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04-24-2008, 01:14 PM   #1
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Standard Zoom Choices

I'm after a standard zoom and have narrowed it down to 3 lenses. In no particular order;

Sigma 24-70mm f/2.8 (I know its huge, size is not an issue)
Sigma 24-60mm f/2.8
Tamron 28-75mm f/2.8

IQ is the most important thing
Macro would be nice, I'm not expecting 1:1, just basic close-ups.
Family/friends portraits and maybe some part-time portrait work in the future.

TIA.


Last edited by metalfab; 04-24-2008 at 01:30 PM.
04-24-2008, 01:46 PM   #2
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Shameless Plug

Here are pics from the Tamron 28-75, great lens. Although I can't compare it to the other two.









And the good news is I have one for sale in the Marketplace right now

https://www.pentaxforums.com/forums/photographer-s-marketplace/25455-fs-tamro...-50-200-a.html

Seriously, though, it is a very good lens, no matter who you buy it from.

Todd
04-24-2008, 02:15 PM   #3
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QuoteOriginally posted by metalfab Quote
I'm after a standard zoom and have narrowed it down to 3 lenses. In no particular order;

Sigma 24-70mm f/2.8 (I know its huge, size is not an issue)
Sigma 24-60mm f/2.8
Tamron 28-75mm f/2.8

IQ is the most important thing
Macro would be nice, I'm not expecting 1:1, just basic close-ups.
Family/friends portraits and maybe some part-time portrait work in the future.

TIA.
I was in the same position in december. Took the tamron.

ultimately the decision will be more based upon your total system, not just that one lens.

Issues to review are

- what lens do you have below 24/28 mm (I have pentax SMC-FAJ 18-35 and sigma 10-20)
- what is your wide angle (I use 10-20mm sigma)?
- are you satisfied with having a gap potentially between 20mm and 28mm ? (I can live with it and also fill it with the 18-35)
- what other filters do you have , specifically circular polarizers and graduated ND filters for landscapes? (I had 3 67mm ones from my 18-35 this made me go for the tamron ultimately)

the issue in the end will or should be your system, all are fine lenses, the 24-70 has a very large (and somewhat non standard filter)
04-24-2008, 02:23 PM   #4
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Tammy!! Tammy!! Tammy!! Tammy!!

04-24-2008, 02:48 PM   #5
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Original Poster
QuoteOriginally posted by Lowell Goudge Quote
I was in the same position in december. Took the tamron.

ultimately the decision will be more based upon your total system, not just that one lens.

Issues to review are

- what lens do you have below 24/28 mm (I have pentax SMC-FAJ 18-35 and sigma 10-20)
- what is your wide angle (I use 10-20mm sigma)?
- are you satisfied with having a gap potentially between 20mm and 28mm ? (I can live with it and also fill it with the 18-35)
- what other filters do you have , specifically circular polarizers and graduated ND filters for landscapes? (I had 3 67mm ones from my 18-35 this made me go for the tamron ultimately)

the issue in the end will or should be your system, all are fine lenses, the 24-70 has a very large (and somewhat non standard filter)
Thanks Lowell,

I find I don't need the focal range below 40mm. The longer end (70mm) appeals more that the wide end. I just use standard UV filters. Polarizers, etc. don't interest me much. I priced the Sigma 24-70 and its $500 Canadian + $80 for the Hoya filter + tax at the local shop. The Tamron was about the same, the filter was cheaper. Total difference was about $40-50.

I've heard the build quality of the Sigma is better, fact or fiction?

-
04-24-2008, 03:31 PM   #6
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QuoteOriginally posted by metalfab Quote
Thanks Lowell,

I find I don't need the focal range below 40mm. The longer end (70mm) appeals more that the wide end. I just use standard UV filters. Polarizers, etc. don't interest me much. I priced the Sigma 24-70 and its $500 Canadian + $80 for the Hoya filter + tax at the local shop. The Tamron was about the same, the filter was cheaper. Total difference was about $40-50.

I've heard the build quality of the Sigma is better, fact or fiction?

-
I have 2 sigmas, the 10-20 and the 70-200 F2.8. The Tamron fits in between the two.

Build quality of these two seems slightly better, perhaps a little more subjective "feel" than anything else. I have to admit the 70-200 is a VERY well put together lens. Maybe build quality is the wrong term, because the tamron does everything it should, and is solid, but I guess the design where the front element extends a long way outt when you zoom, makes it seem a little flimsy. That I know is tamron's design approach, but it is the only lens I have that does that. Pentax has a different design where the lens is longer physically at both extremes than it is in the middle.

Overall I like the tamron, and it was cheaper when I bought it then the sigma, plus, when you consider I use it more for intermediate to wide, polarizing and ND filters that I already owned from my pentax 18-35 made a huge distance in my system price.
04-25-2008, 07:41 PM   #7
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If I was in the market for one ... I'd go the Tamron.

Although i came across a deal for a Sigma 28-70 f/2.8 EX DF lens (not exactly new) ... and it has been very good so far (it is large and heavy though.)

I am not sure what the orther Sigma's are like though ... but I'd say they are comparable (ie: a little soft at f/2.8 at the long end).
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