Go to a  "printer friendly" view of this message which allow an easy print Printer-friendly copy Go to the page which allows you to send this topic link and a message to a friend Email this topic to a friend
Forums Lobby GET TO KNOW YOUR CAMERA & MASTER IT Nikon D7100, D7000 (Public) topic #22815
View in linear mode

Subject: "RE: Motion Blur Experiment on D7000" Previous topic | Next topic
jbloom Gold Member Awarded for the continuous and generous sharing of his high level expertise and his always encouraging comments in several forums. Nikonian since 15th Jul 2004Wed 26-Dec-12 07:32 AM
6161 posts Share on Facebook Share on Twitter Share on Linkedin    Click to send email to this author Click to send private message to this authorClick to view this author's profile
#9. "RE: Motion Blur Experiment on D7000"
In response to In response to 7


Wethersfield, US
          

I don't think the pixel density really enters into it much. The issue is the amount of motion of the object as a percentage of the size of the final output image (print). Whether the image was captured on a 16-MP camera or a 12-MP camera, if the object (nail, player) moves far enough while the shutter is open to make a discernible blur on the image, the camera will capture and reproduce that blur. At some really low pixel density the motion blur would get lost in the sensor resolution, but that would be at much lower resolutions than any modern DSLR provides.

If your 3.5 MPH speed calculation is correct, that means the nail in your experiment moves about a tenth of an inch in 1/500 second. (Which looks about right from viewing your images.) Your frame is about 30 inches wide at the subject distance, so that 0.1-inch motion represents about 0.33% of the width of the frame.

If the width of the print is 16 inches, that 0.33% means the size of the blur will be about 1/20 inch. Small, but not invisible. Enough to take away a bit of crispness.

As for sensor resolution, 0.33% of the width of a D700/D3 12-MP sensor is over 9 pixels on the short dimension of the frame (i.e., portrait orientation), so those sensors are easily capable of resolving that motion. (I assume you would be using a lens that gives the same FOV on FX.) 0.33% is over 6 pixels even on a D70 and over 5 pixels on a D2H, still quite enough to be resolved. So your point that 1/500 is marginal for motion-stop basketball shooting with large prints remains true regardless of which body is in use.

-- Jon
Wethersfield, CT, USA
Connecticut High School Sports Photos

  

Alert Printer-friendly copy | Reply | Reply with quote

This is a hot, active topic!Motion Blur Experiment on D7000 [View all] , Danbie , Tue 25-Dec-12 03:29 AM
 
Subject Author Message Date ID
Reply message RE: Motion Blur Experiment on D7000
dm1dave Administrator
25th Dec 2012
1
Reply message RE: Motion Blur Experiment on D7000
jbloom Gold Member
25th Dec 2012
2
Reply message RE: Motion Blur Experiment on D7000
PAStime Silver Member
25th Dec 2012
3
Reply message RE: Motion Blur Experiment on D7000
Danbie
25th Dec 2012
4
     Reply message RE: Motion Blur Experiment on D7000
PAStime Silver Member
26th Dec 2012
5
          Reply message RE: Motion Blur Experiment on D7000
FrankL0 Silver Member
26th Dec 2012
8
               Reply message RE: Motion Blur Experiment on D7000
PAStime Silver Member
26th Dec 2012
10
                    Reply message RE: Motion Blur Experiment on D7000
FrankL0 Silver Member
27th Dec 2012
18
Reply message RE: Motion Blur Experiment on D7000
Floridian Silver Member
26th Dec 2012
6
Reply message RE: Motion Blur Experiment on D7000
Danbie
26th Dec 2012
7
     Reply message RE: Motion Blur Experiment on D7000
jbloom Gold Member
26th Dec 2012
9
          Reply message RE: Motion Blur Experiment on D7000
Danbie
26th Dec 2012
11
               Reply message RE: Motion Blur Experiment on D7000
briantilley Moderator
26th Dec 2012
12
               Reply message RE: Motion Blur Experiment on D7000
Danbie
26th Dec 2012
13
                    Reply message RE: Motion Blur Experiment on D7000
briantilley Moderator
26th Dec 2012
14
                         Reply message RE: Motion Blur Experiment on D7000
jbloom Gold Member
27th Dec 2012
16
                              Reply message RE: Motion Blur Experiment on D7000
Danbie
27th Dec 2012
20
                                   Reply message RE: Motion Blur Experiment on D7000
briantilley Moderator
27th Dec 2012
22
               Reply message RE: Motion Blur Experiment on D7000
jbloom Gold Member
27th Dec 2012
15
                    Reply message RE: Motion Blur Experiment on D7000
PAStime Silver Member
27th Dec 2012
19
                         Reply message RE: Motion Blur Experiment on D7000
Danbie
27th Dec 2012
21
                              Reply message RE: Motion Blur Experiment on D7000
PAStime Silver Member
27th Dec 2012
23
                                   Reply message RE: Motion Blur Experiment on D7000
Fabien65
29th Dec 2012
24
Reply message RE: Motion Blur Experiment on D7000
J_Harris Silver Member
27th Dec 2012
17

Forums Lobby GET TO KNOW YOUR CAMERA & MASTER IT Nikon D7100, D7000 (Public) topic #22815 Previous topic | Next topic


Take the Nikonians Tour and learn more about being a Nikonian Wiki /FAQ /Help Listen to our MP3 photography radio channels Find anything on Nikon and imaging technology - fast!

Copyright © Nikonians 2000, 2014
All Rights Reserved

Nikonians®, NikoScope® and NikoniansAcademy™ are trademarks owned by Nikonians.org.
Nikon®, Nikonos® and Nikkor® are registered trademarks of Nikon Corporation.