Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
04-14-2018, 01:19 PM - 1 Like   #1

Join Date: Oct 2006
Location: PNW USA
Photos: Gallery
Posts: 2,017
Detailed explaination of Exposure

I just looked at the video from this web site that goes into a technical discussion of Understanding Exposure. Some, if not most, of the photo geeks on the site will really enjoy it.

A deep dive on the science behind exposure and metering

Please note: I have followed the Phoblographer for a few years now. They really don't care for Pentax all that much and the site's owner is casts himself as a film geek. Some of the articles, like this one, are interesting and some, in my opinion, are a little trivial.

Anyway, enjoy this one.

04-14-2018, 09:11 PM   #2
Loyal Site Supporter
Loyal Site Supporter
GUB's Avatar

Join Date: Aug 2012
Location: Wanganui
Photos: Gallery | Albums
Posts: 4,214
I sincerely hope not too many students have been exposed to this guy!! They would probably end up not being able to tie their bootlaces. Far too unnecessarily complicated and out right wrong. It was right in the film days but in digital Iso is not a measure of sensitivity and the exposure triangle is dead. Only 2 inputs create the signal - shutter and aperture. Iso merely amplifies what you have achieved. Starve your sensor of light via shutter/aperture and your image degrades - full stop.
Yes EVs are a good unit to understand and they demonstrate how simple exposure really can be - superbright sunny day on beach or snow - EV16 --- Moonlight landscapes minus3 EV. So in the real world about 19 stops you are likely to encounter -- you can damn near guess the EV.
04-15-2018, 02:07 PM   #3

Join Date: Oct 2006
Location: PNW USA
Photos: Gallery
Posts: 2,017
Original Poster
Perhaps you should check out the other videos by "this guy".

You might learn something.

  • 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!
exposure, photography, site
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Detailed specs of Pentax K-70 Mistral75 Pentax News and Rumors 423 02-28-2017 02:47 PM
Detailed Information Request Kerrowdown Troubleshooting and Beginner Help 7 01-09-2017 09:35 PM
Macro Eye, detailed ZeljkoS Post Your Photos! 4 12-14-2016 04:56 AM
645Z firmware update and menu system detailed review Fatlind Pentax Medium Format 2 10-05-2016 03:28 AM
Some explaination of RAW vs Jpeg benifits. Peter Zack Post-Processing Articles 40 01-12-2013 04:46 PM

All times are GMT -7. The time now is 03:50 PM. | See also:, 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?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]