Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
06-24-2010, 10:17 AM   #1
New Member




Join Date: Jun 2010
Location: seattle,wa
Posts: 4
iso 50 on k-x

When I bought my k-x I saw ISO 50 being available. A few test shots I made revealed a wonderful dyn range and silky-smooth shadows. Now, a few weeks later, cant figure out what happened with my ISO 50! I know, sounds silly, probably some menu setting, but would really appreciate a hint on how to enable the ISO 50 back.

06-24-2010, 10:37 AM   #2
Ira
Inactive Account




Join Date: Mar 2009
Location: Coral Springs, FL
Photos: Gallery | Albums
Posts: 5,216
There's no 50 on the Kx. 100 is the lowest.
06-24-2010, 10:58 AM   #3
New Member




Join Date: Jun 2010
Location: seattle,wa
Posts: 4
Original Poster
There definitely was ISO 50, I used for weeks before somehow 'loosing it'. Maybe its lens, maybe its menu settings or combination thereof, but ISO 50 was there :-)
06-24-2010, 11:19 AM   #4
Inactive Account




Join Date: Aug 2008
Location: Michigan, USA
Photos: Gallery | Albums
Posts: 7,484
QuoteOriginally posted by kamocio Quote
There definitely was ISO 50, I used for weeks before somehow 'loosing it'. Maybe its lens, maybe its menu settings or combination thereof, but ISO 50 was there :-)
Lenses have nothing to do with ISO. If your camera did ISO 50 then you have a very special machine. The manual specs the Kx at 200-6400 and I guess Expanded will get you 100-12800.

Show us a photo, with the exif in tact, taken at ISO 50. That may actually convince me to try the Kx.



06-24-2010, 11:23 AM   #5
Veteran Member
dgaies's Avatar

Join Date: Oct 2009
Location: Maryland / Washington DC
Posts: 3,917
QuoteOriginally posted by Ira Quote
There's no 50 on the Kx. 100 is the lowest.

I'm pretty sure Ira is correct. In fact, if I'm not mistaken, 200 is actually the considered the "base" ISO on the Kx, although you can extend this down to 100 if you like. I also recall reading that the true base ISO of the Kx sensor is closer to 125, for what it's worth.

Regardless, as far as I know, there is no way to set the Kx to an ISO setting of 50.
06-24-2010, 11:40 AM   #6
Veteran Member
wshi's Avatar

Join Date: Dec 2009
Location: Illinois
Posts: 455
I wish there was an ISO 50

Perhaps you're thinking of some P&S you used?
06-24-2010, 11:47 AM   #7
Pentaxian
Marc Sabatella's Avatar

Join Date: Sep 2006
Location: Denver, CO
Photos: Gallery
Posts: 10,686
If you took hundreds of shots at that ISO, then try looking at the EXIF info. I believe you'll find you were mistaken about either the ISO level you were using or the camera you were using. No Pentax DSLR has an ISO 50 - and I don't know of any APS-C camera from any other manufacturer that does, either. It would be counterproductive to have ISO 50, because the lower the base ISO of the camera, the worse it will likely perform at higher ISO.
06-24-2010, 12:18 PM   #8
New Member




Join Date: Jun 2010
Location: seattle,wa
Posts: 4
Original Poster
Sorry guys. In all likelyhood either I am going to get a heart attack or pull whatever is left of my hair. I absolutely vividly recall seing ISO 50 one day and going ... wow, did not see this before, what's this curiosity for? I tried taking a picture of a sun with my 300 mm at 1/6000 at iso 50 hoping to see sun spots (yes, I am a newbie). It was washed out so I erased the shots. I do not recall any other 100% shot I took at iso 50 ... and yes, you are right, at this point anything I say is a crazy man's talk unless I find a an iso 50 sample ...
I'll loose my sleep now. If I re-discover it, I'll make sure I have proof and let you know :-)

06-24-2010, 12:28 PM   #9
Junior Member




Join Date: Dec 2009
Location: Covina, CA
Posts: 47
even at ISO 50, the Canon 5DMarkII doesnt do well, check Dxomark for test info, K-x has 100-12800, with 3rd steps, usable at 6400 2.8 and steady hand in my experience.
Happy Shooting,
06-24-2010, 01:47 PM   #10
Veteran Member
KxBlaze's Avatar

Join Date: Feb 2010
Location: California
Photos: Gallery
Posts: 1,594
Download Photome and upload on of your first pictures. That will undoubtedly tell you what ISO you were shooting at.
06-24-2010, 02:52 PM   #11
Pentaxian




Join Date: Jun 2009
Location: GMT +10
Photos: Albums
Posts: 10,893
The only K-x that does ISO 50 is this one:
06-24-2010, 03:13 PM   #12
Ira
Inactive Account




Join Date: Mar 2009
Location: Coral Springs, FL
Photos: Gallery | Albums
Posts: 5,216
QuoteOriginally posted by kamocio Quote
Sorry guys. In all likelyhood either I am going to get a heart attack or pull whatever is left of my hair. -)
Pull your hair--we don't want you to have a heat attack.

The lowest ISO on the Kx is 100, with Expanded Sensitivity enabled.

I shoot 90% of my stuff at 100 (simulated as it may be), and if there was 50, I would be on it like white on rice.
06-24-2010, 03:15 PM   #13
Ira
Inactive Account




Join Date: Mar 2009
Location: Coral Springs, FL
Photos: Gallery | Albums
Posts: 5,216
QuoteOriginally posted by rawr Quote
The only K-x that does ISO 50 is this one:
That will also do 25!!!

If they still make that, but I doubt it.
06-24-2010, 03:19 PM   #14
Ira
Inactive Account




Join Date: Mar 2009
Location: Coral Springs, FL
Photos: Gallery | Albums
Posts: 5,216
QuoteOriginally posted by kamocio Quote
If I re-discover it, I'll make sure I have proof and let you know :-)
We're telling you:

Don't lose any sleep over it. The Kx can't do 50.

Maybe you saw 60 for the shutter speed and you're confusing that with the other..
06-24-2010, 03:21 PM   #15
Ira
Inactive Account




Join Date: Mar 2009
Location: Coral Springs, FL
Photos: Gallery | Albums
Posts: 5,216
Maybe you saw ISO 500 and didn't notice the last zero.
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, iso, k-x, pentax help, photography
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Default ISO 200 vs ISO 100 joodiespost Troubleshooting and Beginner Help 6 01-09-2010 05:50 PM
ISO ranges and low iso, techies please look. Gooshin Photographic Technique 7 09-09-2009 07:37 PM
iso 100 or iso 200 kiwao Pentax DSLR Discussion 8 03-05-2009 01:02 PM
Night photography with K10D - High ISO short exposure VS Low ISO long exposure pw-pix Pentax DSLR Discussion 10 02-03-2008 01:37 AM
Tests iso 200 to iso 3200 with k100d Deni Post Your Photos! 0 06-20-2007 05:17 AM



All times are GMT -7. The time now is 10:31 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