Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
11-06-2014, 11:31 AM   #1
Site Supporter




Join Date: May 2014
Location: Minnesota
Photos: Gallery
Posts: 1,362
Flashing F-- with new lens

Hello I just purchased a used Pentax lens from eBay and there is a flashing F-- on the LCD and the shutter won't release. I tried putting the lens in Manual Focus mode but still no luck. I even tried cleaning the contacts with an eraser but still no luck.

11-06-2014, 11:46 AM   #2
Pentaxian




Join Date: Jan 2012
Location: Slovenia
Photos: Gallery
Posts: 2,174
Which lens?
11-06-2014, 12:01 PM   #3
Pentaxian
dcshooter's Avatar

Join Date: Jan 2011
Location: Washington DC
Photos: Gallery | Albums
Posts: 4,475
If it is a pre-A lens, you need to set your body to allow manual aperture setting. It's in the menus. See your manual for exactly where for your particular camera model.
11-06-2014, 12:07 PM   #4
Site Supporter




Join Date: May 2014
Location: Minnesota
Photos: Gallery
Posts: 1,362
Original Poster
Guys I figured it out after almost dying from a heart attack. The lens is the 77mm f1.8 "Limited" that I bought used off of eBay. After trying to clean the contacts I went to the manual which explained that with FA series lenses you have to set the aperture ring to "A" for auto. I did that and the "F--" went away and I had control of the shutter. What bothers me is that after spending all that money I can't use the lens in Manual mode ?

11-06-2014, 12:12 PM   #5
Pentaxian
dcshooter's Avatar

Join Date: Jan 2011
Location: Washington DC
Photos: Gallery | Albums
Posts: 4,475
Sure you can. Just check the setting i mentioned in my previous message. It will allow manual use of the aperture ring even on AF lenses that have them.

QuoteOriginally posted by hjoseph7 Quote
Guys I figured it out after almost dying from a heart attack. The lens is the 77mm f1.8 "Limited" that I bought used off of eBay. After trying to clean the contacts I went to the manual which explained that with FA series lenses you have to set the aperture ring to "A" for auto. I did that and the "F--" went away and I had control of the shutter. What bothers me is that after spending all that money I can't use the lens in Manual mode ?
11-06-2014, 12:34 PM   #6
Pentaxian
schnitzer79's Avatar

Join Date: Jul 2013
Photos: Albums
Posts: 1,094
Just set the aperture ring of the lens to the f stop you want and change the "use aperture ring" option to 2 in the menu and youre good to go
11-06-2014, 12:48 PM   #7
Administrator
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 42,375
QuoteOriginally posted by hjoseph7 Quote
Hello I just purchased a used Pentax lens from eBay and there is a flashing F-- on the LCD and the shutter won't release. I tried putting the lens in Manual Focus mode but still no luck. I even tried cleaning the contacts with an eraser but still no luck.
Follow this guide, there's a setting you need to change:
https://www.pentaxforums.com/forums/54-pentax-lens-articles/110657-how-use-me...k-x-k-7-a.html

Adam
PentaxForums.com Webmaster (Site Usage Guide | Site Help | My Photography)



PentaxForums.com's high server and development costs are user-supported. You can help cover those costs by donating. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

11-06-2014, 02:10 PM   #8
Pentaxian
Na Horuk's Avatar

Join Date: Feb 2012
Location: Slovenia, probably
Photos: Gallery | Albums
Posts: 10,764
Yes, you have to tell us which lens, to see if this is normal or a problem.
QuoteOriginally posted by hjoseph7 Quote
Guys I figured it out after almost dying from a heart attack. The lens is the 77mm f1.8 "Limited" that I bought used off of eBay. After trying to clean the contacts I went to the manual which explained that with FA series lenses you have to set the aperture ring to "A" for auto. I did that and the "F--" went away and I had control of the shutter. What bothers me is that after spending all that money I can't use the lens in Manual mode ?
This is normal behaviour for all lenses that have an A setting on their aperture ring (usually have to press a little button to set it to A). This sets the aperture control to go through the camera. So you choose the aperture with the dials on the camera. This mode also allows metering, Av, P, and other modes.
You can also use the lens' aperture ring. Take it out of A mode, and go to camera Menu, at the end of the Menu choose "Enable aperture ring." Now the camera will let you use the aperture ring on the lens. But this can limit automation, you might have to use Green button to meter, and not all modes might be available. See the thread that Adam linked to. The Aperture ring is not needed on modern DSLRs, many DA lenses don't even have one, but it is good to have the aperture ring if you want to use the lens on old film cameras or with macro bellows, extension tubes.

But with the lens you mentioned, setting it to A and leaving it there is the way to go. You can use all modes, from M (full manual, you choose aperture, shutter speed, ISO) to P or Auto

11-06-2014, 04:05 PM   #9
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 27,131
QuoteOriginally posted by hjoseph7 Quote
What bothers me is that after spending all that money I can't use the lens in Manual mode ?
Put the aperture ring on the "A" setting and use it in the same manner as your kit lens. Manual mode is fully supported.


Steve
11-06-2014, 04:58 PM   #10
Site Supporter




Join Date: May 2014
Location: Minnesota
Photos: Gallery
Posts: 1,362
Original Poster
Thanks for all the advice !
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!
camera, lens, luck, pentax help, photography, troubleshooting
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Does this flashing yellow and red have something to do with exposure? rkymtnrider Pentax K-01 6 02-03-2013 09:40 AM
Problems with mirror lens on K-01...red flashing F-- slackercruster Pentax K-01 2 07-11-2012 01:20 PM
Getting a flashing F when I try using an SMC Pentax-M 1.7 lens with my K10D altrace Pentax DSLR Discussion 5 12-30-2010 10:34 PM
Flashing F------ Sheridan Troubleshooting and Beginner Help 8 07-28-2010 05:01 PM
k10d problems - locking up with a flashing "F---" s4chung Pentax DSLR Discussion 9 09-04-2007 05:02 AM



All times are GMT -7. The time now is 11:44 AM. | 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