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Forum: Pentax K-r 05-16-2011, 04:16 PM  
Does my k-r have a focusing problem ?see this pic
Posted By hinckc
Replies: 22
Views: 4,508
This shot is in perfect focus, to my eyes.... let me explain... :)

The wall is demonstrating critical sharpness just behind and to the right of your subject. In fact, the wall is sharp through most of the frame, except the far left and right edges. I think that the AF caught on the wall, rather than your subject. This isn't front focus or back focus.

Most of the time, walls are 'flat' and don't trick the AF. However, the camera isn't doing face recognition or psychically predicting what you want to focus on. It's just saying, "FOCUSED!" on the first thing that it finds to be 'in-focus' across it's 5 or 11 AF points. In this case, it detected that the wall was in-focus and allowed the shutter to release. The highly reflective, shiny wall probably made this even more likely to happen in this case, since the brightest light hitting the AF sensor was coming from the wall, not your subject, making it the first thing to trigger the 'in-focus' designation from the sensor.

I personally can't shoot with 'auto-AF point'. I shoot my K-5 in SEL mode where you pick the AF point to use. It takes longer to aim the shot, but what you pick is always in focus.

I think there have been many good suggestions above, without changing any settings on the camera, I'll recommend this:
Try centering your subject in the frame, then half-press the shutter button, and hold it. Then re-frame your shot as you like. Press completely to take your shot.

I personally don't like to focus and re-compose, but without being able to choose your AF point, that's the best you can do to avoid what happened in your example, other than increasing your DOF by using a smaller aperture as recommended by others.
Forum: Pentax SLR Lens Discussion 02-20-2009, 05:54 PM  
Problem with the 50-135mm DA*
Posted By hinckc
Replies: 15
Views: 4,577
Hi offertonhatter,

I've been having similar but slightly different issues with my 50-135 recently...

When I tried to auto-focus via AF button, the lens seemed to try to go in both directions, and quickly gave up. The difference was that my lens was manually focusing OK, though it felt slightly less smooth as it turned, compared to normal.

I tried re-mounting, still no AF. I tried wiping the contacts, still no AF.
Then I tried shaking it a bit (not hard), but enough to see if I could tell if something had broken loose inside. It seemed normal, nothing loose. But after that, auto-focus worked again.

This has happened to me 2 times now, so I think I'm sending mine back to be checked out.
Now I'm finally glad I haven't sold my 'backup' Tamron 18-250 to fund a DA21... :)

-Chris
Forum: Pentax DSLR Discussion 02-18-2009, 12:30 PM  
focus-assist lamp absence in k20d.
Posted By hinckc
Replies: 18
Views: 6,266
When I want this effect, I use my AF540FGZ mounted on my camera set to the "SB" or spot beam mode.

It projects a red light beam, not mini-flash bursts to assist with AF, and no flash is fired during exposure.
I think the built-in flash is more limited.

-Chris
Forum: Pentax SLR Lens Discussion 02-13-2009, 06:39 PM  
DA* 16-50mm Serial Number Database.
Posted By hinckc
Replies: 528
Views: 156,832
Yes, it's normal for the focus ring to turn past the ends of the focusing "endpoint" or throw.

It surprised me at first, as well, but all 3 of my Pentax SDM lenses do this.

-Chris
Forum: Pentax Camera and Field Accessories 01-22-2009, 04:48 PM  
Is there CS-205 cable switch extension or a remote trigger w/ focus control?
Posted By hinckc
Replies: 6
Views: 3,526
The K10D and K20D have a (C) custom menu option that enables and disables AF when the infra-red remote is half pressed.
edit: I'm not sure if it recognizes a half press, but it _will_ AF before tripping the shutter, the way it would if you just press the physical shutter button in AF-S.
end edit:

I can't remember now for sure if that was available on my K100D, but I think you can do it with that camera as well...

-Chris
Forum: Photographic Technique 01-19-2009, 07:56 PM  
Histogram Confusion
Posted By hinckc
Replies: 10
Views: 4,837
IMHO, it's not a contradiction of logic, but a contradiction of objective. :) Or even more subtly, means to objective.

Most of the time, the picture will look more "right" if the histogram peaks in the middle.

But by exposing to the right, then using post process raw "development", and adjusting the tone downward such that the peak is nearer the middle will yield a cleaner, less noisy image than the other, ultimately "equally exposed" image.

For me, it's a question of how important is the "cleaner" image? If not so much, meter your peak to where it looks right (middle-ish), and save your jpeg. If you want the absolute best your camera can deliver and are willing put in the "manual" effort required to get there, then EV comp your exposure to push it to the right and be ready to spend the time to perfect it when you get home.

