Announced May 20, 2009 •
15 megapixels | 3″ screen | APS-C sensor
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My wife just acquired a K-7 body used, and while we were inspecting it without a lens or battery in we notice a pronounced clunking sound when the camera is rotated on multiple axis. I am assuming that this is the image stabilizer rolling on bearings without power, but before we get to excited, could someone please tell us if this is normal for this model of Pentax body? When I did a search on noise it came up multiple times as an image quality result, I am looking for the physical...
I have just downloaded the trial version of DxO Optic Pro 9 but it does not recognise the .dng files straight from my K-3? It will load old .dng files from K-10. K-7 and K-5IIs with no problems. I have downloaded the appropriate camera/lens profiles. Has anyone used Optic Pro 9 with K-3 .dng files? If so, are there any special settings? Thanks Tony
I purchased one for my SO as a Saturnalia gift, and it's wonky. I get the same glitches when I put it on my K7 or her K5. The focus hunts more than it should, and then once it locks, it won't release or respond to the shutter button (either half or full press), obviously meaning you can't take a photo, which I find to be quite the bore. About half the time, changing the zoom prompts it to release, but the other half, only switching the camera off will see the lens cooperate further. Both...
I am having problems getting a sharp image from the K3. I traded-in my K5IIs about three weeks ago, but have yet to shoot what I would consider a sharp image. I shoot birds with a DA*300 and have had great success with K7 and K5IIs. I have tried various focus modes, check the front/back focus which seems to be OK but so far none of my shoots have been what I consider sharp. The following two images show the full frame and a 100% crop, which I think should be sharper than this? Or is this what...
Hi All, Its been a good while since I last posted in the Sigma forum, I currently have a DP1x which I still enjoy using for wide-angle. I recently went over to Pentax with a K-7 and FA 43mm lens (and a FA 20-35mm now sold). An example of my favourite shots of from that combo: http://www.flickr.com/photos/hoopsontoast/sets/72157634134478729/ I have been thinking about moving back to Sigma for two main reasons: -I really like the body size/handing of the DP1x, I found I did not get on with...
When I had my K5 I was able to produce sharp results in PSE from handheld bracketed shots. With my K5 IIs I no longer can and and get a blurred result when I use the auto method in PSE - (I have not figured out how to align the shots manually). Handheld HDRs were not possible for the K7 and the ability to produce sharp results from handheld shots was one of the improvements listed for the K5, but here again the in-camera alignment does not seem to work as well as it did in the K5. I am...
I use a K-7, often with a Tamron 28-300mm lens. On occasion, the camera simply does not respond to the shutter button. I tried changing exposure conditions, thinking it was telling me I couldn't get a good picture under the conditions set, but that didn't work. Finally, I tried turning off the autofocus, and that did work. I am guessing that when the camera couldn't decide on a focus target, it simply gave up without letting me know why. (i.e. perhaps because the main object receded into the...
By: solarider (Aug 28, 2013)
I've noticed on the Sigma 100-300 f4 and the first version of sigma 17-70 2.8-4.5 that there is a bit of wobble as to how the lens situates in the camera mount. It's not a snug fit on my copies compared to pentax or tokina lenses for instance. What say you guys? what is your experience? Are there only some copies that do this or is it more of more widely seen phenomena?... Sigma does reverse engineer - maybe Sigma needs to come only close to escape the wrath of khan ;-) I'm also feeling for...
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