The first part of this Tech Tips post from Chuck Westfall explains a little bit of the mechanics of a constant-aperture zoom lens. I found it an interesting read when it was first posted in 2009.
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Ok, you got me on this one...
Why in the world would Walgreens care if your pics were 'professional' or not, and have you sign forms...?
Not doubting that your images looked great, but just baffled why Walgreens would have you sign something?
What is the advantage of EF-S glass?
I have heard that crop sensors have better focus in the middle of the lens on an EF mount. Does this mean it can take full advantage of the entire lens in an EF-S type mount?
Download a free trial of Photomatix.
It is one of the most adjustable apps out there, and thus easy to overdo with. I have tried CS5/Nik, but they seem a bit too flat to me. Photomatic can do both flat and surreal versions well.
SO d700 is a separate series from the d800? does that mean that will will see a d710 and d810? Cause if they just go and make a d900, then they run out of names again.
If not confusing, then at least inefficient and kinda odd.
How would landscape photographers benefit from IS? I would think this is the market which would be most likely to use a tripod, and least likely to use IS.
Just noticed in the specs that this camera doesn't shoot video... that's actually quite a shock, I've been using video mode on my 7D to shoot little videos of Jupiter etc so it's a shame that a dedicated astrophoto camera isn't capable of shooting video... for the price I would think video capability is a just a given nowadays? leaving it out and still charging that much? sure it's IR capable now but that modification isn't as costly as putting video in... hmm...