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03-04-2017, 05:39 PM - 1 Like   #1
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DA*200 and F*300 low level light test

I currently own both the DA*200 and F*300 Pentax lenses. I purchased the DA*200 specifically for low light level performances because of the F 2.8 aperture. (And it does perform well I might add.) However after doing some indoor low light testing this evening in my basement I found out to my surprise that the F*300 is quite a bit sharper at F4.5 than the DA*200 at F4.5. Most of my low light shoots with the DA*200 have been at about F4.0. So now I'm wondering if perhaps I do not need the DA*200 for low light indoor shooting and maybe should start using the F*300 instead. Or would the DA*200 lens still be better because as we all know sharpness isn't everything. Yes I know the focal length is different but not important to me as I have a DA*50-135 for closer shots if I need it.

The only reason for removing the DA*200 would be to in effect get more use from my lonely F*300 and to "thin the herd" as it were.

DA*200 Shot outside at night but lit with outdoor lighting at F4.0 1/200sec. ISO 640

F*300 Indoor shot with lighting. F5.0 1/200sec. ISO 4000

03-04-2017, 08:49 PM   #2

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Well, I find 200mm easier to handhold compared to 300mm so I'd keep the 200. Kind of shocking that the DA*200 is not as sharp as the F*300 at f/4.5 though.
03-05-2017, 01:08 AM   #3
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Sharpness at iso 4000 is relative...

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