I'll agree that I don't trust how it "looks" on the LCD unless A) I've got my highlight/lowlight "blinkies" enabled, or B) I'm really just using the LCD to see the histogram AND C) I know how I've got my default JPEG conversions setup, since that's the basis for your displayed histogram.

-Chris
Forum: Pentax DSLR Discussion 01-17-2009, 12:53 PM  
K20D - User Comment
Posted By hinckc
Replies: 4
Views: 1,536
Hi EsBee, Welcome!

I'm not aware of any feature like this on the camera.

I tag my copyright in the metadata in Adobe Bridge while I'm importing them from the memory card. You can create a template and have it appended to each image as it's copied to your computer, so there's no "extra" step.

-Chris
Forum: Site Suggestions and Help 01-11-2009, 04:22 PM  
Poll: Which forum skin do you use?
Posted By hinckc
Replies: 38
Views: 3,743
I use classic skin, mostly for it's placement of the "Today's Post" link in the page footer.

It has much softer colors than the others, too, that don't compete with the photography so much. I'd like one that has a grey theme with black and or white accents, personally... :)

-Chris
Forum: Pentax DSLR Discussion 01-09-2009, 08:04 PM  
Poll: Sell K10D to fund K20D....
Posted By hinckc
Replies: 30
Views: 3,907
Hi Buddha,

To me, yeah, no brainer....

Welcome to ISO 3200, and about +.5 EV additonal PP compensation that you didn't have with the K10D.. Pretty cheap, for USD$300... :) Even today. :)

-Chris
Forum: Post Your Photos! 01-09-2009, 07:58 PM  
As dark an alley can get in China
Posted By hinckc
Replies: 7
Views: 2,172
Welcome, fractal,

Cool shot. I like the high contrast, and the overall dark mood.

To the earlier posters: I think the subject of the photo is the alley. That's why the photo was titled, "As dark an alley can get in China". :) I think the OOF people helps to highlight the intended subject.

The grain is very subtle, not overdone. I think it might be cool as a black and white, with even more grain! :)

Thanks for posting, I like to see pictures from China!

-Chris
Forum: Post Your Photos! 01-09-2009, 05:31 PM  
A lucky shot
Posted By hinckc
Replies: 13
Views: 1,763
Hi ovim,

You can call it lucky, but the person who wasn't trying didn't get as great a shot! :)

Have you considered adjusting the white balance on this shot? Your focus and composition are really great, and the ambient room lighting gives a great effect. But to my eyes, the shot appears to have a color cast. I took the liberty of downloading it and adjusting the white balance a bit, and think I've gotten some good results. With your permission, I'd attach it here. Let me know if you would like to see it.

Great shot, looking forward to more pics!

-Chris
Forum: Post Your Photos! 12-29-2008, 12:00 AM  
oh Jimmy
Posted By hinckc
Replies: 3
Views: 1,347
Hi devisor,

Your shots and posts are a great inspiration to me with respect to what can be done with a flash! :)

These two are really cool, great moods created with the lighting.

I hope you'll post a followup to the thread with the finals. I know I'd love to see them.

-Chris
Forum: Post Your Photos! 12-24-2008, 10:44 AM  
Post your best fish eye shot 2008
Posted By hinckc
Replies: 13
Views: 4,236
I didn't take enough fish-eye shots this year. This was an easy one for me to pick, since there were so few... :) I should take more next year...



-Chris
Forum: Post Your Photos! 12-24-2008, 10:30 AM  
Post your best B+W 2008
Posted By hinckc
Replies: 36
Views: 3,799
Here's my favorite B&W of the year.

It was envisioned as a color shot. I went on a damp rainy night just to help some of the colored lights reflect off the wet stones. But It really looked bad in color. Too many color temperatures, and nothing looked natural. But I thought it made a nice conversion. :)



-Chris
Forum: Post Your Photos! 12-24-2008, 10:24 AM  
Post your best bird shot 2008
Posted By hinckc
Replies: 90
Views: 15,588
Hi all!

Here's one of my favorites of the year in the bird category:



I liked this one best, mostly because I never knew that the male birds feed the females, so I learned something while I was shooting! :)

That "aggressive" eagle shot was WILD! :lol:

-Chris
Forum: Pentax DSLR Discussion 12-24-2008, 09:48 AM  
vignetting problem
Posted By hinckc
Replies: 13
Views: 4,010
Hi,

I just downloaded your image and tried to correct it the way I normally correct mine.

But now I see what you mean about the "uneven-ness" of the correction required.

I never experienced this with my Tamron. I usually just applied a moderate amount of correction and you'd never know it was there. Yours seems different.

-Chris
Forum: Mini-Challenges, Games, and Photo Stories 12-24-2008, 12:33 AM  
Your Pet A Day.... (post up!)
Posted By hinckc
Replies: 12,537
Views: 1,119,042
Here's one more softee....



