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View Poll Results: Sigma or Tammy 70-300?
Sigma 70-300mm F4-5.6 APO DG MACRO 1133.33%
Tamron 70-300mm F4-5.6 LD Di MACRO 2266.67%
Voters: 33. You may not vote on this poll

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12-09-2008, 06:14 AM   #1
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Tammy 70-300 LD Di MACRO or Sigma 70-300 APO DG MACRO

I want to get one of these as it's a quick fix to my 300m problem, but i'm not sure which one to get. Both have LD glass in it but i'm not sure how much the tammy has and each are almost identical in specs par the macro mode

I've looked around and cant find any comparrisions of the two, what is better Tammy or Sigma?

Thanks guys

Have a good one!

12-09-2008, 09:52 AM   #2
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Any reason you're not considering the Pentax 55-300? Common theme amongst people who have used the Tamron and/or Sigma, and the Pentax, is that the Pentax 55-300 is the superior lens. It's pricier, but perhaps worth the price difference to you. As between the Tamron and the Sigma, from my reading, I'd guess that people generally prefer the Tamron. Tamron is apparently sharper, while the Sigma doesn't have the bad purple fringing like the Tamron.
12-09-2008, 02:21 PM   #3
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I was in the same boat as you just a few weeks ago. Either the tamron di 70-300 or the sigma 70-300. In the end I decided to get a flash and wireless triggers. Why? Well, the 55-300 is a much better lens and costs about $300. So why bother buying a $150 lens now when I could have a much better $300 lens in a few months?
12-09-2008, 02:39 PM   #4
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I bought my copy of Tamron 70-300 Di LD 1:2 Macro used for about $90. I think few other people sell it for about $100 to $120. For me, it is worth an investment if you are NOT into the best lens for a higher price. I am not arguing that it is wrong to go for DA 55-300. If you want better IQ and twice or three times (as compared to used) Tamron & Sigma, the DA 55-300 is a better lens to get. But if you can settle for PF in Tamron or some other negatives about the Sigma, you gain the 1:2 Macro which is critical to consider. You are not missing a whole lot of things in buying a half price lens but you indeed gain the 1:2 macro in the long end of the zoom as in 180-300mm in the Tamron Zoom. PF is more apparent in Tamron and you can cope with it in avoiding high contrast area and shoot in smaller apertures as in f/8.0 instead of maximum apertures, the lens is highly recommended by me with known caveat with post processing need in PF.


Thanks,
Hin

12-09-2008, 10:04 PM   #5
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hmmm i'm weighing up whether to get the tammy as well.. don't use much tele end but with pending price rises on lens for Tamron after Xmas might be nice to grab one now
12-09-2008, 11:33 PM   #6
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I opted for the Tamron a couple of weeks ago. Prices went up on Sigma here around then and at that point I had no clue which was better. I've been happy with the Tamron so far.
12-10-2008, 12:33 AM   #7
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This thread prompted me to hit the order button on Tamron 70-300mm Macro
12-10-2008, 06:17 AM   #8
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I voted for the Tamron, mainly because of price. The Tamron is so inexpensive, the Sigma is not so inexpensive. I figure if you can afford the Sigma APO, put in just a little more and get the DA 55-300. I have the Tamron, and my advice is get the Pentax telezooom and add a Raynox 150 later for real macro.

12-10-2008, 10:38 AM   #9
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I don't think you will be wrong in getting either the Tamron or Sigma. Both do well in the area of macros. For tele, I think the Tamron is a bit sharper. Overall, it will be left to personal choice as Sigma is way better in terms of PF/CA control. The Tamron is known for PF, it is one area that buyers need to be most aware of.


Last edited by hinman; 12-11-2008 at 03:47 PM.
12-11-2008, 02:20 PM   #10
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So where is this PF everyone keeps talking about with the Tamron? Try as I may, I just can't get mine to produce this effect!
12-11-2008, 03:41 PM   #11
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QuoteOriginally posted by Ahab Quote
So where is this PF everyone keeps talking about with the Tamron? Try as I may, I just can't get mine to produce this effect!
I honestly don't think you try enough to see the PF. While I recommend the lens, the frequent showing PF/CA can be a turn off to some for the lens.

