Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-21-2009, 06:35 PM   #1
Veteran Member
rparmar's Avatar

Join Date: Jan 2008
Photos: Gallery
Posts: 8,783
Need help: how to set manual mode e-dials

So far I'm liking my K20D, but I've found an annoyance.

I like direct control over ISO, so I've used the custom settings to set the rear e-dial to ISO and the front dial to aperture. I should state that I really only ever use aperture-priority and manual settings. Old habits die hard!

In order to change the settings for manual mode I use "24. e-dial in TAv & M". But for some reason there are only two settings. One allows the front dial to control shutter speed and the back aperture. The other setting is the other way around. Neither setting lets me control ISO. Why is this missing? And why would I want a dial to control shutter speed when you cannot do this with a manual lens in manual mode? The dial becomes useless. Isn't this rather dumb?

I'm hoping that I've missed something obvious. Otherwise the controls are letting me down precisely when I most need to customise them.

02-21-2009, 06:43 PM   #2
Veteran Member
Jodokast96's Avatar

Join Date: Oct 2007
Location: Erial, NJ USA
Photos: Gallery | Albums
Posts: 2,132
Pressing the OK button and either a) turning the front dial; or b) turning the dial controlling aperture will let you change the ISO. I'm just not sure which it is as I have mine set with the front dial controlling aperture.
02-21-2009, 07:04 PM   #3
Veteran Member
Mike Cash's Avatar

Join Date: Jan 2007
Location: Japan
Photos: Gallery
Posts: 6,952
QuoteOriginally posted by rparmar Quote
And why would I want a dial to control shutter speed when you cannot do this with a manual lens in manual mode? The dial becomes useless. Isn't this rather dumb?
Why can you not control shutter speed with a manual lens in manual mode? Perhaps you meant to say that the green button will set the shutter speed for you in manual mode. That is true, but it doesn't mean that's the only way to set the shutter speed with a manual lens in manual mode.

Anyway, you're bumping into why they call this mount "crippled". If you want to change ISO in M mode, you're going to have to go with the awkward OK button plus front dial combination.

With M42 lenses I use Av mode, the camera does the shutter speed for me, and I have the rear dial set up for ISO and can change quite easily. Yet another reason M42s are easier to use on modern Pentax DSLR bodies than the M series of lenses are.
02-21-2009, 07:47 PM   #4
Veteran Member
rparmar's Avatar

Join Date: Jan 2008
Photos: Gallery
Posts: 8,783
Original Poster
QuoteOriginally posted by Mike Cash Quote
Why can you not control shutter speed with a manual lens in manual mode?
Sorry, typo. I meant to say I could not control aperture with the dial, since this is being controlled from the lens itself. Thus having a dial assigned to aperture in manual mode makes no sense for these lenses. I had not tried the K20D with an M42 so did not realise the greater freedom.

QuoteOriginally posted by Mike Cash Quote
Anyway, you're bumping into why they call this mount "crippled". If you want to change ISO in M mode, you're going to have to go with the awkward OK button plus front dial combination.
Darn. I do in fact find that awkward. In fact I find the back e-dial awkward in any case. But I'm thinking it is the software that's letting me down, not the mount. Surely I should be able to control ISO on the body with an e-dial no matter what lens I was using?

Looks like an oversight in the firmware.

02-21-2009, 10:32 PM   #5
Site Supporter
Site Supporter




Join Date: Mar 2008
Location: Prince George, BC
Photos: Gallery
Posts: 2,358
Holding in the OK button while turning the front e-dial changes the ISO for me in M mode.
02-21-2009, 11:36 PM   #6
Veteran Member
creampuff's Avatar

Join Date: May 2007
Location: Singapore
Photos: Gallery
Posts: 3,955
rparmar, I suggest you read this:

PENTAX digiich

PENTAX digiich

Most people coming from a film background would predetermine the shooting ISO first and use the aperture and shutter speed solely as exposure variables in manual mode. Alternatively you could use TAv mode and allow the camera to vary ISO.
02-22-2009, 10:38 AM   #7
Veteran Member
rparmar's Avatar

Join Date: Jan 2008
Photos: Gallery
Posts: 8,783
Original Poster
QuoteOriginally posted by creampuff Quote
rparmar, I suggest you read this:

PENTAX digiich
This is an article on Shutter & Aperture-Priority (TAv) mode. When I use this with a manual lens (with the front dial set to shutter and the back to aperture) this is what I get:
front dial: nothing
back dial: sets ISO
green button: nothing
The camera ignores the aperture ring on the lens.

I assume this is not correct usage.

I am unsure as to what you are suggesting.
02-22-2009, 10:41 AM   #8
Veteran Member
rparmar's Avatar

Join Date: Jan 2008
Photos: Gallery
Posts: 8,783
Original Poster
QuoteOriginally posted by jbinpg Quote
Holding in the OK button while turning the front e-dial changes the ISO for me in M mode.
True. But I was trying to avoid using the OK button. In every other mode I can.

Apparently I have found a limitation of the firmware. Annoyingly, this covers a very frequent usage scenario for me.

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, control, dslr, e-dial, front, iso, mode, photography, settings, shutter
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
K-x: Can Aperture be set in Green Mode? Edmund Troubleshooting and Beginner Help 4 06-15-2010 08:21 AM
How to set K20D + 2 AF540 in Manual & wireless mode? HermanLee Flashes, Lighting, and Studio 4 10-21-2009 09:11 AM
What drive mode do you set on default? Luciferase Photographic Technique 32 04-05-2009 07:38 AM
Cannot set to A mode rightaway Andi Lo Pentax Camera and Field Accessories 5 01-13-2009 01:52 AM
K100ds and full manual mode w/manual lens dwhopson Pentax DSLR Discussion 10 11-06-2008 10:37 PM



All times are GMT -7. The time now is 04:42 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