Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-20-2017, 06:54 AM - 1 Like   #1
New Member




Join Date: Sep 2014
Posts: 20
645Z sensor: DxOMark strikes again ...

I read the following on the DxOMark website last night regarding their assessment of the RED Helium 8K sensor:

"REDís prototype Helium 8K sensor has shattered our previous top DxOMark sensor score. With a dramatic jump to 108, it leaps past the only other sensor to have broken the 100 barrier Ė REDís own Epic Dragon prototype (101 points)."
https://www.dxomark.com/Reviews/RED-Helium-8K-DxOMark-Sensor-Score-108-A-new...me-high-score2

"the only other sensor to have broken the 100 barrier" ... really? I seem to recall a certain sensor whose results had been published (leaked?) for a few hours a while back that also broke the 100 barrier. I think the 645Z got an overall score of 101 if I'm not mistaken.

I also remember that we were promised a full fledged review of the Z, but we are still waiting for that. Does someone have any news on a forthcoming DxOMark review of the 645Z, or should we just forget about it?

01-20-2017, 07:00 AM   #2
Zav
Pentaxian
Zav's Avatar

Join Date: Feb 2009
Photos: Gallery
Posts: 1,367
It should be available when the 645ZII will be discontinued.
01-20-2017, 08:31 AM   #3
Pentaxian
Na Horuk's Avatar

Join Date: Feb 2012
Location: Slovenia, probably
Photos: Gallery | Albums
Posts: 11,183
Honestly, Ricoh should put a lawsuit. Isn't there some sort of media law to correct errors, if not the one against lies? Because as silly as DXo is, some people take it as serious as a religion. Some people literally buy and sell their whole system based on those "lab test numbers".

Either way, looks like the results of the 645Z will only be published once 35mm FF DSLRs start hitting those scores, so that Pentax will never be at the top. So we will have to wait a couple more years

And on top of that, they measured their own DXO camera in the special feature (similar to Pixel shift), but did not publish the results of the K-1 with PS used correctly

Last edited by Na Horuk; 01-20-2017 at 09:54 AM.
01-20-2017, 08:47 AM   #4
Forum Member




Join Date: Oct 2010
Location: Jakarta
Photos: Gallery
Posts: 96
It is strange. I remember earlier in the comments section of that DXO review there are at least three complaints regarding the unpublished 645Z review. Now it is gone?! Could someone else confirm this? I hope I'm not imagining things.

01-20-2017, 10:20 AM   #5
Veteran Member




Join Date: Dec 2013
Location: New Jersey
Posts: 909
T

some full frame manufacturers might pay them money to shut off the tests for Sony medium format sensor...

Last edited by starjedi; 01-20-2017 at 11:03 AM.
01-20-2017, 12:26 PM   #6
Site Supporter
Site Supporter
bobbotron's Avatar

Join Date: Jan 2015
Location: Ottawa, ON
Photos: Gallery
Posts: 2,766
It is really weird they don't test the 645D or 645Z.
01-20-2017, 12:35 PM   #7
CDW
Veteran Member




Join Date: May 2011
Location: Big Island, Hawaii & Utah
Posts: 453
DxOMark, like Phase that also produces image processing software, has a biased agenda. No surprise but of little consequence one way or the other. DxO is only known to hardcore enthusiasts. If you asked the average Canikon shooter who never shoots off the Green mode and shoots JPGs only, who/what DxO is all about, you'd get a deer in the headlights look.
01-20-2017, 12:51 PM   #8
Pentaxian
MJKoski's Avatar

Join Date: Aug 2016
Posts: 1,665
Yea this sounds dubious. K-1 with correctly used PS exposure goes well over 100 on that scale. But well, DxO has failed many times before. They are giving bad scores to almost every Zeiss lens due to vignetting which only makes photos look better.

01-20-2017, 01:52 PM   #9
Pentaxian
FantasticMrFox's Avatar

Join Date: Oct 2014
Location: Munich
Posts: 2,325
I'm not someone who's into conspiracy theories, or complains that stuff is being swept under the carpet all the time. When DxO did not release the 645Z's results I was under the impression that they may be in the process of testing a bunch of medium format sensors, and wanted to release the scores together.

Now, after all this time, and the above quotes, I change my mind - they did sweep it under the carpet, because it seems they weren't happy about it. Or because certain corporations they depend on aren't happy about it.
01-20-2017, 10:40 PM   #10
Site Supporter
Site Supporter
Digitalis's Avatar

Join Date: Mar 2009
Location: Adelaide.
Posts: 10,137
QuoteOriginally posted by bobbotron Quote
It is really weird they don't test the 645D or 645Z.
If i had to hazard a guess, it would be because they lacked the technique and skill to get the most out of it.
01-20-2017, 11:10 PM   #11
Site Supporter
Site Supporter
Zygonyx's Avatar

Join Date: Jun 2011
Location: Ile de France
Posts: 3,715
645D had been fully tested and the test published :

https://www.dxomark.com/Cameras/Pentax/645D

"Not having the skills" for a company leading market sounds a bit trollesque....

The reasons behind no-publication for 645Z's test are purely commercial...
01-20-2017, 11:12 PM   #12
Loyal Site Supporter
Loyal Site Supporter
clackers's Avatar

Join Date: Jul 2013
Location: Melbourne
Photos: Albums
Posts: 14,356
And they did test the 645Z, and found outstanding results.

The excuses for not releasing them at the time were like, "Oh, it's August, no one's back at work yet, etc".
01-20-2017, 11:17 PM   #13
Site Supporter
Site Supporter
Digitalis's Avatar

Join Date: Mar 2009
Location: Adelaide.
Posts: 10,137
QuoteOriginally posted by clackers Quote
The excuses for not releasing them at the time were like, "Oh, it's August, no one's back at work yet, etc".
Sounds like they have fostered a healthy work ethic.
01-20-2017, 11:20 PM   #14
Site Supporter
Site Supporter
Zygonyx's Avatar

Join Date: Jun 2011
Location: Ile de France
Posts: 3,715
Yes.

My bet is that they will publish the Z test once GFX and 1D will be tested.
There is no way they will carry on ignoring medium format sensors....
01-20-2017, 11:31 PM   #15
Site Supporter
Site Supporter
Digitalis's Avatar

Join Date: Mar 2009
Location: Adelaide.
Posts: 10,137
QuoteOriginally posted by Zygonyx Quote
There is no way they will carry on ignoring medium format sensors
especially with all the clickbait headlines they have been tossing about recently.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
645d, 645z, barrier, camera, dxomark, medium format, prototype, review, score, sensor
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Aperture Phantom strikes again - Pentax K50 vasi Welcomes and Introductions 11 05-21-2017 09:45 AM
google strikes again? post-Picasa mutations jimr-pdx Digital Processing, Software, and Printing 4 09-01-2016 03:53 PM
Pentax 645Z scores 101 at DxOMark Mistral75 Pentax News and Rumors 249 04-28-2016 10:35 AM
USPS Strikes Again Parallax General Talk 58 03-25-2016 05:26 PM
Pentax 645z in DXOMark 101 points..., is it true? Ventzy Pentax Medium Format 32 01-01-2016 12:08 PM



All times are GMT -7. The time now is 03:27 PM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top