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03-22-2014, 04:08 AM   #1

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Sigma 50mm 2.8 Macro EX vs. Da50mm 1.8 $200. lens on K30 body Read more at: http://w

I know i've asked this question before but only received one answer. Can someone help me out with my deicision;
I've spent much time researching the new "plastic" DA50mm 1.8 lens, with regard to using it as a macro lens.
My Sigma 50 is a true macro lens. I have taken many PPG shots with it.
Having almost decided on buying the DA50 1.8, I reflected back on my many photo albums of macros taken with my Sigma. Excellent bokeh, color and sharpness.
MY QUESTION IS THIS: With the enhanced abilities of the remarkable new K30: increased ISO, 16megapixels for much higher resolution than my old K100D:
Can I expect to get more keepers from my Sigma using this K30. I'm thinking that its enhanced capabilities might just justify my sticking with my Sigma 50 Macro. .
Any opinions will be appreciated. Freddy

P.S. I still have my DA35mm 2.4 plastic lens which works really great in low light and makes a excellent wide angle lens for photos I take in my living room.
I have not yet explored its bokeh possibilities because of the terrible weather we've been having in New York.

Read more at:

Last edited by fevbusch; 03-22-2014 at 04:11 AM. Reason: wanted to add a sigma shot
03-22-2014, 05:29 AM   #2
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Your sigma is a bona fide macro with a max magnification of 1x, so you can fill the frame with something as small as 2.37cmx1.57cm.
The DA50mm's can only hit a maximum magnification of 0.15x, meaning you can 'fill the frame' with an object aproximately 16cmx10cm (or larger of course).

Unless your use for a 'macro lens' is for subjects larger than 16x10cm, don't even think about getting rid of your sigma.

With the k30d, you can comfortably bump the iso a few stops compared to your k100d and the shake reduction is a little better, this can help with your 'keeper rate' from a technical standpoint if you're hand holding. However, for close up macro stuff you won't beat a sturdy tripod or electronic flashes or other good technique that trumps having high iso or SR available. If you're one to 'pixel-peep', you'll find the k30d is more demanding then the k100d if you're after pixel-level sharpness, but there is a payoff in level of detail captured.
03-22-2014, 09:05 AM   #3

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Original Poster
Brian, I can't thank you enough. You gave me a great education on the comparative values of both lenses, so keeping the Sigma is defiinitely the right move for me.
I have my wonderful little Da35 2.4 plastic lens for low light indoor shooting and which is also terrific for outside shots, walking around. So I am content. Regards, Freddy

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