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Forum: Troubleshooting and Beginner Help
01-08-2014, 12:09 AM
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Hi,
its a metal k-mount. I tried it in aperture and manual mode. After a few tries i figured out that it only works sometimes in manual mode... But only sometimes. The funny thing is it got a little bit better after a ton of shots, but its far from working reliable.
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Forum: Troubleshooting and Beginner Help
01-07-2014, 03:30 PM
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Thanks for your many replies, i didnt expect hat mich resonanz within such short time :-)
I rly think the Blades are dirty, after taking dozens oft test shots i sometimes could geht the aperture to close. I rly thank you all for your support. I will try to get this lens cleaned asap, since i kinda love the resulsts im getting with it, even if pictures look a little like a painting due to a lack of sharpness with open aperture.
Greetings!
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Forum: Troubleshooting and Beginner Help
01-07-2014, 08:55 AM
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Hello fellow Pentax users,
i bought a used lens mentioned in the threads title for about 20 bucks and tested it on my K-r. The good news is, it kinda works, the bad news is I cant change the aperture size by using the aperture ring on the lens.
Every Picture I take Shows the same DOF and same exposure times no matter if i select f11 or f2,8.
Is this the cameras fault, or the lenses faullt, and is there a way to fix this? Does the camera somehow fix the aperture to completely open? If i turn the ring when ist umounted i can see the aperture changing...
I have Firmware 1.14 if that matters...
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Forum: Pentax K-r
12-28-2010, 03:18 AM
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the photo was automatically reduced in resolution when i added it.
As I mentioned above the aperture was @ f3.5
Do you mean with "most critical focus" that it's a good or a bad Idea to test the focus on wider angles?
Tomorrow I will link a few test shots with 1/180s and f3.5 @ wide angle in full resolution.
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Forum: Pentax K-r
12-27-2010, 07:00 AM
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interesting, while shooting in "moving objects" mode the k-r uses 1/180 shutter speed, in auto always 1/30 or 1/40...
I took a few test pictures and showed them a friend of mine who's been a passionate photographer for years.
After looking @ the photos and playing around with the camera itself she told me that my camera defenetly has focus issues.
After setting custom autofocus fine adjustments to -10 results seem to be ok with a chance of ~80% - 90%.. decreasing with focal length...
Meaning wide angle shots are still not that great..
I will give it a try and send in the camera to a service point in germany...
To be honest I'm pretty dissappointed, imho it's just very impudent to send a camera with this configuration to an customer.
Thank' for your help anyways!
@krebsy97: Sry but I really dont understand why I shouldn't be able to tell if my camera has front focus(maybe I confuse this term with "it's not focusing where I want it to)
Even if depth of field is not that great with f3.5 in comparison to f1.4(for instance) but after looking @ the photos on an high resolution monitor you can tell the difference very well between the area in focus and the rest.
If you had looked @ my example Image closely you would have seen that the area i focused on is just NOT IN FOCUS while objects nearer to the camera get sharper and sharper...
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Forum: Welcomes and Introductions
12-27-2010, 06:35 AM
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Why haven't I thought of this already!? :D
But buying "her" lenses will have to wait until we come back from our journey to Vietnam(hell yeah, I'm looking forward to this!!!)
Of course I'll upload fotos as soon I get back!
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Forum: Pentax K-r
12-24-2010, 07:32 PM
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so to make this clear: my camera is ok, it has nothing to do with front focus, its only because of wrong adjustments the auto mode took?!(strange, shouldn't be the auto mode at least that intelligent to take a few good fotos when using the flash?!?!?)
Smaller aperture is a good idea but it would only cause a greater depth of feeld , which would cover the effect that the actual area I focused on is not in focus... but would not help me figure out why the area is not in focus...
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Forum: Pentax K-r
12-24-2010, 06:46 PM
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ok, i took this shot in auto mode, f3.5, iso 200, af.mode: 5/11, and I marked the camera's chosen focus point with a red rectangle(I'm sure this was the only focus point chosen)
I can't tell you the shutter speed, since the information provided by win7 seems to be wrong(1/8) and my cameras battery is completely discharged and I forgot the battery charger at my girlfriends apartment... i guess it was somwhere near 1/20s.
Sorry for the uncomplete informations, this is all I can tell you for now.
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Forum: Pentax K-r
12-24-2010, 04:37 PM
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Forum: Pentax K-r
12-24-2010, 04:09 PM
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Hi, I'm a total noob and got a brand new K-r. After shooting a few hundred photos I recognised tha tnearly half of my pictures are not sharp, but actually this only occurs @ a certain focal length.
I took a test photo(f3.5, 18mm) and focused on an object about 2 metres away. the result was very bad. Only some objects in the foreground were sharp.
When I zoom in to 35mm or more or when I focus @ nearer objects like my hand 0.5m away this problem doesn't occur ...
I took all shots under average light conditions indoor, using the flash.
Beacause I'm I noob I don't know if thats the front focus problem some people post about in this forum. Sometimes the camera does focus strange, sometimes not....
Can you tell me more, please?
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Forum: Welcomes and Introductions
12-22-2010, 07:15 AM
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Heho, thanks for the nice welcome!
Yeah it's torture... and no I cant read the manual...
So I browse the forum and dream about opening the package :'(
But there's one thing for sure: On Christmas Eve I will see the tree and my presents through the seeker of my new camera... most of the time... hehe
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Forum: Welcomes and Introductions
12-21-2010, 09:42 AM
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Yeah but as we say here in Austria: pleasant anticipation is the best kind of pleasure :D
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Forum: Welcomes and Introductions
12-21-2010, 08:24 AM
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I guess i was timed out because I dont find the thread I was writing 20min ago..
Short this time:
I have a K-r here but cant open the package because half of it is a christmas present of/for my girlfriend.
So I joined this forum to keep my self busy but not "off topic busy" until christmas :D
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Forum: Welcomes and Introductions
12-21-2010, 08:13 AM
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Hi there,
I never posted an "introduction thread" before after registering @ any forum, but I have never been more excited about becoming part of a certain community than the community of photographers.
My girlfriend and I bought each other a K-r for christmas... but to be honest with myself I guess she paid me half of my new dslr and pretends she'll use it too, so I don't feel guilty... and buy her something expensive too(what I did anyway :D )
So it's 3 days til christmas and I'm sitting here, staring at the package from Amazon(yeah I know... try to find a pentax retailer where I live) and the only thing from preventing myself from opening the box is writing this thread(God I hope there'll be some answeres to it!!!)
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