Rojhan Offline Upload & Sell: Off
|
My "black dot" experience.
- I had to fight to get them to appear
- HTP on, ALO on, NR off
- ISO 3200
- Evaluative metering
- Shooting RAW + .jpg/large/fine
- 35mm/1.4L and 200/2.8L primes
- Lightroom 2.1 on Vista Home Premium, 64-bit Intel
I first tried some outdoor Christmas lights at night (handheld), then a test arrangement of lights spanning a matte black and a white background indoors with lights off at night (tripod), both with the 35mm at 1.4, and finally another night shot with the 200mm at 2.8 on a tripod. I shot -1, 0, and +1 EC. I didn't test with HTP or ALO off although I haven't used either one other than for testing.
- Nothing obvious with the handheld shots.
- A handful of dots with the 200mm.
- Almost all of the dots were on green lights
- More obvious at longer exposures (max exposure was 1/2 second)
- I didn't see any on white lights.
- Dots were 1 or 2 pixels
- Cranking up exposure/curves, and they appear to not actually be black, just dark
- I had to look at 300% to find them, then I could see them back at 100%.
I actually had a more noticeable (but still minor) issue with lens/UV filter reflection. CA and fringing were much more noticeable than black dots.
While I'd still like a "perfect" camera/sensor, I'm not going to break down Canon's door for a refund or replacement.
|