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Old Dec 15, 2008, 8:12 AM   #1
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Folks,

Need your help in deciding which teleconverter to buy.

I have a Nikon D300, and have just ordered a Nikkor AF-S 600mm f/4D IF-ED II telephoto lens, and am trying to figure out which teleconverter to buy.

The models I am considering are AF-S TC-20E II and AF-S TC-17E II, but am open to suggestions.

The objective of my pursuit is wildlife photography. So I am trying to find out which of the two teleconverters is more suitable for wildlife photography.

Thanks in advance for all your help!
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Old Dec 16, 2008, 5:25 AM   #2
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Both are suitable for wildlife. The 2x doubles your focal, but reduces aperture 2 stops, which will either slow down or eliminate autofocus. Optically, the 2x will also degrade image quality more. The 1.7x reduces aperture by 1.5 stops, and will probably be slightly better optically. Unless you really need the reach, the 1.7x will likely yield better image quality. Either way, with that kind of length, a tripod will be a must. I'm not sure that either would be a great option with that lens. I can't imagine needing more reach..as it is the 600mm is a 900mm equivalent on your d300!!
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Old Dec 16, 2008, 5:27 AM   #3
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Here's some info on teleconverters that may help you:

blog.nikonians.org/archives/Nikonians%20Teleconverter%20Table.pdf

600mm + TC? Your subjects must be a fair distance away.
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Old Dec 16, 2008, 7:51 AM   #4
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This is a very serious piece of kit, which tripod have you gone for?

What lenses are you shooting with currently as the jump to a 600mm prime is a big one and getting used to it can bea learning curve in itself to get good results. Personally I wouldn't want to be shooting with a max aperture of f8 as you want an accurate AF and f8 is at or beyond the limit realistically. Not to mention 1200mm is huge.

I shoot with a Canon MkIII so have a 1.3x crop rather than your 1.5x and 600mm is a good length to work with. I personally go 1.4x TC so you have 840mm and f5.6, this is still a 35mm equiv of 1260mm..... ouch!!!!

What subjects are you wanting to shoot?

Mark


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Old Dec 16, 2008, 9:44 AM   #5
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bloodmoney wrote:
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The models I am considering are AF-S TC-20E II and AF-S TC-17E II, but am open to suggestions.
Neither of the above... I agree with Mark1616
-> A 1.4x is probably the most I would go with and still have some sort of useable AF
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Old Dec 16, 2008, 3:32 PM   #6
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Thanks for all the responses. I really appreciate your help.

I'll be shooting the big cats (specifically tigers and leopards) in action in India.
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Old Dec 16, 2008, 4:31 PM   #7
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You must be really fit !!! :-)
I find it already challenging enough transporting a 500 f/4 overseas without a tripod...
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Old Dec 16, 2008, 5:47 PM   #8
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bloodmoney wrote:
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I'll be shooting the big cats (specifically tigers and leopards) in action in India.
Wow! Hopefully you'll share some of your images when you return.
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Old Dec 19, 2008, 6:44 AM   #9
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I use the 200/400 and 70/200 a lot and had all three TC's. I use the TC14 most of the time, the TC17 sometimes and the TC20 I sold. Frankly, the loss of two stops caused the camera to hunt in all but perfect conditions so unless you are taking static shots it would, IMHO, be a waste of money. At that distance with the 600 you'll be trying to use as fast a speed as possible I guess because of vibration (VR being turned off when using a tripod) which will impact on the aperture anyway. You might find yourself having to up the ISO to an unacceptable level since the maximum aperture with the TC20 would be f6.3 anyway. Better a good cropped photo than a very noisy one unless you can afford to upgrade to a D700 as well. Just my thoughts on the matter and looking forward to seeing some of your photos.
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