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10-28-2009, 07:52 AM   #1

Tamron 70-300 vs. Tamron 28-300


i did a lot of searching in this forum and found a lot of threads about this two lenses. But none that compares these two. Right now i own a 28-300 and since I replaced the kit lens, I don't need the 28-70mm of the 28-300 any more. So I was wondering if the the 70-300 is the better budget lens compared to the 28-300.

If I look at these two links:

Tamron Lens: Zooms - Tamron 28-300mm f/3.5-6.3 XR Di AF (Tested) -!
Tamron Lens: Zooms - Tamron 70-300mm f/4-5.6 Di LD Macro 1:2 AF (Tested) -!

(look at the blur index) it seems that the 70-300 is the sharper lens.

So if you need the tele just in a few cases and because of that you're looking for a budget lens, would you prefer the 70-300 over the 28-300?

Best regards

10-28-2009, 08:03 AM   #2
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Yes, the Tamron 70-300mm is notably sharper than an older superzoom at the long end, but does have some CA in high contrast shots, unfortunately. The 55-300mm bests them in both respects if you can accord it. I haven't compared the two, but you can check out some sample pictures.
10-28-2009, 10:51 AM   #3
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70-300is dedicated tele lens with usefull macro capability, while 28-300 is supezoom and with IF if I remember correctly. That means it "looses" it's reach when close focusing due to it's internal AF. 70-300 on the other hand focuses externaly (it extends while focusing) and can deliver 1:2 "macro".
My wife has 70-300 and she really likes the lens. Though on GX20 it's showing the weaknesses.
That being said I'd still choose 70-300 over superzoom if reach is what matters. And even more so if you have 28-70 covered by better lens already.

10-28-2009, 02:26 PM   #4
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I had the 70-300, and I found that it was lacking out beyond 200 mm. Now it may be better than what the 28-300 had at that end, but it was failing in comparison to my old Panasonic superzoom camera at a similar range (i.e. the equivalent 200+ mm range).

I ended up replacing the 70-300 with the 55-300 because it has noticeably sharper performance all the way out to 300 mm, and I thought it was relatively affordable for its quality.

However, and this probably most important, shooting at the 250 mm range was quite important to me. If you are rarely shooting out that far, the 70-300 is probably fine as it does great in that 70-200 mm range, although I do hate the thought of restraining my use of a lens to a subset of its full range. I don't expect perfect sharpness for what I am spending, but I like it to be close enough that I can feel comfortable using the 300 mm zoom for at least snap-shot purposes (i.e. 4 x 6 and 5 x 7).


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