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Old Aug 13, 2009, 11:52 AM   #11
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Hi Roy,

I have the older version of the Sigma 70-300 APO. Works fine for me. I had the cheaper version before and it was like the Tamron with the fringing in high contrast areas.

I would not get the Newer versions as I prefer the older quality in lenses. Needless to say that any decision is up to you. I have the Sigma and prefer it to the others mentioned.

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Old Aug 13, 2009, 7:36 PM   #12
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[QUOTE=alexfoto;990952]For cover a similar range on Pentax camera with a "small budget solution" the Pentax 55-300 mm could be a better choice ..


that's why i'm looking at the 70-300.. I'm just broke and I'm still in the doghouse for the the k20d purchase.
the $$ for the 55-300m is well out of range
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Old Aug 14, 2009, 7:52 AM   #13
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Roy, my Sigma 70-300 APO DG works flawlessly. Here are 2 samples



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Old Aug 14, 2009, 8:57 AM   #14
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With a 50-200 you lost 100 mm (but with a crop the problem is less bad that what you think - at least in general ...).
Better control about CA and flare.

Sincerely at least in Italy i think the price of the 55-300 has no sense at all.
400 euro with italian warranty!
I don't think in any civilized Country the lens are so expensive!
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Old Aug 19, 2009, 1:48 AM   #15
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I have the non-APO Sigma 70-300mm and have had it since I first bought the DL2 about 3 years ago.

I was going to change it for the APO version, but to be honest there doesn't seem to be that much of a difference between them.

Paid around 50 for it with box and instructions, when you could get bargins on eBay.

I would only change it for a faster lens.

The macro option on it works real well for those times when the proper macro rig is indoors.

I have used it at falconry days with no problems
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Old Aug 28, 2009, 1:21 AM   #16
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Default Got Sigma APO here

I have got the Sigma APO version and been happy with it. I used to have the Tamron (the non-Di version) too but not at the same time and I find Sigma one easier to hand-hold.

Some sample shots:






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Old Aug 30, 2009, 3:33 AM   #17
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thanks all!
i've had a couple of these before they started the digital coatings.. i just might try the tamron..
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Old Aug 30, 2009, 4:28 PM   #18
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Quote:
Originally Posted by robar View Post
how about the
PENTAX SMC FA J 75-300mm f4.5-5.8 AL
The construction of the DA 55-300 is much better along with the overall sharpness, however the FA is not bad at all.

Here is an example from last summer off of Hawaii....
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Old Aug 30, 2009, 5:49 PM   #19
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nice shot of the tug. i had a roommate for a couple of years that was a chief eng.
this guy could fix anything!!!!
from the the 2 hp gas motor to the walkin fridge..
he worked 30on and 30off.. gawd did i need a break after his 30off.. after all it was New Orleans..
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Old Aug 30, 2009, 7:52 PM   #20
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Roy, sorry I diodn't see this thread till just now, although at this point I doubt if I can add anything that hasn't already been said. I have the Sigma 70-300 APO DG, and I'm happy with it. It's a bit soft at 300 mm when wide open at f 5.6, but if you stop down to f 8 or f 11, the image is quite sharp (at least sharp enough for me). I realize this means the lens is only nice and sharp at its longest setting in bright sunny conditions but hey, life is full of compromises. For the money, I think it's a very good lens. I have no familiarity with the Tamron lens, but I'm sure it's a fine lens as well.
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