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04-13-2009, 01:42 PM   #1
racinsince55
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DA 16-45 f/4 -vs- DA* 16-50 f/2.8

Who here has had both of these lens and prefers the 16-45 over the 16-50?

Is the SDM and 1/2 stop worth the money for the DA*?

Is this has been asked before, please forgive me but indulge me anyway.

04-13-2009, 01:53 PM   #2
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F2.8 is a full stop faster than F4
04-13-2009, 01:54 PM   #3
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its all about where and what you are goint to shoot.

2.8 + weather resistant will allow you to use this lens almost everywhere indoor or outdoor, rain or sun, and so on

also 2.8 will give you better DOF for portraits.

16-45 is super sharp and a great lens for out door and its also cheaper and lighter
04-13-2009, 02:03 PM   #4
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QuoteOriginally posted by racinsince55 Quote
Who here has had both of these lens and prefers the 16-45 over the 16-50?

Is the SDM and 1/2 stop worth the money for the DA*?
Yes. Especially as it is 1 full f-stop faster.


Ben

04-13-2009, 02:22 PM   #5
racinsince55
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QuoteOriginally posted by cousinsane Quote
F2.8 is a full stop faster than F4
I stand corrected. Old minds sometimes get things wrong.
04-13-2009, 05:37 PM   #6
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The silent focus is nice, but it's not much faster. Given the faster lens, autofocus should be slightly better in dimming light too.

The 16-50 is: 65% heavier than the 16-45 (600g vs 365g)
The 16-50 has: 9 aperture blades rather than 8
The 16-50 has: a really nice focusing ring (compared to a normal DA lens)

One aspect of the 16-50 which might be a disadvantage for you - it casts a shadow with the built in flash.

I'm really quite thrilled with the 16-50 and am glad that I bought it - I didn't actually buy it for f2.8, but instead for the weather sealing, and proper focusing ring. Having said that, I have some shots of family moments taken indoors I never would have been able to pull off with an f4 lens (without a flash), so I'm really glad that it goes to f2.8, even if I don't use it as such most of the time.
04-13-2009, 05:50 PM   #7
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Yes, I started a little fire when I compared these two lenses (only in MTF data)...
DA* 16-50 vs DA 16-45 in IQ

My conclusion is a lens is a whole lot more than just MTF data - and the comparison of these two lenses exemplifies that. I much prefer the 16-50 despite what all the numbers say...
04-13-2009, 05:56 PM   #8
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OrenMC just started a similar thread, there are some pictures to look at too I posted there stating how unequivocally happy I am with the lens.
https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/56652-da-16-50mm-hysteria.html

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