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Forum: Pentax SLR Lens Discussion
01-06-2016, 03:26 AM
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Forum: Pentax SLR Lens Discussion
02-25-2015, 01:01 PM
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It's work only for k100d not for k100d super. I think it's not a problem to get old k100d body for low price. I got mine for 50 EUR particulary for working with lenses.
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Forum: Pentax SLR Lens Discussion
02-24-2015, 01:08 PM
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At first you have to get in debug menu to access lens rom (lenseep.lns file) and save it to SD card.
I used K100d body because with this body is more easy to get into debug menu.
1: Hold INFO and AE-L then power up
2: Press MENU, MENU then INFO in 5 secends
3: You now enter the debug mode
4: Press MENU once
5: Here you go!
It is possible also with other bodies, just search the forum:
https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/208353-how-...m-f-2-8-a.html
After I used Notepad++ on my pc to edit lenseep.lns (make copy before editting!!!)
Then copy edited file to SD card, enter debug menu once again and load sdited file to lens. That's it. It's easy.
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Forum: Pentax SLR Lens Discussion
02-24-2015, 11:38 AM
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I'm finally decided not to use another lens rom but at first try to disable SDM as for DA*16-50. I took my original lens rom and modified it in the same manner as instructions said for DA*16-50 - replace all c0 values with 80 in column 03. And after that the lens focusing is working in srew mode and - yes it's get in focus now!!! Everything is working! Yes, it's not so fast and more noisy but IT'S WORKING!!!
Thank you all for input!
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Forum: Pentax SLR Lens Discussion
02-24-2015, 06:57 AM
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I allready have a dock - old k100d body :)
---------- Post added 02-24-2015 at 03:58 PM ----------
No, the structure is the same.
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Forum: Pentax SLR Lens Discussion
02-23-2015, 01:43 PM
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Forum: Pentax SLR Lens Discussion
02-23-2015, 12:59 PM
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Please see lens file atached. What if try to replace all c0 with 80 in 03 column like with 16-50? Is it risky?
I wonder that there is less data than in DA16-50 file. Maybe somebody could read original file from another DA*300 and post here?
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Forum: Pentax SLR Lens Discussion
02-20-2015, 08:33 AM
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I tried today. The same behavior - hunting for focus but not recognising when in focus.
It seems that only option is to reprogramm this lens to srew mode only. Is somewhere available instructions - what parameters I need to change in lens config file to to that? Or it's the same as with DA*16-50?
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Forum: Pentax SLR Lens Discussion
02-19-2015, 12:01 PM
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it hunt back and forth couple of times and then stops (not in focus). I did't try LiveView because I don't usig this mode at all. I tried flipping AF/MF switch with no success.
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Forum: Pentax SLR Lens Discussion
02-19-2015, 10:18 AM
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I just got an old k100 body with no SDM contacts. And with this body focusing is working in screw mode. But with K-5IIs and k-01 focus is driving from one end to another but not stops when object is in focus. Also no in-focus sign and no beep but it works in MF mode. I also tried to remove filter and clean lens contacts but no luck :(
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Forum: Pentax SLR Lens Discussion
02-18-2015, 11:21 PM
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The first thing to check is whether the lens works OK on another Pentax body.
I tried the lens on K-01 body - the same problem.
Is your focus target closer than the minimum focus distance of the lens?
Definetly not.
Are the lens contacts clean?
I hope so. Will check.
Are you using a filter on the lens?
Yes, there is a filter for lens protection. Before the lens worked with the same filter.
Is the AF/MF switch engaged?
Of course it's set in AF position.
Is the camera AF in release or focus priority mode? Are you using back-button focus?
Didn't understand the first question. No, I'm not using back-button focus, only half-pressed shutter release button.
If you manually focus the lens do you get focus confirmation at the correct point.
Yes, I do.
Are you really sure the AF working well with other lenses (not hesitant sometimes)?
Yes, as far as I understand it's working correctly |
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Forum: Pentax SLR Lens Discussion
02-18-2015, 01:03 PM
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Hi,
I havePentax DA* 300mm F4 lens for 1 year. I purchassed it used in ebay more than year ago. It worked just fine with my Pentax k-5IIs body. But in one day I discovered that AF is not working - SDM motor works but it don't stop when object comes in focus. Other lens works just fine on the same body. Question is - is it possible that AF will work properly with screw drive and is it possible to reprogramm the lens fot that?
Of course - the best option is to repair the lens but it is the real problem in my country (Latvia) because lack of Pentax support in our region.
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Forum: General Talk
04-07-2010, 10:05 PM
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Forum: Pentax DSLR Discussion
08-10-2009, 03:12 AM
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Hi everybody,
Is it normaly for k20d that there is presence of visible noise at ISO 400? In some shots noise is more visible in some shots - less visible.
