|
Forum: Pentax K-1 & K-1 II
10-14-2017, 12:46 AM
|
| |
As usual, these days, DPReview just regurgitated news from somebody else.
The original news came from PetaPixel.
Hot on the heels of the anomaly (almost two years after it happened...), DPReview now started their own "investigation" by contacting DxO. It would be funny, if it weren't so sad.
The actual explanation by DxO ("too busy to finish the review") is a joke and a half as well. They could have told us that a long time ago. Trust DPReview to take the statement at face value and argue the explanation dispels any conspiracy theories. Oh, boy...
|
|
Forum: Pentax K-1 & K-1 II
09-18-2016, 11:14 PM
|
| |
He said much more than that.
He said that their methodology is broken because the light source they are using lacks power in the blue part of the spectrum and that that's the reason why their resolution figures are bogus.
Changing from halogen light (or even incandescent light) to sunlight does not provide a 10MP vs 100MP difference as he suggested.
|
|
Forum: Pentax K-1 & K-1 II
09-18-2016, 08:06 AM
|
| |
Was it perhaps this sentence from the description of colour sensitivity measurements:"Typically, with a tungsten illuminant, the blue sensitivity is very low, due to the weak sensitivity of silicon in short wavelengths and the lack of short wavelengths in tungsten light." ?
That sentence just states a fact, as opposed to describing their process.
I cannot confirm that and unless you can backup your serious allegation (use a wayback archive or similar) I will regard your statement as a baseless contention.
We may not agree with DxOMark's idea of a single score for a complex performance (a questionable practice for sure) and/or the weightings that DxOMark uses to obtain that single number, but you surely cannot accuse them of not knowing what they are doing, or using inadequate procedures.
DxOMark's procedures are well thought out and there is no better alternative anyhow. To preempt your counterargument: No, (unscaled) test shots under varying conditions with undefined focus targets are not a substitute.
|
|
Forum: Pentax K-1 & K-1 II
09-18-2016, 02:07 AM
|
| |
| |
