Canon 400mm f5.6

[Alioff]

Would canon 7D Mark ii's auto focus work with Canon 400mm f5.6 when 1.4x extender attached? I know the autofocus will work with 1d series when 1.4x extender attached, I was wondering if it works with the newer SLRs.

[diverhank · Accepted solution]

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@Alioff wrote:

Would canon 7D Mark ii's auto focus work with Canon 400mm f5.6 when 1.4x extender attached? I know the autofocus will work with 1d series when 1.4x extender attached, I was wondering if it works with the newer SLRs.

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Yes it will work but you will have only the center point plus 4 assists.  As far as I know only the 80D, 5DIII, 7DII and the 1D series will AF at f/8

[ebiggs1 · Accepted solution]

"Would canon 7D Mark ii's auto focus work with Canon 400mm f5.6 when 1.4x extender attached?"

It may 'work' but you won't like it.  It's not a great idea.   IMHO, of course.

[TTMartin · Accepted solution]

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@Alioff wrote:

Would canon 7D Mark ii's auto focus work with Canon 400mm f5.6 when 1.4x extender attached? I know the autofocus will work with 1d series when 1.4x extender attached, I was wondering if it works with the newer SLRs.

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Taken Tuesday with the 7D Mk II and EF 100-400 L IS II and 1.4X TC at 560mm. The AF worked fine.

As already mentioned you are limited to center spot, center AF point, or center AF point with 4 AF expansion points.

[Alioff · Accepted solution]

Thank you. I was deciding between 7d mark ii and a used 1d mark4.

[kvbarkley · Accepted solution]

prime vs zoom does not matter, what matters is f/5.6 at 400 mm.

[TTMartin · Accepted solution]

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@Alioff wrote:
I meant the prime lens, 400mmf5.6 and not the 100-400. I have the lens, and shopping for a new camera

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The 7D Mk II will AF at f/8. Regardless if it is the EF 400mm f/5.6L with a 1.4X TC or the EF 100-400mm L IS II with a 1.4X TC.

[TTMartin · Accepted solution]

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@Alioff wrote:
Thank you. I was deciding between 7d mark ii and a used 1d mark4.

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With the 1D Mk IV f/8 is only with a single horizontal AF point. f/8 AF is not cross type or have the 4 expansion points like the 7D Mk II. 

[ebiggs1 · Accepted solution]

I guess you can see from sample it is soft and likely what you can expect.  With super teles the keeper rate is very important because as focal length increases, so do all the issues.  Adding an extender just adds more.

BTW ........

If you are seriously considering a decision between the 1D Mk II and a 1D Mk IV, you need to consider all the specs.  The Mk IV may not have as many AF points at f8 but in virtually every other spec it is the better camera.  But it does depend on what you intend using it for.

The Mk IV with its larger sensor with larger pixels is hard to over look. Much longer battery life and on and on.  There is no way I would have a 7D Mk II over a Mk IV if it was my only camera.  

[TTMartin · Accepted solution]

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@Alioff wrote:
I have a 5d marking now and looking to buy a crop sensor camera. Used 1d mark 4 is about the same price of a new 7d markii. This is why I am debating between the two. I like wild life photography.

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The 7D Mk II is a better choice over the 1D Mk IV. From the 7D Mk II's better AF system, to a greater crop factor, the 7D Mk II has the same high ISO perfromance, the same batteries as the 5D Mk II or Mk III, same degree of weather sealing as the 1D Mk IV, the choice of using a battery grip to give you similar ergonomics to the 1D camera, or the choice to go without the grip for a smaller more compact camera.

[Alioff]

I have a 5d marking now and looking to buy a crop sensor camera. Used 1d mark 4 is about the same price of a new 7d markii. This is why I am debating between the two. I like wild life photography.

[ebiggs1]

"I have a 5d marking now ..."

???

