Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-21-2016, 01:35 PM   #16
Pentaxian




Join Date: Jan 2011
Location: New York
Posts: 3,018
QuoteOriginally posted by mattipuh Quote
Stupid question, but its unclear for me so thought asking.
Will setting with less resolution provide better dynamic / better high iso performance.?

As you cannot choose resolution when shooting in RAw guessing answer is no..?
Setting the camera to lower resolution JPG will not reduce noise, but if you zoom 1:1 it might look like less noise because pixels are being combined/averaged.

For the best noise processing options, shoot in raw, apply noise reduction in your preferred processing software, then save at whatever final resolution you need. If your image looks too noisy you can adjust the noise settings.

02-21-2016, 01:39 PM   #17
Site Supporter
RGlasel's Avatar

Join Date: Sep 2013
Location: Saskatoon
Photos: Gallery | Albums
Posts: 1,242
QuoteOriginally posted by SteveM Quote
If raw is truly raw, we shouldn't be able to tell the difference in a shot taken by two manufacturers provided the same sensor is used (or possibly the same MP and physically sized sensors.)?
It's not, the data coming from the sensor has been electronically modified by the image sensor's own circuitry and the camera's processor modifies that data before storing it in a particular RAW file format.
QuoteOriginally posted by SteveM Quote
I would have liked to know why that camera is performing better than the others, as it seems to go against the point of the article.
I'll give Northrup the benefit of doubt and suggest that he doesn't know why that camera performs better, but honestly believes he doesn't have to know why to be able to make his generalizations.

It's like the parable about the blind men and an elephant. Frankly, these experts are a bigger source of noise than the camera sensors they review.
02-21-2016, 02:39 PM   #18
Senior Member




Join Date: Dec 2012
Location: Pekin, IL
Posts: 207
QuoteOriginally posted by SteveM Quote
. . . In the section that speaks to ISO scores and the stops relative to the average across cameras, the D4s shows better performance but the only explanation is "well that's a $7,000 camera". . . .
At 11:28 in the video, you mean?
QuoteOriginally posted by SteveM Quote
. . . I would have liked to know why that camera is performing better than the others, as it seems to go against the point of the article.
The Nikon d4s is only 16 mp for a full frame camera, so it is very close to the Sony in terms of pixel density. I'd imagine he doesn't have one so he can't do the side-by-side comparison questioning the 1/3 stop difference that DXOmark measured, hence his comment that it's "a $7,000 camera." There are a lot of things a camera manufacturer can do with raw in the firmware to make low-light output artificially look good.
QuoteOriginally posted by rglasel Quote
. . . I'll give Northrup the benefit of doubt and suggest that he doesn't know why that camera performs better, but honestly believes he doesn't have to know why to be able to make his generalizations. . . .
Or he didn't want to drop $7,000 on a one-trick pony. (My opinion, not his.)
QuoteOriginally posted by rglasel Quote
. . . It's like the parable about the blind men and an elephant. Frankly, these experts are a bigger source of noise than the camera sensors they review.
I would rather say that you can't trust all experts, but I've not found a problem with Tony Northrup yet. You do have to be really choosy about anything you find on the Internet, especially in expert sites and forums. It greatly reduces the utility of the Internet if you insist on not believing what anyone says about anything. Common sense and listening to many so-called "experts" will usually glean the truth from the noise, just as combining multiple pixel sites will improve the signal-to-noise ratio of your photo.
02-21-2016, 06:44 PM   #19
Loyal Site Supporter
SteveM's Avatar

Join Date: Jan 2009
Location: Vancouver Island, BC, Canada
Photos: Gallery
Posts: 3,295
QuoteOriginally posted by fredralphfred Quote
At 11:28 in the video, you mean?
Yes

QuoteOriginally posted by fredralphfred Quote
The Nikon d4s is only 16 mp for a full frame camera, so it is very close to the Sony in terms of pixel density. I'd imagine he doesn't have one so he can't do the side-by-side comparison questioning the 1/3 stop difference that DXOmark measured, hence his comment that it's "a $7,000 camera." There are a lot of things a camera manufacturer can do with raw in the firmware to make low-light output artificially look good.
I was deliberately treading carefully in my previous posts as I know that it's become a contentious issue in some other threads. I shoot mainly with Pentax (K7, K5 and K3) but also have a Df (which has the older D4 sensor) that I use for low light work. I'll be very interested to see how the sensor in the K1 performs...

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!
aperture, camera, iso, lenses, light, noise, pentax help, photography, pixel, pixels, resolution, sensor, sizes, troubleshooting
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
What's the deal with K-3 poor high ISO performance Stavri Pentax DSLR Discussion 49 08-21-2014 03:02 PM
f/2.8 zooms and new sensors with good high-ISO performance cyberjunkie Pentax SLR Lens Discussion 11 06-09-2014 08:51 AM
Does lowering mp in k3 help to equal k5iis high iso performance? lightbulb Pentax K-3 18 06-09-2014 02:03 AM
High ISO, noise and better lenses fgaudet Pentax DSLR Discussion 3 02-23-2014 09:29 PM
Better high ISO performance on "K20D"? switters Pentax News and Rumors 39 12-02-2007 01:06 PM



All times are GMT -7. The time now is 06:07 PM. | See also: NikonForums.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