xpatUSA

xpatUSA

Lives in United States Bellville, TX, United States
Works as a Retired Engineer
Has a website at kronometric.org
Joined on Dec 15, 2011
About me:

Mostly interested in Foveon technology.

Recent activity

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

Subject Forum Last post
Prints larger than 20x30 from sd quattro h Sigma Camera Talk 2 min ago
Initially a bit of a mystery. What do you think might be behind it? Sigma Camera Talk 1 hour ago
Sigma SD1M vs Sigma SDQ Sigma Camera Talk 1 hour ago
Death of Beautiful Rendition and 3D Pop on Modern Lenses Article ? Sigma Camera Talk 1 hour ago
Oh NOOOOOOOOOOOOOOOO! Sigma Camera Talk 2 hours ago
Quattro SD/H Which Lens 70-200f2.8 or 50-100F1.8 ? Sigma Camera Talk 2 hours ago
SDQ Dynamic Range Sigma Camera Talk 2 hours ago
80D 18-55 vs Quattro Sd 30mm kit, Studio Pics included. Sigma Camera Talk 4 hours ago
Photographic Portraiture Award Sigma Camera Talk 4 hours ago
How do you Prove Foveon Image Quality is Higher than Bayer? Sigma Camera Talk 8 hours ago
Another stupid DP2M/SD1M/SDQH comparison Sigma Camera Talk 15 hours ago
Anyone Shooting with a SDQ and 17-50mm EX OS HSM glass Sigma Camera Talk 1 day ago
Sigma SD1 Merrill vs Sony A65 part 2 Sigma Camera Talk 1 day ago
Sigma 14mm F2.8 Asph Sigma Camera Talk 1 day ago
We are all pixel peepers, right? Sigma Camera Talk 2 days ago
Quattro SD Manual Mode in Studio but EVF too Dark ? Settings ? Sigma Camera Talk 3 days ago
SDQH vs 5DSR Sigma Camera Talk 4 days ago
My review of the Sigma SD Quattro - Its special Sigma Camera Talk 5 days ago
What is the "correct" exposure? Photographic Science and Technology 5 days ago
Faking the "foveon look" Sigma Camera Talk 5 days ago
Just received Quattro Sd , Have questions Sigma Camera Talk 5 days ago
SD Quattro AWB in X3F vs DNG modes Sigma Camera Talk 6 days ago
Sharpening A Merrill Photo In GIMP 2.8.18 Sigma Camera Talk 6 days ago
Preservation of detail: The Foveon Advantage (Show us your examples) Sigma Camera Talk 1 week ago
Sigma SD Quattro body and SA mount lenses For Sale and Wanted 1 week ago
Lens Rentals tests the new 24-70 Sigma Camera Talk 1 week ago
Anyboy have a Resolution Comparison Quattro h vs other 24mp Cameras? Sigma Camera Talk 1 week ago
GFX - aliasing Photographic Science and Technology 1 week ago
New computer? Sigma Camera Talk 1 week ago
Comparison of Images with Different Sensor Pixel Pitches. Photographic Science and Technology 1 week ago
Via Lactea - Sigma SD1 Merrill + Sigma 18-35 Art Sigma Camera Talk 1 week ago
Idea for a lens collective . . . Sigma Camera Talk 1 week ago
If only SPP could crop... Sigma Camera Talk 1 week ago
The Piccure+ detail slider Sigma Camera Talk 1 week ago
SD Quattro Ultrawide Options Sigma Camera Talk 2 weeks ago
There is something wrong with this bird Sigma Camera Talk 2 weeks ago
Pix for the Week Ending July 7th to 9th, 2017 Sigma Camera Talk 2 weeks ago
Affordable Sigma SD H lenses substitute possible? Sigma Camera Talk 2 weeks ago
New to SPP on macOS - help requested Sigma Camera Talk 2 weeks ago
Piccure+ and older lenses Sigma Camera Talk 2 weeks ago
Microfocus tuning (or how to recognize the sharpest picture without looking at it) Sigma Camera Talk 2 weeks ago
Accidental Inspiration Sigma Camera Talk 3 weeks ago
Saving X3F files to the cloud Sigma Camera Talk 3 weeks ago
SD Q H Monochrome versus Monochrome Blue Layer Sigma Camera Talk 3 weeks ago
Best lenses for Quattro H Sigma Camera Talk 3 weeks ago
Which version SPP for the DP123 bodies now, please Sigma Camera Talk 3 weeks ago
Need ‘peer review’ of simplified DOF formula Photographic Science and Technology 3 weeks ago
More Light Relief . . Sigma Camera Talk 3 weeks ago
Fireworks in Wells Branch Texas Sigma Camera Talk 3 weeks ago
Blooming tree Sigma Camera Talk 3 weeks ago