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View Poll Results: Which budget telephoto?
Pentax DA 50-200mm f/4-5.6 ED 3350.77%
Sigma AF 70-300mm f/4-5.6 APO DG macro 1421.54%
Tamron AF 70-300 F4-5.6 Di LD Macro 1827.69%
Voters: 65. You may not vote on this poll

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10-29-2007, 09:23 PM   #1
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Another "which telephoto" lens thread

Well I don't have a telephoto lens in my kit at all at the moment and I am sort of torn between these three budget lenses.

Pentax DA 50-200mm f/4-5.6 ED
Sigma AF 70-300mm f/4-5.6 APO DG macro
Tamron AF 70-300 F4-5.6 Di LD Macro

They all seem to get "good value for money/the sort of quality you would expect for a lens in this price range" reviews. All of them seem ok, with the Sigma and Tammy giving that extra bit of reach that may come in handy. Anyone care to comment on which one they would buy

Is the Tamron 70-200mm f2.8 ever going to see the light of day?

10-30-2007, 02:14 AM   #2
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You don't say what you want it for, but I think, from reports, you'd be happy with any of them.
10-30-2007, 02:28 AM   #3
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Get the Tamron if you need the 300mm reach, if not get the Pentax.

The Tamron 70-200 is likely to be released, but not untill next year, and for Pentax mounth maybe not untill summer it seems.
10-30-2007, 03:11 AM   #4
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You're forgetting the Tamron/Pentax 18-250mm.
It should have been in your list.

- Bert

10-30-2007, 03:59 AM   #5
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Not really, because those are not teleporto zooms, those are superzooms.
10-30-2007, 06:40 PM   #6
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I can't offer an opinion on the Tamron, but I have comparison shots with the Pentax vs Sigma here:
10-30-2007, 08:29 PM   #7
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I have used Tamron 70-300 non-DI version and sold it due to its size. That said, Tamron is a really good lens, up to about 220mm. Any focal length longer than that you will need a tripod because you will need to stop it down a bit to get good shots. And not to mention it has also got 1:4 (or was it 1:2) Macro. Here is a photo taken with it:

If you don't need 300mm and don't particularly need macro with a telephoto lens and want light-weight, then 50-200mm is a better choice.

Oh, you forgot about F70-200/4-5.6 and A70-200/4 which are really nice telephoto zooms too.


10-31-2007, 11:32 AM   #8
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I have both the Pentax and the Tamron.. I think it comes down to"horses for courses!".
.If you want the extra reach, the Tamron would fill the bill nicely. I am very pleased with the results from this lens(macro included). One caution, it does suffer some Purple Fringing in bright light i.e sun reflected off water.

. The Pentax is a great lens. lightweight, with good sharp results and quality bokeh.

If you chose according to you need, I dont think you would be disappointed in either of these 2 lenses.
10-31-2007, 11:49 AM   #9
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I think that it is a tricky poll since most of the people doesnt have the three lenses. I bought the Tamron and it is way better than I thought in the long end. So my vote goes for the Tamron (recognizing that I didnt use the other 2)
10-31-2007, 12:52 PM   #10
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I have no experience with any of those lenses. But I have experience walking around for a few days with just a 70-210 on the K100D.

Basic observation: there were plenty of times I wished I could get to 50mm, but no time I wished to have more than 210mm. Your mileage and walking around habits may differ, but for me that 50mm on the Pentax would sway me.
10-31-2007, 02:48 PM   #11
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I have the tamron, which replaced the Schneider version of the 50-200 (re-badged pentax)... The extra reach of the tamron puts it in front (imho) ....I have no experience with the sigma.
10-31-2007, 05:38 PM   #12
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Having had experience with the Tamron 75-300 in the store I worked at (as a rebadged Quantaray lens) and shooting experience with the 50-200, I am very pleased with the 50-200. It produces crisp images and is small and fast to focus (on the K10D, anyway). Unless you really need the extra length of the others, go with the Pentax.
11-01-2007, 04:47 AM   #13
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I have the Tamron and it's a good performer especially for the price (I picked mine up new for £80). It's light, pretty resistant to flare and I find it performs best at around f/8. The extra reach to 300mm is useful but I find CA at this length unbearable with high contrast shots. That said, it never leaves my bag.
11-01-2007, 05:09 AM   #14
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From my reading here on these forums, it seems that each of the three lenses has different pros and cons, but they balance out. In the end you'll be equally happy with any of these three good lenses, but also aware that you gave up something.

I have the Sigma 70-300, and mine's not even the APO. I didn't get the Pentax because I really wanted the extra reach. Yeah it loses a little contrast at 300mm (I'd say less contrast is more appririate for this lens than "soft"), but when you need to get closer, you need to get closer. The Tamron has the same issue of reduced IQ over the long end if its range. But if you compare at 200mm, the Sigma and Tamron are both very sharp, and both are faster at that focal length then the Pentax (my Sigma is f/4.5 at 200mm). I ultimately chose against the Tamron because I was afraid of the CA...but I think I was blowing it out of proportion. Of course, the Pentax has the huge advantage of being much smaller and lighter. That can be important, too.

None of the three is perfect, but they're all very good. You won't regret any of them...but I voted for the Sigma =)

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