weeks ago I posted my impressions of the Zeiss 32mm Touit lens for NEX cameras, based on a copy loaned to me by Zeiss, USA. Now that we have our own copies I can be, shall we say, a bit more aggressive in examining the lens. Not to mention getting an opportunity to continue my string of…
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First Look: Rokinon 24mm f/3.5 Tilt-Shift – Part 2.
When we optically tested the RokiBowYang tilt shift, I mentioned that my recommendation was tempered by wanting to see how it was built. Parts and repairs, at least in the U. S., are nonexistent and the price is a bit high for me to consider it a disposable, like the 14mm RokiBowYang. So first…
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How a Ballhead Works
This will probably be of limited interest to most of you, but we like to know how things work, not just how well they work. Since we haven’t had any lenses or cameras to take apart lately, we thought we’d take a couple of pictures when we disassembled a ballhead in case any of you were interested.…
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24-70mm f/2.8 Lens Teardown Comparison
Warning: This is strictly a Geek article. If you don’t like looking at lenses’ insides, there’s absolutely nothing of interest for you here.
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A Peek Inside the Canon 24-70 f/4 IS
If we knew what we were doing it wouldn’t be called research, would it? Albert Einstein**
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A Peek Inside the 6D
Of course we had to do it. We tried limiting ourselves to some size comparisons with the 5D II and 5D III.
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Panasonic Pancake Dissections
Panasonic makes an excellent pair of micro 4/3 pancake lenses, the 14mm f/2.5 and 20mm f/1.7. While they look similar, there are several differences.
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A Peek Inside the Canon 24-70 f/2.8 Mk II
You probably know we got 5 copies of the Canon 24-70 f/2.8 II today and did some resolution testing before they all shipped out. If you read this blog often, you probably know that Aaron and I gave every lens a careful shake, peered inside, and generally looked for any possible excuse to open one…
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The Olympus 75mm f/1.8 is Expensive Because It’s Worth It.
The first Olympus 75mm f/1.8 m4/3 lens arrived today, courtesy of Tyler’s connections with the King of Siam or wherever it is he gets these things. I had to test it, of course, because that’s what I do. I hadn’t planned on writing about it; the lens has already been reviewed thoroughly at…
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Optically Adjusting a Lens
I write a lot about the fact that every copy of a lens is slightly different than every other copy. Now don’t get me wrong: I’m talking slight differences that are barely detectable, not good or bad.