xpatUSA

xpatUSA

Lives in United States Bellville, TX, United States
Works as a Retired Engineering Consultant
Has a website at tcktek.blogspot.com
Joined on Dec 15, 2011
About me:

Mostly interested in Foveon technology.

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Snapshot of threads updated recently in which you have recently participated.

Subject Forum Last post
Not really seeing the "medium format" quality from my DP1Q? Sigma Camera Talk 59 min ago
Traded my DP1m for Ricoh GR Sigma Camera Talk 3 hours ago
Heads up on bad viewfinder for DP2 on eBay Sigma Camera Talk 3 hours ago
A question on CDAF autofocus and average contrast Photographic Science and Technology 3 hours ago
Shooting the Card Photographic Science and Technology 19 hours ago
Wet Cleaning an SD1m Sigma Camera Talk 1 day ago
Invisible Light Photography Photographic Science and Technology 1 day ago
A few IR from yesterday Sigma Camera Talk 2 days ago
Requesting a couple of Quattro shots . . Sigma Camera Talk 2 days ago
SD1M Classic Blue v. Standard Color Modes Compared Sigma Camera Talk 2 days ago
Bits and Stops Photographic Science and Technology 3 days ago
The last foundry in Kirkintilloch. Sigma Camera Talk 3 days ago
8-16mm Zoom Lens Tip . . Sigma Camera Talk 4 days ago
Any samples from SD Quattro H? Sigma Camera Talk 4 days ago
Possible new raw converter..... Sigma Camera Talk 4 days ago
Broken Glass DP0 Q help Sigma Camera Talk 4 days ago
SD Quattro H lens requirement. Sigma Camera Talk 5 days ago
DCI-P3 Color Gamut Photographic Science and Technology 5 days ago
ir color photography Sigma Camera Talk 6 days ago
Sigma Images and cameras Sigma Camera Talk 6 days ago
Will EMF affect camera electronics? Photographic Science and Technology 1 week ago
Can you read Sigma Merrill/Quattro files in Adobe Camera Raw/LR/Photoshop? Sigma Camera Talk 1 week ago
What is the Dynamic range of the DP0 Quattro? Sigma Camera Talk 1 week ago
What about converting to TIFF? Sigma Camera Talk 1 week ago
SD10, 8-16mm + TuFuse Sigma Camera Talk 1 week ago
What is the 'Just Noticeable Difference' for 2D CIE a*,b* ? Photographic Science and Technology 1 week ago
Low light color at higher ISO on SD1M Sigma Camera Talk 1 week ago
How about cutting the size of X3Fs Sigma Camera Talk 1 week ago
DP2 vs. DP2s - differences? Sigma Camera Talk 1 week ago
Slanted edge to MTF software? Photographic Science and Technology 1 week ago
Sensor dust on non-interchangeable lens cameras Photographic Science and Technology 1 week ago
Quattro Lo-res vs Hi-res comparisons Sigma Camera Talk 2 weeks ago
First ever Sigma OS lens... Impressive Sigma Camera Talk 2 weeks ago
A Few new Images with the 150_600 mm Art lens. Sigma Camera Talk 2 weeks ago
Any SD q or SD h pricing yet? Sigma Camera Talk 2 weeks ago
IR photography, Q vs M, which is better? Sigma Camera Talk 2 weeks ago
Time on your hands, why not stare at the wall ? Sigma Camera Talk 2 weeks ago
Sigma DP2 Merrill versus Sigma DP2 Sigma Camera Talk 2 weeks ago
dawncatcher Sigma Camera Talk 3 weeks ago
EVF on new SD Quattros Sigma Camera Talk 3 weeks ago
USB Cable Question Sigma Camera Talk 3 weeks ago
How to compare lens MTF across different sensor sizes? Photographic Science and Technology 3 weeks ago
Surprise Sigma Camera Talk 3 weeks ago
I've ordered a Sigma Compact DSLR . . Sigma Camera Talk 3 weeks ago
AA filter - sample frequency Photographic Science and Technology 3 weeks ago
Gloomy... Sigma Camera Talk 3 weeks ago
Pixel counts and CoC Photographic Science and Technology 3 weeks ago
Untitled Sigma Camera Talk 3 weeks ago
Blotching and Wavelet Processing Sigma Camera Talk 3 weeks ago
To brighten your day! Sigma Camera Talk 3 weeks ago