Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
03-28-2015, 10:00 PM   #1
Veteran Member
lightbox's Avatar

Join Date: Mar 2015
Posts: 599
metering and histograms on Pentax dSLR's

Since I'm in the market for a dSLR and am not overly committed to my former system (Nikon), I'm taking a hard look at Pentax. Couple questions, please, for the folks who shoot with a K-50 or a K-3... the two that I'm considering.

Do either of these cameras give you quick access to the histogram when reviewing a photo, without having to go into menus? In the D80 I was able to just press a button continuously to cycle between different views, one them being histogram. If I left it in that mode, then the histogram would come up automatically when reviewing a shot.

Is the histogram available in live view?

Finally, is there any sort of exposure feedback (such as for blown out highlights) while composing the shot? Presumably this would be in live view mode.

03-28-2015, 10:40 PM   #2
Site Supporter
Site Supporter
jatrax's Avatar

Join Date: May 2010
Location: Oregon
Photos: Gallery | Albums
Posts: 10,821
QuoteOriginally posted by lightbox Quote
Do either of these cameras give you quick access to the histogram when reviewing a photo, without having to go into menus?
Don't have a k-50 though I assume it is the same. On k-3 in review mode you press info and use the scroll wheel to go through all the possible displays, there are 5 different ones from nothing to way too much, including both rgb histogram and separate channel histogram displays. And yes the selected mode sticks.
QuoteOriginally posted by lightbox Quote
Is the histogram available in live view?
Yes, but only RGB not separate channels AFAIK.
QuoteOriginally posted by lightbox Quote
Finally, is there any sort of exposure feedback (such as for blown out highlights) while composing the shot? Presumably this would be in live view mode.
Blinkies, yes in review mode. I don't think so in Live view but I don't use it that much so I'm not 100%. Also the viewfinder display will flash a symbol if you are out of reasonable exposure.
03-28-2015, 10:45 PM   #3
Veteran Member
sterretje's Avatar

Join Date: Dec 2008
Location: Roodepoort, South Africa
Photos: Gallery | Albums
Posts: 3,534
Pentax cameras are the same; toggle the 'info' button while in review.
03-28-2015, 11:13 PM   #4
Administrator
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 43,646
QuoteOriginally posted by lightbox Quote
Is the histogram available in live view? Finally, is there any sort of exposure feedback (such as for blown out highlights) while composing the shot? Presumably this would be in live view mode.
Yes to both, in live view and during playback.

QuoteOriginally posted by lightbox Quote
Do either of these cameras give you quick access to the histogram when reviewing a photo, without having to go into menus? In the D80 I was able to just press a button continuously to cycle between different views, one them being histogram. If I left it in that mode, then the histogram would come up automatically when reviewing a shot.
The histogram is fairly easy to get to. Just press the info button and select the appropriate histogram screen from the overlay menu. The histogram will then be displayed as you cycle through photos until you swap to a different screen by pressing the info button again.

In the past the screen would change every time you press the info button, but on newer Pentax bodies you have to go in and make a selection:


Standard view


Sub-menu shown after pressing the info button


Single histogram


Multiple histograms


Detailed exif


Adam
PentaxForums.com Webmaster (Site Usage Guide | Site Help | My Photography)



PentaxForums.com's high server and development costs are user-supported. You can help cover those costs by donating. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

03-28-2015, 11:48 PM   #5
Veteran Member
lightbox's Avatar

Join Date: Mar 2015
Posts: 599
Original Poster
Fantastic, and thanks for the screenshots
03-29-2015, 12:40 AM - 1 Like   #6
Pentaxian




Join Date: Feb 2015
Photos: Albums
Posts: 3,659
Live view is a good way to adjust exposure with histogram, but beyond +-2ev of exposure compensation, the histogram shown in live view is not representative of the histogram you get after taking the photo. Digital preview can be used to check actual histogram.
For lowest noise, spot meter on brightest part of the image + AE Lock and +2EV of exposure compensation give the most right sided histogram without highlight clipping.
For exposure level to render according to human, a incident light meter works great.
03-29-2015, 12:57 AM   #7
Veteran Member
lightbox's Avatar

Join Date: Mar 2015
Posts: 599
Original Poster
QuoteOriginally posted by biz-engineer Quote
For lowest noise, spot meter on brightest part of the image + AE Lock and +2EV of exposure compensation give the most right sided histogram without highlight clipping.
Unless I'm mistaken, that sounds like a modified Zone System. You're using the spot meter to first put your brightest object into Zone V (neutral) and then adding 2 stops of light to bring it up to Zone VII. The difference is you'll always have Zone VII present in the image until you bring it down in post.

