Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
11-06-2013, 12:51 AM   #151
Site Supporter




Join Date: Mar 2008
Location: Prince George, BC
Photos: Gallery
Posts: 2,268
This also pertains to Painter's recent post re. composite + interval shooting with the K-3. I just wanted to explore the composite side of the combo so I set the K-3 on a tripod in my dimly lit living room and adjusted settings to guarantee an ISO25600 shot. First image is SOOC with only base curve applied in pp. Second image is an ISO25600 22-shot composite in average mode of the same scene. What noise? This isn't news but I wanted to bring this to the attention of those new to Pentax DSLRs.

Jack

Attached Images
 
View Picture EXIF
PENTAX K-3  Photo 
11-06-2013, 09:47 AM   #152
Pentaxian
Barry Pearson's Avatar

Join Date: Jul 2013
Location: Stockport
Posts: 870
QuoteOriginally posted by Brew1brew Quote
Barry, To my eyes, the k3 shot at 51200 is under exposed, therfore noise will be higher.

edit: yes, checking the exif data, the K3 shot was at 1/180, the K5II shot was at 1/125 both at f5.6
QuoteOriginally posted by jsherman999 Quote
I think your own tests are probably closer to the truth, as they track closer to what DXOMark found when they compared the new 24MP D7100 to the 16MP D7000.

I don't know what's going on with those original IR samples. I wonder what firmware they had.
QuoteOriginally posted by Brew1brew Quote
also, the 6400 shot has different exposures, K3 is 1/20th and the K5II is 1/15th, so again the shot that is under exposed is going to show more noise.

Edit: same at iso 100, K3 3sec and k5 4sec
QuoteOriginally posted by rawr Quote
So your conclusions in one sentence are (tell me if I'm wrong): the Imaging Resource image samples make the K-3 look noiser than it is, perhaps due to some issues with colour balance or in-camera settings.

Your samples certainly look cleaner than the IR ones.
Thanks to all of you. I had to go away for a few days (back now) and felt that I had to publish my updated conclusions rather than just leave the earlier misleading results. But I didn't have time to analyse the results before departing.

Yes - the K-3 is giving slightly less exposure than the K-5IIs. (Why?) Perhaps this is enough to make the difference.

Earlier I had thought I would use the K-5IIs for (rare) very high ISO shots. Now I think I'll use the K-3 anyway. The noise is probably about the same, but in dim light conditions the other advantages of the K-3 will probably make it better. Shooting at very high ISOs probably means shooting in extreme conditions, where I might be choosing lenses for maximum aperture then cropping later, or needing the slightly brighter viewfinder, or needing all the help I can get from AF, or using exposure bracketing, which appears to be much faster with the K-3.

I have no regrets about buying the K-3 even though I have the K-5IIs. It is simply a well re-thought camera which will be seen to be an significant leap forward.
11-06-2013, 10:48 AM   #153
Site Supporter




Join Date: Apr 2008
Location: Central Ohio (formerly SF Bay Area)
Posts: 1,471
QuoteOriginally posted by Barry Pearson Quote
Yes - the K-3 is giving slightly less exposure than the K-5IIs. (Why?) Perhaps this is enough to make the difference.
I remember all the complaining about the K20d and how it tended to underexpose to preserve highlights. And yeah, I had to bump up my exposures in PP a fair amount as I recall.

Then along came the K-5, and I find I get more blown out highlights than I prefer, so I shoot at -0.3 or -0.7 routinely, depending on the environment.

Maybe this is an intentional compromise.
11-06-2013, 03:02 PM   #154
Senior Member
Lucky-Luc's Avatar

Join Date: Feb 2011
Location: Montreal, Canada
Photos: Gallery
Posts: 274
Feline profil

Taken with a HD DA 55-300 WR


11-06-2013, 05:16 PM   #155
Veteran Member
NicoleC's Avatar

Join Date: Oct 2013
Location: Madison, AL
Posts: 448
In my very ad-hoc mini "studio". I can see the texture on the paper I use as a backing.

ISO 800, f/16.0, 1/100



ISO 200, f/16.0, 1/20 (Pecans apparently need a little soft focus to be pretty.)



And out in the woods today to play a bit -- nothing really earth shattering here but it was a solid performer on a gloomy day:

ISO 1600, f/13.0, 1/100



ISO 200, f/4.0, 1/125



ISO 3200, f/11.0, 1/125

11-06-2013, 05:45 PM - 1 Like   #156
Loyal Site Supporter




Join Date: May 2011
Location: Richmond, Virginia USA
Photos: Gallery | Albums
Posts: 2,634
da300 iso 1600 f 4.5 shutter 250 bias 1.7






IMGD0276
by pearsaab, on Flickr
IMGD0276 | Flickr - Photo Sharing!


da300 iso 400 f 7.1 shutter 100 bias 1.7






IMGD0263
by pearsaab, on Flickr
IMGD0263 | Flickr - Photo Sharing!


da300 iso 160 f 8 shutter 640 bias -0.7






IMGD0188
by pearsaab, on Flickr

IMGD0188 | Flickr - Photo Sharing!
11-06-2013, 05:49 PM   #157
Loyal Site Supporter




Join Date: May 2011
Location: Richmond, Virginia USA
Photos: Gallery | Albums
Posts: 2,634
QuoteOriginally posted by Lucky-Luc Quote
Taken with a HD DA 55-300 WR
very nice!!!
11-06-2013, 06:15 PM - 1 Like   #158
Forum Member




Join Date: Mar 2011
Location: sydney
Photos: Albums
Posts: 77
QuoteOriginally posted by DimC Quote
Had some fun time this WE testing K-3 with my home Studio light set.

