Lives in United States United States
Works as a Student
Joined on Oct 23, 2002
About me:

I study semiconductor devices. I travel and backpack and climb pointy things.


Tamron 17-50 2.8 (all purpose, sharpish, fast enough for most occasions)
Canon 100mm Macro 2.8 (Macro, portrait, tele)
Canon 35 2.0 (lite, sharp, fast, some CA, ok walkaround)
Sigma 10-20 EX (some heft, good build, nice wide)

Panasonic LX3 (lite, small, 24mm, good battery, movies)

Slik Mini Pro Tripod (311g but very short, we will see...)

drwho9437's recent activity

  • Created discussion thread X-PRO2 User notes
    Most people who buy cameras synthesize happiness. This is the observation that when having picked something we like it more than the options we do not have. It is a hard impulse for most to ...
  • Replied in nope
    You are not correct. It is much easier for instance to build a higher resolution A/D that is slower than a fast one. Everything in engineering requires compromises. You might feel that its value ...
  • The print rendering is at most 8-bit... So I doubt that's it. Anything tone mapped to a regular displayable or printable file only contains 8 EV of DR. It might map to 14.8 EV bits it is 8 EV in ...
  • Some are up in arms about 4K rumors. I just want you to know that I would not care a jot if you took movies out of the camera completely. Not one bit. Don't make the engineering compromises on your ...
  • Yes quantization is the converter. 12-bit converter can only have 12 stops of DR range. 10, 10 and 14, 14 at best. That makes the way DxO measure a bit weird, they give the D810 for instance over ...
  • Dynamic range is just the shot noise floor and then the full well charge along with the quantization of the sensor. The full well can in part be estimated by the base ISO. All you have to do is ...
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drwho9437 has not added any gear yet.
Total messages 1985
Threads started 249
Last post 11 months ago
Total comments 31
Total likes 45
Last post Feb 20, 2016
Total reviews 6
Last review Mar 28, 2011
Entries 3
Votes cast 67
Last entry Jul 11, 2009
Photos uploaded 1
Last upload Feb 12, 2011