Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
05-17-2016, 01:21 PM   #1
New Member




Join Date: May 2016
Posts: 2
Pentax K-1 difficulties using legacy manual lenses

Hello everybody,

I'm a previous user of K10, K5 and since recently of K1. I have some collection of manual focus lenses (CZJ, Takumars, few russian lenses and others).

I mounted on my K-1 a CZJ 50mm f1.8 (using Pentax genuine M42-K adapter).
I encountered the following issues:
- focus confirmation does not work(the viewfinder bottom hexagon does not light, no red center spot highlight either. Previously I turned the camera on switched to manual focus, select center spot focusing mode. Nothing
- no screen asking to input focal when turning the camera on
Despite this, I am able to take pictures.

I mounted an Agfa lens 50mm f1.9 (https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/225222-agfa...mm-f1-9-a.html). Same 2 problems as above plus the following:
- the F-- indication lights intermittently and I can take no picture when pressing the shutter.

Am I missing something?

The same lenses on K10, K5 work perfectly.
I start having remorse about spending 2000 euros for a camera that does not work as advertised. The possiblity to use my MF lenses collection was one of main purchase reasons.

Thanks in advance

05-17-2016, 01:54 PM - 1 Like   #2
Pentaxian
Topsy's Avatar

Join Date: Feb 2014
Photos: Gallery
Posts: 328
In the camera settings you need to turn on 'using aperture ring' (no 26).
05-17-2016, 02:10 PM   #3
Administrator
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 40,958
QuoteOriginally posted by Alex2015 Quote
- no screen asking to input focal when turning the camera on
If you miss the screen, you can enter the focal length using the control panel (you may need to add the option to it), or via the main menu.

As for everything else, hopefully the aperture ring setting is all that's needed. If not, then the lenses may be shorting the contacts on the mount. It would be strange if the same didn't happen on your other cameras, though.

On an unrelated note, don't miss out on live view with focus peaking and/or magnification. Combined with the outdoor view setting, this can be an effective supplement/replacement for the viewfinder for obtaining accurate focus while hand-holding.

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:

05-17-2016, 02:26 PM   #4
New Member




Join Date: May 2016
Posts: 2
Original Poster
Thanks for the replies. I admit venturing into playing with the camera without finishing to read all the manual.
Indeed the aperture ring setting was missing
@Adam thanks for the focusing tips, really great features

05-17-2016, 02:58 PM   #5
Site Supporter
chemtech's Avatar

Join Date: May 2010
Location: Kansas
Photos: Gallery | Albums
Posts: 479
I ran into this problem with a Yashica DX 50mm f1.7. Not only would it sporadically not show the focus confirm, or beep; twice when I turned the K-1 in vertical position, the shutter wouldn't re-open.

I hope that it was the M42 short out situation. I changed lenses and couldn't get it to repeat the behavior.


The Yashica does have a larger circumference than the Takumar 50mm M42 that I was able to use with no issues.
I wonder if the K-1's electronics are a little more sensitive, thus the faster auto-focus on some of my older lenses.
05-17-2016, 04:32 PM   #6
Pentaxian
Na Horuk's Avatar

Join Date: Feb 2012
Location: Slovenia, probably
Photos: Gallery | Albums
Posts: 10,325
Doesn't the focal length screen only show up if you have SR turned On?
And focus confirm (hexagon, overlay) only work if you are half-pressing the shutter button? Also, you might want to look at other settings that affect focus confirm, like AF.A (or AF.S, AF.C - they don't all work equally well with MF lenses), focus priority (vs. shutter priority).
Hope you find and answer, and please post if you do, so others will benefit from it in the future.

Pentax does change the AF slightly from generation to generation, so it is possible the K-1 is somehow different
05-17-2016, 05:21 PM   #7
Site Supporter
chemtech's Avatar

Join Date: May 2010
Location: Kansas
Photos: Gallery | Albums
Posts: 479
I will have to check out some other settings, but, I'm a little anxious now since the shutter lock up.


Other things I remember: I hit the shutter again and it dis-engaged.
I also felt a large clunk when I first turned the camera sideways, more, than I expected. But, it could just be a K1 thing.

I was using M mode and MF for my settings. I also had the "use aperture ring" chosen. The change focal length screen showed up and SR was on.
Another thing that has occurred to me, is that I just confused the stuff out of the camera, because I was shooting down a basically black hallway with slight light only at the entrance.
05-17-2016, 05:44 PM   #8
Junior Member
scopedude's Avatar

Join Date: Apr 2013
Posts: 38
When using other than Takumar M42, make sure the lens has no electronic contacts. If it does, it won't screw lightly and you have to force the contact colliding with the K1 contacts on the mount. Not worth the risk.

05-17-2016, 05:52 PM   #9
Loyal Site Supporter
clackers's Avatar

Join Date: Jul 2013
Location: Melbourne
Photos: Albums
Posts: 7,704
QuoteOriginally posted by Alex2015 Quote
I admit venturing into playing with the camera without finishing to read all the manual.

Very naughty, Alex!


Glad it worked out, enjoy your new camera.
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, center, difficulties using legacy, dslr, focus, full frame, full-frame, k-1, k1, k5, lenses, pentax k-1, pentax k-1 difficulties, spot
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Manual Lenses on Pentax K-1 Sample Photo Threads monochrome Pentax SLR Lens Discussion 2 05-01-2016 09:10 AM
Which legacy Pentax lenses have corrections built in to the K-1? rdj92807 Pentax Full Frame 30 02-24-2016 10:31 AM
Using Manual SMC Pentax -M Lenses With Pentax K-50 nhlblues Pentax SLR Lens Discussion 6 12-11-2015 08:11 AM
K-3 Retaining (incorrect) Lens Data Using Manual Lenses? Sagitta Troubleshooting and Beginner Help 14 04-16-2015 10:24 AM
Using Manual Lenses (M42 Screwmount, M , K) on Pentax DSLRs F-- Adam Troubleshooting and Beginner Help 246 05-22-2014 02:46 PM



All times are GMT -7. The time now is 11:57 PM. | 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