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by clabacchio

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1,422 reputation
1134
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location Redmond, WA
age 23
visits member for 3 years, 8 months
seen Jun 30 at 1:02

I'm a Microsoft Software Development Engineer on the Trustworthy Computing Team. I've worked at several security related places previously, including Malware Bytes and PreEmptive Solutions.

On StackOverflow I mostly answer related questions, though I occasionally forray into and a couple of others.

I am the author of pevFind, a component of the ComboFix malware removal tool, and volunteer at BleepingComputer.com as a malware response instructor. My Twitter account is @MalwareMinigun.


Jun
13
comment Is there any significant difference between Nikon and Canon?
At what level would you consider a "lower level" body "dumbed down"? D3XXX level? D5XXXX level? My D7000 certainly does have a DoF preview button...
Jun
6
comment Is it still necessary to stop a lens down on an APS-C camera?
You might want to mention that many lenses are APS-C specific (e.g. Nikon DX Nikkors), so the image circle thing does not apply here. This answer is strictly about shooting with a full frame lens on a crop sensor camera.
Apr
17
comment Is “Ultrapixels” just marketing or is there a real benefit?
Brian Klug did a comprehensive analysis of this here -> anandtech.com/show/6747/htc-one-review/4 . (You may also want to look at the more general analysis of smart phone cameras here anandtech.com/show/6777/… )
Apr
17
comment Is “Ultrapixels” just marketing or is there a real benefit?
@Beltrame: Also, downsampling the image can remove noise from the image. But it can't un-blur an image or make an image that is completely dark into a bright image. Binning the pixels doesn't increase the sensitivity of the individual pixels.
Dec
31
comment What do the AF-A, AF-C, and AF-S autofocus settings mean?
At least on the D7000, this is configurable. The default behavior of AF-S is to wait for a lock because it is intended to shoot stationary subjects. But you can override this and force the camera to take the shot anyway by holding the AF-LOCK button (or you can change how this works completely).
May
31
comment Why is aspheric glass expensive?
@mattdm: That article is the best answer I've seen yet.
May
31
comment Why is aspheric glass expensive?
@dpollitt: I saw and responded to that comment in that question. That doesn't make sense -- paraboloids and hyperboloids can be ground using simple circular motions too, because they're still symmetric with respect to the center axis of the lens. (Hence my confusion)
May
31
comment Why is aspheric glass expensive?
Putting the glass on a lathe-like device though is sufficient -- it's not like aspheric designs are asymmetric with respect to the center axis. Sure, you could get a "round" pot by hand, but perfectly spherical? Even spherical elements are ground to much much much higher levels of precision than are possible by hand.
May
30
comment How does a spherical lens differ from an aspherical lens?
Erm, why can't they be ground by a natural rotary motion? Aspheric lens elements are still symmetric across the center axis; so any technique that works for spheres should work for paraboloids as well.
Mar
1
comment How can I turn off the loud sound my D3100 produces when I take a photograph?
Duplicate: photo.stackexchange.com/questions/3301/…
Feb
29
comment How can I improve shots in the dark, when tripod or flash are not available?
I wish it was tungsten light :( Sodium lighting sucks! +1
Feb
29
comment How can I improve shots in the dark, when tripod or flash are not available?
Monopod won't help; it has the same problem the tripod does (even if the camera isn't moving, the players are)
Jan
13
comment Could a filter damage the curved front element of the Canon EF 100mm f/2.8 Macro USM?
Before using a UV filter just for protection, you may want to consider photo.stackexchange.com/questions/1393/… photo.stackexchange.com/questions/57/… and lensrentals.com/blog/2008/10/front-element-scratches
Nov
19
comment Is there any significant difference between Nikon and Canon?
Lol -- I suppose this would matter if one has multiple cameras. it's going to be quite some time before I end up there; though I can see how that might be a problem. Was it common to have cameras from several brands in those days?
Nov
15
comment Why do my photos look better on an iMac?
@jrista: Dell's Uxxxx displays (at least, the U2711 and U3011) are CCFL displays, and they all have 96% (Adobe). (Reference: anandtech.com/show/2922/3 )
Aug
28
comment Is it possible to make a 35mm digital camera with the same size / weight / price as a 35mm film camera?
Keep in mind that the effective cost of the film camera is much larger; both in shots you lose due to reloading film, and because you've got to pay to develop and print the film. At one night of one event I took ~500 shots. Assuming $2 for a roll of 24 shots, 2*(500/24) = $42, just for one night. If you use DSLRs towards the end of their useful life (~150,000 exposures), that would be about $12000 in film costs, not even counting developing. $6 camera isn't the whole story.
Aug
10
comment Which second-hand lens for under $1k would be best for taking pictures of distant birds?
W.r.t. your flower photo, that doesn't sound like a lens issue; it sounds like that part of the image was just out of focus. When zoomed in to 200mm your depth of field gets smaller. Post that image as an example and you'll probably get good suggestions here.
Aug
5
comment what are the minimum requirements for the camera to be UHS 1 compatible?
Erm... 1.9 frames per second * 35MB RAWs == 66.5MB/s -- almost 50% more than Sandisk specifies for the card. I don't think the camera is the bottleneck here.
Aug
5
comment How can I get the right exposure when parts of the scene are in the shade and others are in the sun?
Once it goes pure black there's nothing you can do either. It's just that pure white is usually more attention grabbing than pure black is.
Jul
30
comment What tool produces better quality jpeg: Lightroom or Imagemagick?
Note that 100% quality in lightroom often results in 5 to 10 times file size increase with no visible change in image quality.