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Forum: Flashes, Lighting, and Studio
07-23-2009, 01:00 PM
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Thank You. I'm mainly using Av mode with ISO 200. As I understood one of my problems is too low iso setting. But witch mode for flash is more recommended - P-TTL or A mode?
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Forum: Flashes, Lighting, and Studio
07-23-2009, 01:41 AM
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Hi,
I'm using the k20d camera for more than 1 year and I'm very satisfied with it. This is my first SLR camera. But one thing I can't understand - how to operate with external flash. I've got Metz 58 AF-1 which is very good and powerfool flash but lot of my shots are under exposed. Especially when I'm trying to bounce flash light from ceiling.
May be I should use some special angle? May be I should use bouncer card? Which mode I should use - P-TTL or A mode? How to operate properly with flash settings? Help me, please!
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Forum: Pentax DSLR Discussion
03-02-2009, 12:59 PM
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Forum: Pentax DSLR Discussion
05-03-2008, 06:36 AM
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Hi,
Yeap, mean audible noise.
Now it's cleare, thank you!
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Forum: Pentax DSLR Discussion
05-02-2008, 11:45 AM
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Hi,
I have a k20d camera. The camera performs well, but when I switch to "live view" mode some strange noise is coming from camera. Is it normal? Why it happens?
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Forum: Pentax SLR Lens Discussion
04-14-2008, 03:05 AM
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Hello,
What do you think about Tele-Takumar 400/5.6 Pentax M42 lens for wildlife photography? It's doesn't cost a lot but 400 mm is long enough and with f4.5 ...
How do you think - it's good enough for begining?
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Forum: Pentax SLR Lens Discussion
04-03-2008, 03:16 AM
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Hi
I`m bought an Pentax K20D camera some weeks ago. Now I have only 18-55mm KIT lens and Sigma 24mm/f1.8 for indoor shooting. But I like wildlife (I'm also a hunter for many years) and I want to try wildlife photography. That's why I need some good but not very expensive telephoto zoom lens.
There I get some avilable options:
1. Sigma Zoom Normal-Telephoto 50-500mm f/4-6.3 EX DG Autofocus Lens for Pentax AF - 999USD
Sigma | 50-500mm f/4.0-6.3 EX DG AF Lens for Pentax AF | 736109
2. Sigma Zoom Telephoto 170-500mm f/5-6.3 APO DG Aspherical Autofocus Lens for Pentax AF - 769 USD
Sigma | 70-500mm f/5-6.3 APO DG Aspherical AF Lens | 734109
3. Tamron Zoom Telephoto AF 70-300mm f/4-5.6 Di LD Macro Autofocus Lens for Pentax AF - 160 USD
Tamron | 70-300mm f/4-5.6 Di LD Macro Lens | AF017P700 | B&H
4. Tamron Zoom Wide Angle-Telephoto AF 28-300mm f/3.5-6.3 XR Di LD Aspherical IF Macro Autofocus Lens for Pentax AF - 380 USD
Tamron | 28-300mm f/3.5-6.3 XR Di Autofocus Lens | AF061P700
Help me to choose, please. The first 2 options is more expensive, third option is very cheap, also 4th option also is well priced.
May be I don't need 500 mm at begining?
May be I can buy the cheapest one and some tele converter?
May be there are another good lenses?
P.S. I'm living in Europe, it means also that I will have to pay shipping charges and customs fee + VAT (about 20%).
May be there are options how no to pay customs fee and VAT, if somebody can organize the lens as "commercial sample" or "gift"?
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Forum: Pentax DSLR Discussion
04-01-2008, 10:54 AM
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There are sample photos from Sigma 24mm@f1,8
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Forum: Pentax DSLR Discussion
03-31-2008, 06:50 AM
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You have to set aperture ring on your lenses to "A" position. In any other mode camera can't operate aperture settings.
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Forum: Pentax DSLR Discussion
03-30-2008, 01:13 PM
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Hi
I have the same problem with my k20d. I bought it a cople of weeks ago and when I shot with kit lens, it seemed OK, but then I bought 24mm/f1,8 Sigma and there was a problem to get focused shots.
After that I made focus tests and I found that my camera has front focus! I tried to adjust it thru custom menu and for kit lens the setting -8 was ok - auto fokus now worked properly. But for sigma I tried maximum adjustment -10 and there still was about 6mm front focus!
Last friday I took my camera back for waranty service. But they said that I have to wait for camera about 3 weeks :( because there isn`t pentax service center in Latvia and they have to send my camera for service to Germany.
Now I have only my old Canon S3IS point-and-shot camera :(
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