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Forum: Pentax K-3 & K-3 II 02-01-2018, 04:48 AM  
K3 sample shots ... post here !
Posted By semaca
Replies: 12,378
Views: 1,653,905
A cropped photo of the Moon. One shot every 59 seconds. Bright mode used, no PS.
Forum: Troubleshooting and Beginner Help 01-31-2018, 09:07 AM  
Dirty autofocus sensor
Posted By semaca
Replies: 12
Views: 4,082
I will check for that tonight, but do I have to manually move the mirror to get to the secondary one? :rolleyes:
The bad thing was that I always clean my camera at someone else, but now I will buy a cleaning kit.
Forum: Troubleshooting and Beginner Help 01-30-2018, 06:39 AM  
Dirty autofocus sensor
Posted By semaca
Replies: 12
Views: 4,082
Lately I had some problems with my K-3 and many of my photos were blurry and the autofocus was really BAD even in daylight. Did some test shot with a focus chart and I suspected that the lens had some back/frontfocus issues.

Well, on the lens of the autofocus sensor I found a hair or some kind of clothing thread and I hope that thing was the origin of all my problems. Does anybody know if that 3cm hair can mess the autofocus that much? :o
Forum: Repairs and Warranty Service 04-18-2017, 11:25 AM  
D FA 24-70 no more infinity focus
Posted By semaca
Replies: 4
Views: 939
My 18-135 seems to be in that situation, but sometimes maybe is my imagination (I'm hoping it's the humidity in the air). Only at the wider angle. The warrenty just expired a month or two ago ;)
Forum: Troubleshooting and Beginner Help 04-14-2017, 01:32 PM  
Soft images with autofocus vs liveview
Posted By semaca
Replies: 16
Views: 1,945
I'm back from the trip. As I said, sometimes I did a small focus adjustement in the camera, but I can't see big difference. Anyway, here is a photo with a bird who was really close to me. Seems sharp...

Forum: Troubleshooting and Beginner Help 04-11-2017, 09:27 PM  
Soft images with autofocus vs liveview
Posted By semaca
Replies: 16
Views: 1,945
To be honest, I don't think I know where to look :)

Too bad that the 18_135 is my only lens with autofocus. I did a small adjustment but the results are not very clear.
For a wider scene what is the best setting? Single point AF.S?
Forum: Troubleshooting and Beginner Help 04-08-2017, 09:38 PM  
Soft images with autofocus vs liveview
Posted By semaca
Replies: 16
Views: 1,945
The focus ring seems to work normal.
So, for backfocus I should adjust it with +1 and check it, or +2 if that's not ok. That if is not a front focusing problem?
I think that the warranty was for 2 years and maybe just ended a month ago, but I have to search for the papers.
Forum: Troubleshooting and Beginner Help 04-07-2017, 08:34 AM  
Soft images with autofocus vs liveview
Posted By semaca
Replies: 16
Views: 1,945
The results with the autofocus are all over the place. I have tried to use fine adjustment with +/-. but I don't see a diference. How come that can of paint be so out of focus using just the autofocus?? The messy stuff is mostly at 18mm, but seems sharper at a bigger focal lenght.
Forum: Troubleshooting and Beginner Help 04-05-2017, 12:33 PM  
Soft images with autofocus vs liveview
Posted By semaca
Replies: 16
Views: 1,945
I'll try to add another image tomorrow. It should be something like a cityscape or a closer object? That back focus thing doesn't sound too good and I really need the camera in the weekend :o
Forum: Troubleshooting and Beginner Help 04-05-2017, 10:46 AM  
Soft images with autofocus vs liveview
Posted By semaca
Replies: 16
Views: 1,945
It was on AF-S with the center spot. AF fine adjustement is off, I don't really know how to use it. The lens was not dropped but if I want to clean the mount/contacts should a use something special or just the normal stuff for a lens?
Forum: Troubleshooting and Beginner Help 04-05-2017, 10:02 AM  
Soft images with autofocus vs liveview
Posted By semaca
Replies: 16
Views: 1,945
I'm using a K-3 and 18-135 and I always had sharp images with this lens, but something is not right now. Recently I did some small cleaning to the sensor, but I don't think that is the reason of soft images and also not the diopter.
I know that at the wider angle it's not brilliant, but everything looks blurry. Or maybe I'm exagerating.

