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Canon 400mm f5.6

Alioff
Contributor

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.

40 REPLIES 40

jrhoffman75
Legend
Legend

I have found that the pixels on the Mark IV are so nice that a 1.3 crop to get same reach as APS-C is not an issue. I rarely shoot where high ISO noise becomes a problem for me.

Horses for courses.

Plus, like Ernie says - it just feels great.

John Hoffman
Conway, NH

R6 Mark III, M200 (converted to infrared), RF lenses, Pixma PRO-100, Pixma TR8620a, Lr Classic


@jrhoffman75 wrote:

I have found that the pixels on the Mark IV are so nice that a 1.3 crop to get same reach as APS-C is not an issue. I rarely shoot where high ISO noise becomes a problem for me.

Horses for courses.

Plus, like Ernie says - it just feels great.


Yes, they are very nice.  They are larger than those on a 7D Mark II, except a 7D Mark II will have more pixels when you crop the APS-H shot down to an APS-C angle of view.  The Mark IV would starting off at 16MP, which is being cropped down to the size of an image that the Mark II produces at 20MP.CT7D2016_06_100483-3.jpg

 

The above shot was cropped way too much.  But, the colors and contrast are still excellent.

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"Enjoying photography since 1972."


@Waddizzle wrote:

" Prior to having the 7DII, I used to think having a high frame rate was not important.  I know different now.  Take this picture...the fast AF and 10 fps really helped." 

 

I have been discovering what a difference frame rate makes, just by trying to photograph bees pollinating flowers.  I cannot catch one airborne to save my life.  They're always out, or at the edge, of the frame with the 6D.  I can catch them in the frame more easily, and in better focus with the 1D Mark IV, but the angle of view is putting some at the edge of the frame.  I'm using a EF 100mm f/2.8L macro, BTW.


Catching bees does get easier with practice and with a camera with good focusing ability (like a 1D or 7DII) it is a lot easier...ever since I got the 7DII, catching bees has become fairly routine.  I also use the EF 100mm f/2.8L macro.  Below is one I recently got:

 

Canon 7D Mark II, 100mm f/2.8L IS Macro, f/5, 1/400, ISO 640

24232960994_a02b282829_b.jpg24492467839_4cf339734e_b.jpg

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Diverhank's photos on Flickr

Nice pix.


@Alioff wrote:
Nice pix.

Thank you 🙂

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Diverhank's photos on Flickr

Very nice.

John Hoffman
Conway, NH

R6 Mark III, M200 (converted to infrared), RF lenses, Pixma PRO-100, Pixma TR8620a, Lr Classic

" I own a 1D Mark IV, Ernie."

 

Right!

EB
EOS 1DX and many lenses.

"Nice pix, thanks for sharing."

 

Yes it is. Very nice.

EB
EOS 1DX and many lenses.

"But, the colors and contrast are still excellent."

 

Right.

EB
EOS 1DX and many lenses.

"Catching bees does get easier with practice and with a camera with good focusing ability (like a 1D or 7DII) it is a lot easier...ever since I got the 7DII, catching bees has become fairly routine.  I also use the EF 100mm f/2.8L macro.  Below is one I recently got:"

 

Nice shots.  I've been looking for yellow jackets.  But, I am getting better at this.. 

 

For some reason, I used the T5 this morning, 1/800, f/8, ISO-250, EF 100 f/2.8L macro

 

IMG_2016_06_170483.jpgIMG_2016_06_170489.jpg

 

The lens is razor sharp on every body that I've used it on.

--------------------------------------------------------
"Enjoying photography since 1972."
EOS R6 V RF20-50mm F4 L IS USM PZ Lens Kit
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