Hi,
This is my 28-day experience with the K-3 after 410 pictures. Hopefully, this might help some people who may be having problems with image sharpness. Please forgive the length of this post as I would like to document everything.
While pros were debating K-3 image sharpness issues around the web, a newbie here was also quietly having similar kind of problem with soft and blurry images. Didn't notice it until last week as I tried to work through the issue.
My K-3 was the regular edition with 18-135 WR bought from Adorama.
Symptoms
1. Even raw images (my use for jpeg are backup only) are not sharp 99% of the time when viewed at 100%. I guess it would be the same with jpeg.
2. All of the ones that are 100% pixel peeping sharp or decent are with the use of built-in flash.
3. Images just don't pop. Colors seem dull. For this type of camera, I would say just ok quality. Don't know how else to explain it.
Tried
1. Tried different shutter speed thinking they are slow and my hands are shaky. Did not help.
2. Tried using my decent (Slik 330CX Pro) tripod for all pictures. Nope. May be not sturdy enough? May be anything with the word Pro in it is not necessarily for Pro?
3. NR settings. I wasn't even sure if it affects raw or not. But, what the heck. Worth a try. Nope. At least with raw, I don't have to troubleshoot jpeg engine.
4. SR on/off. Nope.
5. Initially tested the lens for front & back focusing using easy AA batteries shots (followed an online article). Seems fine.
6. Thinking it was my skills, I watched 16 hour worth of videos non-stop on photography. Remember, I'm just a hobbyist. Not even enthusiast or semi-pro.
7. May be mirror slap with dslr? 2 sec delay timer is needed? Mirror lockup thingy. Nope.
8. Was it the lens? Try another one? Too bad. I'm new. I have nothing else.
It was driving me nuts!
Thoughts
I was thinking if I have to take every picture with a tripod (even with it sharpness wasn't guaranteed) or utilize flash, K-3 is not going to work for me. Also thought about renting a different Pentax lens from Lens Rental and testing it out. Saw Ed's from Photo Universe thread on DPR and thinking, if this sort of pro is having this kind of problem, may be K-3 is too much camera for me. Of course, I still don't know if his and my problem are the same. I also don't like putting learning photography on hold while I wait for a firmware.
Thought about returning and getting an E-M1, when I thought the mirror slap was causing it. Mirrorless = problem solved. But, the cost is too high for what I get. Half a pound & 1cm in body size saving for $700 more? With a less sharp sensor (according to DXO comparison) and smaller zoom range (12-40 pro zoom vs 18-135)? No thanks. A7R? Very tempting! My pocket resists. D7100 and the likes: read too many comments with oil issues. What do I know? As a newbie, I just need to read tons of comment / reviews to make a decision.
All in all, I have no choice. If I have to get my bang for the bucks, I have to get this solved and stick with Pentax. Besides, I like the mature & polite atmosphere of this forum
.
Clues
The other night, finally did two shots of mini Christmas tree on a tripod. Not with the timer. One with LiveView. One with ViewFinder. One with LiveView was so sharp. Started reading about PDAF, CDAF. Then, started thinking, may be I need to do lens calibration again. May be I did not do it right. Finally tried 5 C batteries test. AA batteries seem too small. Started with LiveView, -10, -5, 0, +5, and +10. Initial test with +/-1 increments and AA batteries are probably too close to tell it apart. The one with the +10 AF Fine Adjustment looks as good as LiveView. Set it to +10 and viola. Every single image pops, sharp, and vibrant at 100%, except where I make silly newbie mistakes of course. Handheld on all of them. Even 135mm, 1/50s handheld are super sharp. SR on or off makes no difference. All sharp. Sharp at 100% view all of them. Unbelievable sharpness and brightness on all pictures. Being a newbie, I don't know if this is a common practice with dslr to have to adjust the AF. I don't even know if +10 is front or back focused. Was it back? Anyway, I just know that +10 fixes it
.
Resolution
Now that I have found the problem, I was thinking about what I should do. Decided to ask the expert. So, I browsed around Ricoh's website. Found the C.R.I.S number. I have read about them on this forum to be good. Called and talked to somebody there. I asked if it is even fixable? Yes. But, he said if it is under 30 days of purchase (I'm on my 28th day), return it. If over, send it to them. He said, a camera like K-3 and the lens should not be doing that (+10 max AF Fine Adjust) out of box. Anyway, technically, my major issue is fixed. I could continue to use it. But, might as well get a better one. My K-3 just went back yesterday. After adjustment, even with the 18-135mm, K-3 is so awesomely sharp, just like Ricoh's sample (model on the grass). I can't wait to get my replacement!
I'm just happy that, in my case, it's not the user
. It's the QC or manufacturing tolerances or whatever. I can update this thread with some images as soon as I get a chance if anybody wants to see and analyze, as long as they don't mind suffering through my test photos.
Adorama is great. Exchange with no questions. C.R.I.S is awesome as well. Very responsive and helpful.
My background
Unlike others, I have no existing accessories, no brand royalty, and no significant photography experience. I do have a good eye for good art/photos, being formally trained as a commercial graphics major. I did have to take a semester of classes 17 years ago with a film camera that I had to borrow. Films with different ISO, darkroom, developer, etc, all the works. Can't recall a thing about it anymore. I also do not make my living with my training.
Making my living as a glorified corporate network handyman, I was determined to troubleshoot this little piece of electronic gadget. I wasn't going to let this simple little menu bother me. I mainly use point & shoot since school. Never took more than 100 photos in the past 17 years.
This background factoid might be usable for Ricoh marketing department's target market profile.