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08-30-2008, 11:30 PM   #1
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Best Pentax DSLR body with Bigma ?

Hi all !
I just ordered a new Bigma in complement / replacement of my actual 50-135 DA*, Sig. 135-400 (to be sold...) and Sig. 500 f/4.5 .
What is the best Body/Lens couple to use as well for better IQ , sensibility and S/N ratio :
- K10D 10 Mp Cds + Bigma or K20D 14,6 Mp Cmos + Bigma ?
For exemple , I get much better results with 50-135 DA* mounted on K20D than K10D .
K10D seems a little bit better whith Sig. 135-400 and no significative diference between K10D and K20D coupled with Sig. 500 f/4.5 .
Thanks for advices / experiences

Last edited by Edgar Lefuneste; 08-31-2008 at 12:00 AM.
08-31-2008, 03:49 AM   #2
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The K20D has a better sensor, so I don't see why not to go with the K20D.
09-02-2008, 12:35 PM   #3
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Whatever DSLR you go with, be sure to add in the battery grip too as the bulk of the the 'Bigma' will upset the overall balance making the setup front heavy. The battery grip restores the balance and makes for a much more satisfying shooting experience.

I use the Bigma with a Samsung GX-10 and Grip to great effect.
09-03-2008, 12:05 AM   #4
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Thanks for yr opinions. But I'm mainly interested whith the relation between sensor definition according to lens definition .
For exemple, few month ago I used Tamron SP 300mm f/5.6 monted on K10 for pretty good results , same lens, on K20, produced very poor resolution and IQ.
This problem caused by sensor/lens definition, photosites size and diffraction characteristics, occurs quitte often when sensor definition is highter than lens one and become critical with 5 Ám photosites sensor.


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