Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
08-19-2012, 02:17 PM - 1 Like   #16
Pentaxian
Not a Number's Avatar

Join Date: Mar 2012
Location: Venice, CA
Posts: 3,894
From the manual Green mode reverts to Av mode with non-A lenses or an "A" lens not set on "A". Otherwise the camera uses the "Auto" program-line. I don't know what exposure settings the Auto program-line controls. You probably had the sensitivity set to "Auto" before. Av mode should only expose correctly with non-A lenses when the lens aperture is set wide open.

M42 lenses or a K-mount lens with the diaphragm lever removed may expose correctly in Av mode when stopped down. However, I've noticed as much as 1.5 stops difference vs the exposure selected in stop-down manual metering with a M42 lens (Pentax OEM adapter).

A K-mount lens with the diaphragm lever intact in Av mode would set an exposure as if the lens were always wide open. When you take the picture the lens will stop-down and your image should be underexposed by however many stops you set the aperture from the widest setting.

Removing the lever (I've been told) on most lenses can be done easily and reversibly with a little dis-assembly. Cutting the pin off lowers the resale value (at least to fellow Pentaxians).

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!
helios, lens, mode, pentax help, revuenon
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
pictures have blue tint in every mode but green mode pearsaab Pentax K-5 7 01-23-2012 06:13 AM
K-x: Can Aperture be set in Green Mode? Edmund Troubleshooting and Beginner Help 4 06-15-2010 08:21 AM
Sears lens with PK on aperture ring (K mount??) jqjones Pentax SLR Lens Discussion 3 02-16-2010 10:20 PM
Use of Aperture-Ring 43mm/1.9 -> no aperture data Deimo Pentax SLR Lens Discussion 7 06-24-2009 03:25 PM
using an aperture ring lens on the K100D Super burntsienna Pentax DSLR Discussion 3 02-25-2009 02:10 PM



All times are GMT -7. The time now is 06:22 AM. | 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