PF with Tamron 70-300 Di LD 1:2 Macro

1/640 sec, f/7.1, 300mm (420mm with TC), iso 400, 0 Ev
taken with Tamron 1.4x Tc
PF is aggravated by use of the TC



As I noted in my blog post, some PF can be addressed to some degree easily in post processing. I don't have the full set of skills to fix as I am NOT a pp person. But the tools are available to help. If you can manage well with PF, this lens can do wonderful things. Here are the specific measures that I have been using for avoiding PF with the Tamron lens

Specific measures:
  • First & foremost, pay close attention to high contrast areas. Make multiple spare shots with a different angle to skip the highly contrast areas
  • Go for smaller apertures as in f/8.0 instead of wide open apertures. When used with the TC such as the Tamron 1.4x, more PF are seen and I tend to forget the one stop loss of aperture.
  • Use higher ISO or shutter speed to cater the need to avoid wide open apertures
  • Some PF are not easily fixable while others can be easily addressed with few clicks in your editor
  • enjoy or cope with the PURPLE color instead of hating it


Tamron 70-300 f/4.0-5.6 Di LD 1:2 Macro












Purple is pretty -- my last point
purple around the edges, either the flower or PF, don't know
just like it for what it is



Last edited by hinman; 12-11-2008 at 04:53 PM.
12-11-2008, 04:10 PM   #12
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QuoteOriginally posted by Ahab Quote
So where is this PF everyone keeps talking about with the Tamron? Try as I may, I just can't get mine to produce this effect!
From having this discussion many times, I think it's a matter of sensitivity to the problem. I only consider it an issue if it messes up the subject. I'm not too concerned with background effects. But a bit of purple seems to drive some people up the wall. I have some photos online that I consider just fine, but the small amount of PF in these images bothers some people. Picasa Web Albums - Dan - Tamron 70-300...

PS: I don't use the Tamron any more, mostly because I prefer the colour and contrast from the 55-300. My Pentax is sharper than my Tamron too. I thought I'd keep the Tammy for macro, with and without the Raynox 250, but I find the Pentax + Raynox delivers nicer macros than Tamron + Raynox, so the Tamron is strictly on backup duty. The 55-300 is a better lens, but the Tamron is a fabulous value, no doubt about it.
12-11-2008, 04:44 PM   #13
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QuoteOriginally posted by jeffrey r Quote
Any reason you're not considering the Pentax 55-300? Common theme amongst people who have used the Tamron and/or Sigma, and the Pentax, is that the Pentax 55-300 is the superior lens. It's pricier, but perhaps worth the price difference to you. As between the Tamron and the Sigma, from my reading, I'd guess that people generally prefer the Tamron. Tamron is apparently sharper, while the Sigma doesn't have the bad purple fringing like the Tamron.
I am about to order Tammy, wondering if Pentax 55-300 has 1:2 macro abilities. At photozone.de I didn't see a sharpness superiorty of Pentax over Tamron. Also wondering what makes you say Pentax is superior lens over Tamron Jeff.

Best wishes.
Can
12-11-2008, 10:24 PM   #14
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QuoteOriginally posted by Ahab Quote
So where is this PF everyone keeps talking about with the Tamron? Try as I may, I just can't get mine to produce this effect!
me neither.. just got my 70-300mm lens today and tested from F/4 onwards and no PF i can see although i was using ISO betwen 160-800
12-11-2008, 11:01 PM   #15
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If you two can not find any PF/CA with yours

Stop looking... it is there... or it will be there, but unless someone points it out to you in your own shots then you may never have an 'issue' with it.

I see it often in mine. I now know before I take a shot, if the conditions are there to get it...
So I try and minimize those conditions or I use another lens.... But as Hin showed, it can be a fine shooter.

Just took this one the other day...


And some old ones, when I like it... I like it just fine.




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