I had all the 5D series. I had two 7D's (not the Mk II).  I sold all of that and now use a 1Ds Mk III and the 1D Mk IV.  IMHO, this is as good as it gets, except for the 1Dx.  The Mk IV is the last of the H sensor and one reason its used price stays fairly high, It is a favorite with the birder crowd.

I can have any camera I want but and I choose the 1D Mk IV.

[TTMartin · Accepted solution]

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@Alioff wrote:
I have a 5d marking now and looking to buy a crop sensor camera. Used 1d mark 4 is about the same price of a new 7d markii. This is why I am debating between the two. I like wild life photography.

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The 7D Mk II is a better choice over the 1D Mk IV. From the 7D Mk II's better AF system, to a greater crop factor, the 7D Mk II has the same high ISO perfromance, the same batteries as the 5D Mk II or Mk III, same degree of weather sealing as the 1D Mk IV, the choice of using a battery grip to give you similar ergonomics to the 1D camera, or the choice to go without the grip for a smaller more compact camera.

[diverhank]

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@Alioff wrote:
I have a 5d marking now and looking to buy a crop sensor camera. Used 1d mark 4 is about the same price of a new 7d markii. This is why I am debating between the two. I like wild life photography.

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I have the 7DII and the 400mm f/5.6 and I have used them with the 1.4X...you can shoot bird in flight with it but the keep rate is low and it's not much fun as the AF lags too much for fast action.  The IQ is not too bad though...you have to look hard to tell.

Regarding the 7DII and 1DMarkIV...I don't have the 1D Mark IV except for brief handling and test shots...Personally I don't think you can beat a 1D anything with a 7D anything...it's a whole class above... like comparing a Camero against a Corvette... I'd get a 1D Mark IV over the 7DII in a heart beat except that the 1D Mark IV only gives you 1.3 magnification factor versus the 7DII 1.6 - if reach is important to you - it appears to be since you already have a full frame.  Reach was the reason I got the 7DII not because it's a better camera.

[TTMartin]

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@diverhank wrote:

...it's a whole class above... like comparing a Camero against a Corvette... 

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Sorry, I'd take a 2016 Camaro SS over a 1979 Corvette any day.

[jrhoffman75]

http://www.grantatkinson.com/blog/canon-7d-mark-2-compared-to-canon-1d-mark-4

[TTMartin]

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@jrhoffman75 wrote:

http://www.grantatkinson.com/blog/canon-7d-mark-2-compared-to-canon-1d-mark-4

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Thanks,

I didn't realize that with a 1D Mk IV that you lose the cross type AF with an f/5.6 lens on all but the center AF point.

[ebiggs1]

" I'd get a 1D Mark IV over the 7DII in a heart beat ..."

So would I. Not even a choice.  Most of the specs are similar so most of the stuff is a wash.  But one thing where the Mk IV is better is the larger pixels from the larger sensor.  It is going to produce better pictures.

Regarding the AF system, the two are still pretty close.  Now when you consider I only use the center point 95% of the time the Mk IV wins every time.

The Mi IV just feels better, too. It is more rugged.  Once you go I series, you will never go back!

[RobertTheFat]

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@ebiggs1 wrote:

" I'd get a 1D Mark IV over the 7DII in a heart beat ..."

So would I. Not even a choice.  Most of the specs are similar so most of the stuff is a wash.  But one thing where the Mk IV is better is the larger pixels from the larger sensor.  It is going to produce better pictures.

Regarding the AF system, the two are still pretty close.  Now when you consider I only use the center point 95% of the time the Mk IV wins every time.

The Mi IV just feels better, too. It is more rugged.  Once you go I series, you will never go back!

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Says the man with the physique of a professional football player. Not everybody can lug a 1D4 around.

[ebiggs1]

B from B,

"Says the man with the physique of a professional football player."

I think it is just from habit.   Did a parade today and, yes, the Mk IV and D3 was along.  But its only 90 here with 90% humidity.