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D7100 autofocus speed

scottashley

Arvada, US
626 posts

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scottashley Silver Member Laureate Ribbon awarded as a Winner in a Nikonians Best of Images Annual Photo Contest Winner in the Annual Nikonians Best Images Contest 2015 Nikonian since 23rd Apr 2002
Sun 24-Mar-13 02:43 AM

Hi all,

After eight inches of snow fell today, my dog had a serious case of cabin fever. I let him outside to play, thinking it would also be a good time to test the autofocus speed of the D7100 I'd received a few days earlier.

I must say I was blown away by how well the autofocus worked. It struck me as much better than my aging D300. I also loved the large files and the fine gradations in the snow.

My dog was running full-bore straight at me in most of these, and he's one fast pup! Obviously not all shots were keepers, but I was pleasantly surprised how many were.

Specs: D7100, Nikon 70-300 VR (not the fastest focuser in the world), ISO 800 & 1600, f6.7-8, 1/500 to 1/1500 sec., plus 1.5 exposure, 51-point autofocus.

Postprocessing: curves, tone and smart sharpening adjustments in PhotoShop CS5.

Scott Ashley

www.ScottAshleyPhotography.com

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brada

US
506 posts

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#1. "RE: D7100 autofocus speed" | In response to Reply # 0

brada Silver Member Nikonian since 29th Jan 2008
Sun 24-Mar-13 02:49 AM

I just took mine out this morning for a little birding and I was pleasantly surprised how well the autofocus worked as well. I briefly owned a D7000, only a couple of months and was very disappointed in the 39 point system. My D300 is also aging plus it is in the shop for the Err problem. The autofocus worked great and able to shoot beyond ISO 400 is a huge plus! Plus the 24mp shows great detail...

http://www.bradaphotography.com
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cockers

Plover, US
4996 posts

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#2. "RE: D7100 autofocus speed" | In response to Reply # 0

cockers Gold Member Nikonian since 25th May 2006
Sun 24-Mar-13 07:57 AM

Great shots Scott and cool Cocker!

I' lovin my D7100 as well.

Al

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billD80

US
2238 posts

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#3. "RE: D7100 autofocus speed" | In response to Reply # 2

billD80 Silver Member Nikonian since 22nd Jan 2007
Sun 24-Mar-13 09:25 AM

Wonderful shots! The focus, color and tones are fantastic.

www.billkeane.zenfolio.com

Pugzilla

Boca Raton, US
220 posts

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#4. "RE: D7100 autofocus speed" | In response to Reply # 0

Pugzilla Registered since 05th Aug 2008
Sun 24-Mar-13 10:54 AM | edited Sun 24-Mar-13 10:59 AM by Pugzilla

What an adorable pup! My pug heritage forbids such activities; I prefer stuffed animal hunting, sunbathing and an occasional swim.

Seriously, I (as is everyone, it seems) am impressed with the speed and accuracy of the D7100 auto focus system - I never expected it to be this good. Hi ISO noise seems to be on a level about that of the D600, maybe minimally coarser, but not as low as that of the D800 (yes, I own all three, but that's a story for another day). From what I can see here, noise level is extremely low.

Walter

Never criticize a man until you walk a mile in his shoes. Then you'll be a mile away and have his shoes!

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Chuckv

Lafayette, US
252 posts

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#5. "RE: D7100 autofocus speed" | In response to Reply # 0

Chuckv Gold Member Donor Ribbon awarded for his support to the Fundraising Campaign 2014 Nikonian since 13th Mar 2009
Sun 24-Mar-13 11:17 AM

Scott,

Man I love the pictures, thanks for posting! I too am enjoying discovering my new D7100 abilities, and the picture results I am getting or close to what I am getting with my D700.


Chuck

Chuck Vincent, Nikon F100, P7000, D100, D7100, D700, D4

Nion Lens- 50 1.8, 17-35 F/2.8, 28-105 F3.5-4.5D Macro, 28-300, 24-70 2.8, 85 1.4D 70-200 2.8

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Jim Pearce

Grimsby, CA
4397 posts

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#6. "RE: D7100 autofocus speed" | In response to Reply # 0

Jim Pearce Silver Member Nikonian since 02nd Mar 2004
Thu 28-Mar-13 12:28 AM

Nice shots Scott. I'm finding the speed, lock and accuracy better than my D300 with all lenses (and TC combinations). However, for some reason it isn't quite as quick as my D300s with my 300 f2.8 VR. Neither my 300 f2.8 VR nor my 500 f4 AF-S needed fine tuning, bare and with the TC-14E and TC-17E. I was very pleased with this.

Jim

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mrginhop

Exeter, US
108 posts

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#7. "RE: D7100 autofocus speed" | In response to Reply # 6

mrginhop Silver Member Nikonian since 29th Mar 2009
Thu 28-Mar-13 01:20 AM

Jim-

Is that a 500 AF-S I or II? Does the D7100 focus the lens with the TC-14E? Mine won't with my 500mm AFS II.

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Jim Pearce

Grimsby, CA
4397 posts

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#8. "AF-S or II doesn't matter..." | In response to Reply # 7

Jim Pearce Silver Member Nikonian since 02nd Mar 2004
Thu 28-Mar-13 01:36 AM

I have the original AF-S, but they're basically the same lens. Yes, my lens focuses with both TCs on the D7100.

Jim

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jamtins

Meadow Heights, AU
87 posts

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#9. "RE: D7100 autofocus speed" | In response to Reply # 7

jamtins Registered since 03rd May 2011
Sun 31-Mar-13 10:08 AM

I have a AF-S II 500mm f/4 and on the D7100 I've had no problem.
It works fine with 1.4, 1.7 and 2.0 (III) TC's.
The 1.4 and 1.7 seem to have little loss of quality, the 2.0, is well its the 2.0. Its ok, but not crisp.
However the focus works about the same on all of them in the centre spot.(using single point focus), and the 1.4 and 1.7 seem fine when I move the point about to get a birds eye as the focus point.
The 2.0 is adequate.

.. I set out to discover the inventions of God. -John Muir

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G