Best tele lens under $600

Started Nov 19, 2012 | Discussions thread
jitteringjr
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Re: Best tele lens under $600
In reply to bronxbombers4, Nov 21, 2012

bronxbombers4 wrote:

bronxbombers4 wrote:

jitteringjr wrote:

BobT wrote:

Nothing stupid. I still have it. Just was looking to go a bit longer w/t a TC.

Good to hear that Bob. W/t = without? You can crop with your 70-200/4 IS out to the 300mm framing and still get a sharper image than any < $600 lens that goes to 300mm on its own. The closest bet would probably be the old 300/4 L non IS which you may score used for $6-700 if your lucky. But hen your still going to want to keep the 70-200/4 IS for the zoom practicality.

That simply is not true at all. 300mm vs 200mm makes up a huge amount of image quality difference, a 70-300 IS or tamron 70-300 vc will toss a lot more detail that a cropped 200mm from the 70-200 f/4 IS. I mean using a TC on a 70-200 f/4 IS beats cropping it to 280mm and yet a tamron 70-200 vc beats a 70-200 f/4 IS with even a 1.4x III TC (the 70-300 IS is just a trace behind wide open and better as well at f/8)

It is true that the 70-200 f/4 IS does 70-200mm better than those two lenses though! Especially on FF where the 70-300 IS fades towards the edges (the Tamron actually stays strong on FF edges)

You need a 70-300L if you don't want to lose too much there (in my case the 70-300L was actually better at 70mm, same at 100mm, worse at 135mm, barely worse at 165mm, a tiny bit better at 200mm).

Well I am only basing my argument on deductive reasoning, but I still think it is a sound one.  If I see a direct comparison, I would retract my statement though.  I have the 70-200/4 IS and the 55-250 and when cropped to 250 mm equivalent framing on the 70-200/4, it is significantly better than the 55-250 @ 250.  Last year, Timevest on this forum, compared the 55-250 and Tamron 70-300 VC the same way cropping the 55-250 out to 300mm and the difference was nill.  So A > B and B = C, therefore A > C.

Plus if you need shutter speed, cropping the 70-200/4 IS will give you twice the shutter speed at f4 or if you stop down the 70-200 to f5.6 to compare the same shutter speed, the 70-200 gains some sharpness by stopping it down.

Anyhow like I said this is just deductive reasoning.  If you have both a 70-200/4 IS and a 70-300 VC or IS, I would like to see a comparison done like that.

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