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10-02-2009, 10:54 AM   #1
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Need your sugestion about the lens DA 70mm or 40mm

I have Sigma 17-70mm/ DA21mm/ FA 50 1.4/DA 50-200mm lens
I am planning to sell my DA21mm and FA 50 1.4 to collect money for a DA 70mm or DA 40mm.

Which one better 40 or 70 ?

Thanks

10-02-2009, 11:09 AM   #2
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You can't replace a 40mm with a 70mm or vice versa, honestly. All depends what your shooting needs are and how you see the world.

Both are excellent lenses either way.

QuoteOriginally posted by dreamnet Quote
I have Sigma 17-70mm/ DA21mm/ FA 50 1.4/DA 50-200mm lens
I am planning to sell my DA21mm and FA 50 1.4 to collect money for a DA 70mm or DA 40mm.

Which one better 40 or 70 ?

Thanks
10-02-2009, 11:10 AM   #3
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Cannot really compare since I only have the 40mm, but it's a stellar lens, small, portable, fast focussing...

Me think I would keep the FA , sell the other lenses and buy a da*50-135 (or the new-ish sigma 70-200 if longer reach is needed)

Max.
10-02-2009, 11:48 AM   #4
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Whichever one you buy, you'll be limited (no pun intended) by not having the other. Let's say you're shooting indoors--the DA 40 will be much more useful in general (unless you are doing serious portrait work or something like that). Let's say you're going to a zoo--the DA 40 will give you a wider perspective on scenes, while the DA 70 will obviously give you more reach if you need it. Let's say you're going to a playground with your kid (if you have one...)--with the DA 40 you'll again have a wider perspective, but you'll need to get up closer to your subject, while the DA 70 will give you more distance for better candids and the like (same with street shooting).

I have both, and they are both great. The DA 40 is probably more useful and versatile due to its wider focal length, but I think the DA 70 is simply an incredible lens and probably prefer it to the DA 40 by a bit. Of course, if I go out with my Tamron 28-75, then I have all of this covered by one lens and still get great IQ, but I do still love the primes.

10-02-2009, 11:56 AM   #5
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I want the new lens do most job of shooting portraits.
and keep sigma 17-70 with wide range, although i know prime 21mm is a good lens to keep, but for the tight budget , i have to let it go. and change my own lens as

sigma 17-70 / DA 70mm / DA* 50-135 or DA 50-200

Does this more resonable ?
10-02-2009, 12:05 PM   #6
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are you unhappy with the sigma at 40mm or 70mm?

if so, what are the problems? if not, then why do you want to spend money on another lens?

which FL do you use more frequently on the sigma, 40mm or 70mm?
10-02-2009, 12:09 PM   #7
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For portraits, DA* 50-135 along is enough. So I'd say 17-70 and 50-135.
10-02-2009, 12:23 PM   #8
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You can't go wrong with either DA40 or DA70. I have both lenses. I can't tell if one is better than the other -- I don't have the eye to judge, anyway.

How is your Sigma at 40mm and at 70mm? Perhaps that should dictate the choice more than anything else. You seem to have a lot of overlap as is.

10-02-2009, 01:04 PM   #9
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i need to get some lens out
10-02-2009, 01:08 PM   #10
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DA 40 is excellent. One of these days the DA70 will be acquired
10-02-2009, 01:12 PM   #11
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The DA70 is one of my favorite lenses. The DA40 is very good, but all the same I feel kind of indifferent about it.
10-02-2009, 01:26 PM   #12
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I have a DA 40mm, very compact , sharp, and fast. But you can get a Tamron 28-75mm constant f2.8. It's sharp & fast as regular Prime. and it can even replace your Sigma. I just got mine, i am planing to keep the Tamron and sell the FA 50mm and DA 40mm, because this lens pretty much covers both. The best of the DA 40mm is it's size. make my K2000 pocket size(jacket)
10-02-2009, 01:27 PM   #13
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so which one is My BEST choice ?

1. Sigma 17-70 / DA* 50-135

2. DA 21mm / DA* 50-135

3. Sigma 17-70 / DA 70 / DA 50-200

Last edited by dreamnet; 10-02-2009 at 01:39 PM.
10-02-2009, 01:43 PM   #14
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# 2, primarily because I like primes on anything sub-50mm.
10-02-2009, 02:20 PM   #15
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QuoteOriginally posted by dreamnet Quote
so which one is My BEST choice ?

1. Sigma 17-70 / DA* 50-135

2. DA 21mm / DA* 50-135

3. Sigma 17-70 / DA 70 / DA 50-200
Actually what you have is really good too! The FA 50 is a great lens, especially for the price.

The 50-135 definitely has great IQ for a zoom, and would give you lots of classic portrait lengths in one go.

But it's huge (about half a pound heavier than your Sigma, and probably as long as the Sigma fully extended, but its length doesn't change), maybe a little intimidating to subjects, and doesn't focus as fast as a prime (mostly because of the SDM). And nothing focuses as fast as the DA 70 (except the DA 40), and it's tiny, so easier to maneuver.

So it depends on how you work, and how strong your arms are
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