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DPChallenge Forums >> Hardware and Software >> Which of these two lenses?
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 05/26/2005 03:35:53 PM · #1
I'm considering a replacement in the near future for my 'kit' lens. I really like the idea of dropping to a f/2.8 (as my 70-200mm IS has shown me just what a difference such can make). These two both seem very promising. They are both priced at the $500 mark ($499/$479 respectively per B&H). Which one and WHY?

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Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Autofocus Lens for Canon Digital EOS

Sigma Zoom Super Wide Angle 20-40mm f/2.8 EX Aspherical DG DF Autofocus Lens for Canon EOS

Message edited by author 2005-05-27 23:31:53.
 05/26/2005 03:44:39 PM · #2
Tamron SP AF 17-35mm f/2.8-4 Di LD Aspherical IF for Canon

$449 after Rebate at BH

Oh you asked which of the 2 sigmas, my bad...
 05/26/2005 03:45:23 PM · #3
Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Autofocus Lens for Canon Digital EOS

more usable coverage.
 05/26/2005 03:48:39 PM · #4
Originally posted by awpollard:
Tamron SP AF 17-35mm f/2.8-4 Di LD Aspherical IF for Canon


Not opposed to a Tamron. But I passed on that one because it was an f/2.8 thru f/4.0. And I am kinda into that f/2.8 all the way thru. Especially for only $20-$50 more.

05/26/2005 04:22:31 PM · #5
For what it's worth, I've read and seen pictures on dpreview forums that the sigma 18-50 f2.8 is noticibly soft at f2.8.
 05/27/2005 09:54:40 AM · #6
compared to what?

is there a real good "lens" review site (akin to dpreview/steve's for cameras)
 05/27/2005 09:57:12 AM · #7
User scoring:

//www.photozone.de

User reviews:

//www.fredmiranda.com/reviews
 05/27/2005 09:59:20 AM · #8
Check out the Tamron 28-75mm f/2.8 Di lens. I have it for my D70 and it is AWESOME! You should be able to get it for about $350.

There are a fwe others on here that have it and love it as well.
 05/27/2005 10:15:13 AM · #9
Reviews on teh 18-50 are few and far between. The best i can find is yes, it is a bit softer than the canon 17-35L at 2.8 vs the canon at F4. Not a fair comparison in many ways. It may vignette a bit at the widest end wide open in test, but that is not noticeable in real world pics.
And if you want 2.8 all the way, it is about hte only game in town.

The tamron 17-35 has very good reviews, and at PhotoZone the two rate so close as to be a toss up. THe Sigma 17-35 2.8-4 does not rate nearly as well. (2.79, 2.76, 1.71 on a 1-5 scale)

I ordered the 18-50 2.8 last night via an ebay dealer (he has 3 more new ones) for $420. Saved $80 over b&h.

If you can be patient for a week (i know i can't!) I can post pics and such.

And cbeller, there is a fairly big difference on the wide end between 18 and 28 on a APS-C dSLR. The 18-50 is = to 28-75 on a full frame or 35mm film slr. That 28-75 or one other one i was looking at in the same zoom range is next on my list. Then a probably 12-24...this game never ends, does it?
 05/27/2005 10:26:47 AM · #10
Wish I could get a Canon 12mm-70mm f/2.8 USM IS L

*lol*

05/27/2005 11:08:44 AM · #11
Originally posted by theSaj:
Wish I could get a Canon 12mm-70mm f/2.8 USM IS L

*lol*


Let's see if I can estimate the price on that.
Twice the range of the 24-70 F2.8L, but it's also super wide angle, and those must be hard to make. Add IS....I'd say close to $3000 for one of those. I dunno, sounds awesome I might want one...

Edit: Now that I think about it, it'd be a much bigger lens with much bigger elements, $3000 would be quite a bargain!

Message edited by author 2005-05-27 11:10:15.
 05/27/2005 11:11:23 AM · #12
Originally posted by cbeller:
Check out the Tamron 28-75mm f/2.8 Di lens. I have it for my D70 and it is AWESOME! You should be able to get it for about $350.

There are a fwe others on here that have it and love it as well.


Check out the reviews of this lens at fredmiranda.com once the site is resuurected. Lots of people compare it optically to the 24-70L and some have even traded their L glass for it because it's 1/3 the price.
 05/27/2005 11:21:32 AM · #13
My guess, is it'd look like a slightly smaller version of the Canon 200mm f/1.8

Canon EF 200mm f/1.8 USM

Message edited by author 2005-05-27 11:22:27.
 05/27/2005 02:46:43 PM · #14
Originally posted by theSaj:
Canon EF 200mm f/1.8 USM

//i9.ebayimg.com/02/i/04/28/0e/c5_3.JPG

I think I wet myself.

Message edited by mk - ginormous picture.
 05/27/2005 03:23:45 PM · #15
;)

Now, why can't they give me a 400mm f/2.8
 05/27/2005 04:54:27 PM · #16
Originally posted by theSaj:
I'm considering a replacement in the near future for my 'kit' lens. I really like the idea of dropping to a f/2.8 (as my 70-200mm IS has shown me just what a difference such can make). These two both seem very promising. They are both priced at the $500 mark ($499/$479 respectively per B&H). Which one and WHY?

-------------------------------------------------------------

Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC Autofocus Lens for Canon Digital EOS

Sigma Zoom Super Wide Angle 20-40mm f/2.8 EX Aspherical DG DF Autofocus Lens for Canon EOS


Probably not the response you are looking for, but have you considered a nice fast prime? The shallow depth of field available at f2.0 and below opens up some creative possibilities and you may find the restrictions of working with a single focal length can sometimes be advantages. The Canon 35mm f/2, 50mm f/1.4, and 85mm f/1.8 are fantastic lenses and very reasonably priced given their capabilities.

Message edited by author 2005-05-27 16:55:30.
 05/27/2005 07:04:08 PM · #17
anyone know anything about tokina lenses
 05/27/2005 07:29:33 PM · #18
bump for help
 05/27/2005 08:03:07 PM · #19
Originally posted by Nusbaum:

Probably not the response you are looking for, but have you considered a nice fast prime? The Canon 35mm f/2, 50mm f/1.4, and 85mm f/1.8 are fantastic lenses and very reasonably priced given their capabilities.


Yes, i did...in fact, that's what i first looked at. But I am looking for something to give me a wide angle and the 35mm on a 20D is equivalent to 55mm. That's pretty far from wide.
 05/27/2005 09:02:58 PM · #20
Originally posted by cbeller:
Check out the Tamron 28-75mm f/2.8 Di lens. I have it for my D70 and it is AWESOME! You should be able to get it for about $350.

There are a fwe others on here that have it and love it as well.


This was my favorite lens. To my mind, the only downside was that sometimes the 28mm just wasn't wide enough.

However... since I bought the 20D with the Canon 17-85 EF-S IS lens, I've switched to that lens and haven't hardly used the Tamron since. The 2.8 was nice. But what I discovered in comparing the two lenses is that the Canon lens is much sharper!

So now, about the only time I pull out the Tamron is if I need the 2.8 due to low light. And even that doesn't happen too often because ISO 1600 on the 20D is so clean.

I highly recommend it. You get a nice sharp lens, with a good range even on a 1.6x sensor. And you get image stabilization too.
05/27/2005 09:54:42 PM · #21
For me, I'd stay with the kit lens and get a 50mm f1.8. Really cheap, really fast, and really sharp from what I heard and I don't really use my 18-50 under 50mm really often in my everyday shooting.
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