Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
12-19-2010, 10:50 AM   #1
New Member




Join Date: Aug 2010
Location: Toronto
Photos: Gallery
Posts: 11
Any advice on snow shots with K7

Yesterday I did some shots on a hill and had difficulties to find correct settings.
Seems like everything comes underexposed on snow even with the EC +1.
Here is my results:



Exposure 0.002 sec (1/640) Aperture f/5.8 Focal Length 300.0 mm ISO Speed 200 Exposure Bias +1 EV



Exposure 0.002 sec (1/640) Aperture f/5.8 Focal Length 300.0 mm ISO Speed 200 Exposure Bias +1 EV

12-19-2010, 11:04 AM   #2
Veteran Member
mysticcowboy's Avatar

Join Date: Apr 2009
Location: port townsend, wa
Photos: Albums
Posts: 968
In bright snow about 2 EV usually works. With overcast 1-1.5 is good. The problem is that exposure meters want to make the snow a middle gray.
12-19-2010, 11:38 AM   #3
Veteran Member




Join Date: Mar 2010
Photos: Gallery | Albums
Posts: 1,545
In snow conditions I usually run Manual that way I'm not relying on the camera's metering. Like mysticcowboy said, the camera views snow as gray so you just have to compensate...
12-19-2010, 01:27 PM   #4
Veteran Member




Join Date: Nov 2010
Location: Fife, Scotland
Posts: 834
Get the feel of the exposure - take a shot with (say) +1.5EV compensation and check the histogram. Repeat if necessary, but remember slightly underexposed is better than slightly overexposed.

12-19-2010, 02:02 PM   #5
Ash
Community Manager
Loyal Site Supporter
Ash's Avatar

Join Date: Mar 2007
Location: Toowoomba, Queensland
Photos: Gallery | Albums
Posts: 22,695
These results are quite expected.
And as you're using a lens that normally requires some +ve EC, then in snow this underexposure will be even more accentuated. Keep pushing up the EV to taste.
12-19-2010, 02:10 PM   #6
Senior Member
GoldenRGuy's Avatar

Join Date: Dec 2010
Location: Kingston, Ontario
Photos: Albums
Posts: 154
QuoteOriginally posted by mysticcowboy Quote
In bright snow about 2 EV usually works. With overcast 1-1.5 is good. The problem is that exposure meters want to make the snow a middle gray.
So press the +/- button and turn the rear wheel? Press the green button to reset?
12-19-2010, 08:55 PM   #7
Site Supporter
SpecialK's Avatar

Join Date: Dec 2006
Location: So California
Photos: Gallery
Posts: 14,901
QuoteOriginally posted by mysticcowboy Quote
In bright snow about 2 EV usually works. With overcast 1-1.5 is good. The problem is that exposure meters want to make the snow a middle gray.
Exactly. Some knowledge of the "zone system" will help estimate what EC is needed.

Zone System - Wikipedia, the free encyclopedia
12-20-2010, 07:34 AM   #8
Veteran Member




Join Date: Jan 2008
Location: Ste-Anne des Plaines, Qc., Canada
Posts: 2,014
You can also "spot meter" on the subject, and use the "exposure lock" button to keep the proper exposure setting while you recompose and shoot.

12-20-2010, 08:27 AM   #9
Veteran Member




Join Date: Jul 2010
Location: Lyngby, Copenhagen
Photos: Albums
Posts: 742
the "M and green button" trick

QuoteOriginally posted by flyer Quote
You can also "spot meter" on the subject, and use the "exposure lock" button to keep the proper exposure setting while you recompose and shoot.
Yes, that'll work for one shot. You'll need to repeat it for every shot though. Even better, put the camera in M, spot meter the subject and press the green button. That will set the M exposure reasonably.
Providing the subject is middle-toned of course. Apply correction as needed.
You can also spot meter the snow and add 2 stops.

Regards,
--Anders.
12-20-2010, 09:05 AM   #10
Site Supporter




Join Date: Sep 2006
Location: WV
Posts: 1,495
If it's a sunny day with not much cloud cover, meter off the blue sky.
12-21-2010, 06:02 AM   #11
New Member




Join Date: Aug 2010
Location: Toronto
Photos: Gallery
Posts: 11
Original Poster
Thanks to everyone!
I will try to use fixed manual settings for the static shots, but when I follow the subject, I will bump AE and use the Tv mode.
What about the White Balance? I had to reset it during PP. The snow was blue with automatic WB settings.
12-21-2010, 08:43 AM   #12
Site Supporter




Join Date: Nov 2008
Location: Minneapolis
Photos: Albums
Posts: 588
QuoteOriginally posted by vladm11 Quote
What about the White Balance? I had to reset it during PP. The snow was blue with automatic WB settings.
Suggest using a preset (daylight or cloudy, depending on the conditions) or best results will be setting a custom WB off of a grey card, or any known white (shirt, toque, perhaps clean snow).
12-21-2010, 08:50 AM   #13
Veteran Member




Join Date: Nov 2010
Location: Fife, Scotland
Posts: 834
QuoteOriginally posted by vladm11 Quote
What about the White Balance? I had to reset it during PP. The snow was blue with automatic WB settings.
Depends how blue. Snow often does have a blue tinge especially in shadows. But if it was all pretty blue then the WB was wrong.
12-21-2010, 10:30 AM   #14
Senior Member
GoldenRGuy's Avatar

Join Date: Dec 2010
Location: Kingston, Ontario
Photos: Albums
Posts: 154
I got blue snow changing the WB to Tungsten. (on purpose 'cause it looked cool!)
12-23-2010, 04:10 PM   #15
Loyal Site Supporter
Canada_Rockies's Avatar

Join Date: Nov 2007
Location: Sparwood, BC, Canada
Photos: Gallery | Albums
Posts: 9,535
When I take snowy images, I meter the snow in Manual exposure and add two stops. That means metering with only snow in the picture in the same lighting as the subject. I leave the camera in manual exposure at those settings. As Pentax cameras (not sure about the K-5) generally give 1/3 - 1/2 stop of supposed under exposure*, I find two stops works just fine. Another way to work this is to use a substitute metering subject that works out to 18% grey and use no exposure compensation - but still using manual exposure mode.

*the supposed underexposure actually retains the highlights. Pentax metering up to and including my K10 blows out the highlights almost never. It was adjusted so that slide film such as Fuji 50 or Kodachrome 10 or 25 would have perfectly exposed slides.
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!
bias, camera, ev, exposure, iso, length, mm, pentax help, photography
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Misc A few shots from the garden covered in snow chaude Post Your Photos! 2 12-19-2010 12:31 PM
Want to try my K7 in the snow...Advice seachunk2 Troubleshooting and Beginner Help 15 02-13-2010 09:48 AM
People First Snow Shots kewpie-o Photo Critique 7 02-07-2010 06:32 PM
Nature Snow Shots dadipentak Post Your Photos! 3 01-09-2010 02:51 PM
Two Snow Shots kpfeifle Post Your Photos! 4 03-19-2007 01:35 PM



All times are GMT -7. The time now is 06:58 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