-Chris
Forum: Post Your Photos! 12-24-2008, 12:26 AM  
Post your best landscape 2008
Posted By hinckc
Replies: 90
Views: 13,223
Wow, beautiful images here, everyone, and such a wide range of subjects and interpretations..

My favorite landscape of the year was a 12 image stitch of the NYC skyline shot from 30 miles west of New York.




It's too small to appreciate here, but the print will be about 100" long!

-Chris
Forum: Pentax DSLR Discussion 12-23-2008, 11:53 PM  
vignetting problem
Posted By hinckc
Replies: 13
Views: 4,010
Hi enrod666,

I have the Tamron version of this lens, and I, too, find the vignetting annoying in many situations.

The best bet is to stop down the aperture and avoid the extremes of the zoom range, for avoiding it in camera.

However, the Pentax Photo Lab software (and CS3/CS4's Camera Raw) both have vignetting correction which is easy to apply and completely correct the problem.

Personally, I just ignore the vignetting until I am printing or publishing the photo, then I use software to correct it.

-Chris
Forum: Post Your Photos! 12-21-2008, 07:39 AM  
Christmas at the White House
Posted By hinckc
Replies: 12
Views: 1,716
Hi Mike!

I think that zoom'ed exposure is my favorite example of that technique I've ever seen.
It looks like a Christmas tree of power, charged with electricity!

Nicely applied! Thanks for sharing!

-Chris
Forum: Mini-Challenges, Games, and Photo Stories 12-17-2008, 09:11 PM  
Your Pet A Day.... (post up!)
Posted By hinckc
Replies: 12,537
Views: 1,119,042
Hi all!

m8o's negative clarity style inspired this one...



K20D, DA70 @ f/4.5, 1/6th sec., ISO2200 +1EV comp from matrix program

I've been doing more and more "negative clarity" with CS4, too. Especially on my portraits. I think negative clarity really makes people happier with pictures of themselves! :hmm:

-Chris
Forum: Pentax SLR Lens Discussion 12-17-2008, 08:31 PM  
Pulled the trigger on DA* 300mm
Posted By hinckc
Replies: 27
Views: 4,456
Congratulations! and awesome shots!

I just recently got one too.

For me, it seems so short compared to my telescope I've been using for birds. :) but wow, I'm able to react to shot opportunities soooooo much faster than I'm used to. Between AF and the ability to get off my tripod, it sure is fun to use, compared to what I'm used to.

+1 on the vote to get that SDM TC available soon. I'm looking forward to it.

Don't over look it's close focus ability. It's nowhere near macro, but it's close enough for flowers and other equivalent sized close-ups.

Here's a shot I took the day after I brought home my DA*300. He's no bald eagle, but up to this point, I had found him too fast to catch with my telescope setup..



K20D, 300mm @ f/4, 1/250th, ISO560

Good luck, post some shots when you get it!

-Chris
Forum: Pentax DSLR Discussion 12-14-2008, 08:09 AM  
Poll: Who uses the Auto Focus button?
Posted By hinckc
Replies: 56
Views: 8,408
I currently use the AF button, but only after de-coupling AF from the shutter button.
It took some getting used to, but I would never go back to shutter button AF, if I could avoid it.

I use:
P mode
AF-C
AF-button for AF
AF point SEL

Setup like this, I can compose, focus, adjust exposure, then shoot, in four discreet steps, and without lifting my eye from the viewfinder. It focuses when I tell it, and it doesn't stop until I tell it to stop. When I press the shutter button, it never hesitates a second...

Thanks a ton to the people on the forum who've advocated it! It has really improved how happy I am with my results.

Funny thing... I usually find myself thinking in terms of EV compensation for the shot I've framed, rather than using AE-L, so my AE-L button goes unused. :) When I would think in terms of AE-L, I'm usually using Manual mode.

-Chris
Forum: Photographic Technique 12-13-2008, 08:13 AM  
Dec. 12, 2008
Posted By hinckc
Replies: 29
Views: 4,360
Thanks, Dave!

Here's another moon tip... The moon is the same size when near the horizon as it is when it's up high in the sky. It's something like an optical illusion that makes it appear larger when it's close to the horizon. Google "moon horizon illusion" for more info... :)

-Chris
Forum: Post Your Photos! 12-12-2008, 10:04 PM  
Sexy shower shots!
Posted By hinckc
Replies: 19
Views: 7,982
got me, indeed. :o

Cool lighting! When I first looked, I thought you had monotoned the image, but you got a much cooler effect with the gelled strobes.

thanks for posting 'em even without lovely models. :)

-Chris
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