(I hope I'm close and didn't just embarrass myself )
03-29-2015, 01:20 AM   #8
Pentaxian




Join Date: Feb 2015
Photos: Albums
Posts: 3,659
QuoteOriginally posted by lightbox Quote
is there any sort of exposure feedback (such as for blown out highlights)
Sorry I did not answer the question directly: Yes, on the K-3 , there is a exposure feedback such as blown highlight or black pixels, in live view or during image review. This has to be selected in the menu. Blown or total black pixels are highlighted in red / yellow.

03-29-2015, 05:08 AM   #9
Pentaxian
Lowell Goudge's Avatar

Join Date: Jan 2007
Location: Toronto
Photos: Gallery | Albums
Posts: 15,400
QuoteOriginally posted by lightbox Quote
Since I'm in the market for a dSLR and am not overly committed to my former system (Nikon), I'm taking a hard look at Pentax. Couple questions, please, for the folks who shoot with a K-50 or a K-3... the two that I'm considering.

Do either of these cameras give you quick access to the histogram when reviewing a photo, without having to go into menus? In the D80 I was able to just press a button continuously to cycle between different views, one them being histogram. If I left it in that mode, then the histogram would come up automatically when reviewing a shot.

Is the histogram available in live view?

Finally, is there any sort of exposure feedback (such as for blown out highlights) while composing the shot? Presumably this would be in live view mode.
On all my bodies you can set the camera to show either the greyscale or all 4 histograms for review,

Dead simple, take a shot press review
03-29-2015, 07:42 PM   #10
Forum Member




Join Date: Feb 2013
Location: Alberta, central
Posts: 99
QuoteOriginally posted by lightbox Quote
Since I'm in the market for a dSLR and am not overly committed to my former system (Nikon), I'm taking a hard look at Pentax. Couple questions, please, for the folks who shoot with a K-50 or a K-3... the two that I'm considering.

Do either of these cameras give you quick access to the histogram when reviewing a photo, without having to go into menus? In the D80 I was able to just press a button continuously to cycle between different views, one them being histogram. If I left it in that mode, then the histogram would come up automatically when reviewing a shot.

Is the histogram available in live view?

Finally, is there any sort of exposure feedback (such as for blown out highlights) while composing the shot? Presumably this would be in live view mode.
You might also find that Pentax bodies can meter a little differently than, well, pretty much everything else.
I haven't tried the K3 to compare, but every other Pentax DSLR I've used shoots a different exposure than CaNikon if you're used to shooting manually or manually overriding EV.
03-30-2015, 08:24 AM   #11
Site Supporter
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 27,663
QuoteOriginally posted by lightbox Quote
Unless I'm mistaken, that sounds like a modified Zone System. You're using the spot meter to first put your brightest object into Zone V (neutral) and then adding 2 stops of light to bring it up to Zone VII. The difference is you'll always have Zone VII present in the image until you bring it down in post.

(I hope I'm close and didn't just embarrass myself )
Yes, you are absolutely correct.


Steve
03-30-2015, 09:47 AM   #12
Site Supporter
Site Supporter
TimR's Avatar

Join Date: Mar 2014
Location: Kansas
Photos: Gallery | Albums
Posts: 181
Informative thread thanks everyone.
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!
camera, dslr, histogram, mode, pentax, photography, shot, view
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
What's the first lens you would mount on your new FF Pentax DSLR? 6BQ5 Pentax Full Frame 269 01-06-2016 04:20 PM
Digital Spotmeters and DSLR metering 8540tomg Photographic Technique 4 03-17-2014 01:34 PM
New to photography, DSLR's and Pentax Heinno Welcomes and Introductions 20 01-05-2014 11:00 PM
K5IIS and it's metering modes slip Pentax K-5 4 11-29-2013 11:04 AM
K-x Shooting Steeplechases, histograms, AF and high ISO's Perrumpo Troubleshooting and Beginner Help 25 04-07-2010 07:45 PM



All times are GMT -7. The time now is 07:57 PM. | 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