18mm f/5.0 1/125s ISO400

Any advice? :)



Forum: Pentax K-3 & K-3 II 04-05-2017, 08:22 AM  
K3 sample shots ... post here !
Posted By semaca
Replies: 12,378
Views: 1,653,905
It was really dark there, but I think the light is from a yongnuo light wand or a head lamp and later on we did a small camp fire and that light was even better
Forum: Pentax K-3 & K-3 II 04-04-2017, 02:03 PM  
K3 sample shots ... post here !
Posted By semaca
Replies: 12,378
Views: 1,653,905
Creepy?

Forum: Pentax K-3 & K-3 II 02-27-2017, 05:30 AM  
Bright exposure mode in Bulb
Posted By semaca
Replies: 3
Views: 1,061
I was thinking about the bright, average and additive multi exposure modes. I hoped that in bright the pixels will bright up until a certain point and I will see longer star trails, but it seems it has some limits. I will try again in a night with more stars, but with a longer exposure than 30seconds.



It was cloudy :( I'm pushing the boundaries. I don't have now a remote that can do a series of exposure of 3 minutes, let's say.
Forum: Pentax K-3 & K-3 II 02-24-2017, 01:42 PM  
Bright exposure mode in Bulb
Posted By semaca
Replies: 3
Views: 1,061
I like using bright exposure for star trails and I have good result, but I have not used bulb mode until now. In a normal exposure, I am sure that the image will be even more overexposed, but I had similar results in Bright mode, so this is not an option for shooting stars, right?

Well, maybe using 250 frames overlayed in bright is the only solution in this case...;)

+ I see some big blue spot in the middle, maybe from that street lamp?

exposed1 by Petre, on Flickr

exposed2 by Petre, on Flickr
Forum: Pentax K-3 & K-3 II 02-22-2017, 05:32 AM  
why I won't buy a k3 (Warning: Satire Thread)
Posted By semaca
Replies: 102,909
Views: 4,785,530
Nothing much. I can't even capture the snowflakes.





Yup, it's shame :o
Forum: Pentax K-3 & K-3 II 02-21-2017, 06:38 AM  
why I won't buy a k3 (Warning: Satire Thread)
Posted By semaca
Replies: 102,909
Views: 4,785,530
What's cooking?

Forum: Pentax K-3 & K-3 II 01-10-2017, 07:06 AM  
K3 sample shots ... post here !
Posted By semaca
Replies: 12,378
Views: 1,653,905
How about some snow?

Forum: Pentax K-3 & K-3 II 12-26-2016, 01:56 PM  
K3 sample shots ... post here !
Posted By semaca
Replies: 12,378
Views: 1,653,905
A picture with my Christmas tree

Forum: Lens Clubs 12-01-2016, 04:22 PM  
Soviet lenses club
Posted By semaca
Replies: 4,207
Views: 1,073,483
With Tair 3S

Forum: Pentax K-3 & K-3 II 11-25-2016, 03:42 AM  
Sports Images with the K-3
Posted By semaca
Replies: 365
Views: 96,323
I was at some boxing event and had to shoot only with 18-135 at f/5.6 :o

Forum: Pentax K-3 & K-3 II 09-08-2016, 04:03 AM  
why I won't buy a k3 (Warning: Satire Thread)
Posted By semaca
Replies: 102,909
Views: 4,785,530
We had some fun (it's a video. I don't know how to post it here :) )

pentax k3 WR by Petre, on Flickr
Forum: Pentax K-3 & K-3 II 06-30-2016, 11:36 AM  
K3 sample shots ... post here !
Posted By semaca
Replies: 12,378
Views: 1,653,905
Some shots from a recent trip





Forum: Pentax K-3 & K-3 II 06-25-2016, 03:32 PM  
K-3 Paperweight
Posted By semaca
Replies: 12
Views: 1,847
Hmmm...Last week I really got the camera wet...really wet. At first it was ok, but after that cold shower I went into the sun and soon after the battery was dead. New battery got the camera back on, but then it died again. And again with the third one. In my case I think it was some condensation inside the battery compartment. I have cleaned the contacts with a tissue and left the door open over the night and now it's ok.
But this was my case...

PS: I will post the short movie soon
Forum: Pentax K-3 & K-3 II 06-25-2016, 03:26 PM  
K3 sample shots ... post here !
Posted By semaca
Replies: 12,378
Views: 1,653,905
The Shire is real

[18-135mm]

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