A daughter & his Daddy - Pentax 50-135mm - f9 - 1/160 - 100 ISO - Manual mode - AF Selection dot - Green Metering -



Sharpness is great out of the box, minor corrections with WB, vignetting, contrast and jpeg export (resized / 100% quality) in Lr5.2.
Thank you for posting your amazing photos with different lenses .
Hope to see more with another lenses you have.

And thank all of you for posting beautiful samples.
I think our photos of Xmas 2013 and New Year 2014 will be remarkable with this excellent K-3 .
Thank Ricoh for boosting up the Pentax . I can call you - PenCoh or RiTax , whatever since I had used a reliable Ricoh KR Super replacing for the broken Pentax ME Super.

Cheers

11-06-2013, 07:07 PM - 1 Like   #159
Junior Member




Join Date: Oct 2013
Posts: 29
OK so shiny new K3 arrived today. I'm coming from a K7. I love the extra focus points and the focussing speed is way better. That's very nice and will result in many more keepers. Overall images are great, but not way better than the K7 IMHO. I'm not used to the new layout yet but I think it will work well. I have one gripe about the way they have changed what you need to do set the focus point. I think that was a bit better on the K7. Early days though.

Unfortunately my main model wasn't as cooperative as usual, but here are a few snaps anyway.

Shot with the DA* 50-135:









Shot with the FA 50mm F1.4 with the AF360 flash:

11-06-2013, 07:45 PM   #160
Site Supporter
jpzk's Avatar

Join Date: Jan 2009
Location: Québec
Photos: Gallery | Albums
Posts: 7,059
Original Poster
QuoteOriginally posted by Lucky-Luc Quote
Taken with a HD DA 55-300 WR
Nice !!

I bet you are enjoying this new camera and new lens !?

JP
11-06-2013, 07:48 PM   #161
Site Supporter
jpzk's Avatar

Join Date: Jan 2009
Location: Québec
Photos: Gallery | Albums
Posts: 7,059
Original Poster
QuoteOriginally posted by NicoleC Quote
In my very ad-hoc mini "studio". I can see the texture on the paper I use as a backing.
Nicole, this series is a very nice representation of what "samples" should be and I think you've got the hang of it (camera) already!

May I ask what lens you were using for these shots?

Thanks for sharing.

JP
11-06-2013, 07:51 PM   #162
Site Supporter
jpzk's Avatar

Join Date: Jan 2009
Location: Québec
Photos: Gallery | Albums
Posts: 7,059
Original Poster
QuoteOriginally posted by pearsaab Quote
da300 iso 1600 f 4.5 shutter 250 bias 1.7
[HL]
Great shots !!

I really enjoy seeing so many great samples taken with the K3.
Keep them coming .... more please !

JP
11-06-2013, 07:54 PM   #163
Junior Member
RyukyuMike's Avatar

Join Date: Feb 2013
Location: Okinawa, Japan
Photos: Gallery | Albums
Posts: 28
Here's a shot from Okinawa, Japan made with the K3 at f/5.6 1/200 ISO 100 using the Sigma 50-500 at 270mm. The tripod was in the car so, I rested the Bigma on a fence to fire away. More from that day on my blog Mike's Ryukyu Gallery: 10 Photos of the Grey Heron with Wings Spread
Attached Images
View Picture EXIF
PENTAX K-3  Photo 
11-06-2013, 07:55 PM - 1 Like   #164
Site Supporter
jpzk's Avatar

Join Date: Jan 2009
Location: Québec
Photos: Gallery | Albums
Posts: 7,059
Original Poster
QuoteOriginally posted by Nostrildamus Quote
OK so shiny new K3 arrived today. I'm coming from a K7. I love the extra focus points and the focussing speed is way better. That's very nice and will result in many more keepers. Overall images are great, but not way better than the K7 IMHO. I'm not used to the new layout yet but I think it will work well. I have one gripe about the way they have changed what you need to do set the focus point. I think that was a bit better on the K7. Early days though.

Unfortunately my main model wasn't as cooperative as usual, but here are a few snaps anyway.
I have the K7 as well (and the K5) and was rather surprised that you mention that your shots were not "way" better than those taken with your K7.
As you said though: early days!
I'm sure you will have more shots to post here soon.

Thanks for sharing.

JP
11-06-2013, 07:59 PM   #165
Veteran Member
NicoleC's Avatar

Join Date: Oct 2013
Location: Madison, AL
Posts: 448
QuoteOriginally posted by jpzk Quote
Nicole, this series is a very nice representation of what "samples" should be and I think you've got the hang of it (camera) already!

May I ask what lens you were using for these shots?

Thanks for sharing.

JP
Thanks. My keeper rate was only about 4% today, so I don't know how used to it I am yet! Although in my defense, MAN is the continuous shooting fast. Still, I found the K-3 easy to use off the bat.

I was using the DAL 18-55 kit lens that came with my K-x. Yes, I need some new glass, too!
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
australia, auto, bittern, da, dslr, exposure, fa, flickr, info, iso, jpg, k-3, k3, k5-iis, morning, pentax k-3, photography, pics, pm, post, sample, shot, shots, sunbird, thread, wb
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Pentax Q street shots - post them here. barondla Pentax Q 254 04-22-2016 05:46 PM
Suggestion Create ONE thread with K3 sample shots to make it easier to navigate jpzk Site Suggestions and Help 2 10-31-2013 07:51 PM
DA 55-300 Sample Shots (x7), no post processing cputeq Pentax SLR Lens Discussion 15 07-04-2008 01:01 AM
Post Your Eclipse shots here. vievetrick Post Your Photos! 34 02-25-2008 08:14 AM
Spring! Post your Motorcycle shots here! slip Post Your Photos! 33 04-28-2007 05:18 PM



All times are GMT -7. The time now is 08:45 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top