Pentax K-x White Indoor High ISO Shots

2009-12-21
pentax k-x white high iso with pentax da 40mm f/2.8 limited

The K-x does extremely well in indoor kind of shooting with Pentax DA 40mm f/2.8 limited. All the following are done with K-x and Pentax DA 40mm f/2.8 limited with all default settings with no post processing. No flash is used. Default NR is medium.

1/80 sec, f/2.8, 40mm, iso 1600, 0 Ev
pentax k-x white high iso with pentax da 40mm f/2.8 limited

1/80 sec, f/3.5, 40mm, iso 2500, 0 Ev
pentax k-x white high iso with pentax da 40mm f/2.8 limited

1/60 sec, f/3.2, 40mm, iso 6400, 0 Ev
pentax k-x white high iso with pentax da 40mm f/2.8 limited


1/80 sec, f/3.5, 40mm, iso 3200, 0 Ev
pentax k-x white high iso with pentax da 40mm f/2.8 limited

1/60 sec, f/2.8, 40mm, iso 6400, 0 Ev
pentax k-x white high iso with pentax da 40mm f/2.8 limited

1/30 sec, f/2.8, 40mm, iso 6400, 0 Ev
This is quite a dark scene
pentax k-x white high iso with pentax da 40mm f/2.8 limited


The K-x is quite excellent in indoor shooting and it works extremely well in the dark with DA 40mm f/2.8 limited, Focus hunting is very minimal and all AF is quite responsive and I feel very empowered to make the shot in indoor. The high ISO performance in K-x is the best that I have seen in Pentax. With raw and more powerful noise handling software, I think the K-x can do even more than the few jpg pictures that I show here.


Impressions & Notes
  • The best high ISO performance that I have seen from Pentax
  • Shots at default Medium Noise Reduction in iso 1600 has no need for noise cleaning for me. It is clean shot.
  • At 3200, I still think it is very reasonable. Detail in the indoor dim light environment is quite good up to 3200. Some loss of detail is noted in 6400, maybe due to the grain.
  • At 6400, some noise becomes visible even in screen resolution. I suspect shooting in RAW and post process in Neat Image or Noise Ninja will have much better outputs than what the jpg that I have shown here
  • Shots at iso higher than 3200 can easily be turned into B&W conversion and you get a film grain like in the outputs.
  • A good Pentax compact digital body that makes the slower DA lens to shine in the dark. It turns my DA 40mm f/2.8 limited into a powerhouse for indoor performer.
  • The K-x is perhaps the best body to lure one to get all DA limited primes. It work as if it can breathe at least an extra stop to all DA primes so that you can easily shoot at Tv for 1/100 sec with f/3.5 with most of my DA lenses in the dark with auto-iso range set for 100 to 12,800.
  • I find the K-x fast and responsive with DA primes though I do find moments in shooting running kid on AF.S that the hunting of AF prevent me from making the shot. I have not tried to turn it into AF.C from the default AF.A mode.
  • I am studying the default AF.A mode and see how the camera chooses between AF.C and AF.S and I am hoping it has some smart design into it.



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5 comments:

Anonymous said...

Hinman, would you say the noise level of K-X at 6400 is similar to the noise level of K10D at 1600? Thanks. Zhou

Hin Man said...

I would think that k-x at 6400 is similar to iso 3200 in K20D. I have not used my past K10D to go over 800 as it is too noisy before. All these are subjective and you need to look for more samples and discussions to draw your own conclusion.

With K-x, I can trust it to have a very clean picture in iso 1600, also quite clean in iso 3200 and very usable and easy to work with noise reduction software in 6400.

will said...

Hi Hin. The K-x results seem amazing! I was wondering if the difference (compared to previous Pentax models) was mainly in jpeg processing? Previous Pentaxes have applied minimal noise control in jpeg compared to the canikons, but the difference falls away when using RAW conversion software. Or is the difference also dramatic in RAW files?

Hin Man said...

@will, I am sure it is not just the RAW vs JPG but rather the different sensor used in K-x. You can research and ask around to confirm if K-x has better high ISO performance than previous pentax. My K20D can be relied on jpg in ISO up to 1600 and 3200 is not something that I am comfortable with. It is acceptable but not as good as those in K-x.

Anonymous said...

great photos shot

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Welcome to Hin's Photo Corner, this is my learning blog on photography, blogging and advertising. And I hope you enjoy your visit. For contact, please comment in blog post or email me directly hintheman at gmail.com.

 

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