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FORUMS Photography Talk by Genre People Talk 
Thread started 15 Jan 2018 (Monday) 01:05
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Seeking advice for Portraits using wide aperture prime lenses

 
Gungnir
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Mar 06, 2018 04:20 |  #16

F/4 - F/5.6 and increase subject distance from background.


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RPCrowe
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Post edited 1 month ago by RPCrowe. (3 edits in all)
     
May 20, 2018 16:35 |  #17

The focus array on the 5D2 sucks as it does on the 6D2. I own or have owned the 5D2, the 6D2 and the 7D2 and I opted not to buy the 6D mainly because of autofocus limitations..

Additionally, IMO, a 50mm lens also sucks for head and shoulders portraiture, especially with a full frame camera at f/1.8 or wider.

I agree that focus and recompose is quite chancy but, I don't agree with just putting the focus point on an eye or eyes and cropping. That totally negates the advantages of a full frame camera. You would be far better off shooting with a crop camera like the 7D2 that has an excellent autofocus system and focus points virtually throughout the frame.

I did not like the focus system of my 5D2. I switched to the 6D2 without due diligence in researching that camera. I don't know if the 6D2 is better than the 6D but, it isn't a great deal better than the 5D2.

When comparing the autofocus systems 5D2 and 6D2 cameras to the 7D2, the older 7D2 is, IMO, far better (except for dual pixel autofocus in live view mode). Here is the difference between the 6D2 focus array and that of the 7D2...

IMAGE: https://photos.smugmug.com/Photography/Photo-Equipment/i-wpph6CT/0/d95c6000/X2/focus%20array-X2.jpg
IMAGE LINK: https://photos.smugmug​.com …s%20array-X2.jpg&lb=1&s=A  (external link) on Smugmug

The focus point array of the 6D2 is centered in the middle of the frame whereas the focus array of the 7D2 spans almost the entire frame from border to border.

It is obvious that it would be easier to nail the focus on the eye(s) of your subject when using the 7D2. Just select one point or a group of points at or near the top of the frame and "BINGO" you have nailed the focus without recomposing.

BTW. I would be horrified to have less than 95% of my images (shot with the 7D2) with the eye or eyes in less than absolute sharp focus. That success rate drops so drastically when using the 6D2 and it is so difficult to use that camera for anything but studio portraiture that I have decided no longer to use the 6D2 for portrait work - except in the studio where I have more control.

I have not tried "face recognition" live view with the 6D2 in shooting portraits but, I suspect that than process may not nail the focus on the eye of the subject when doing head and shoulders portraiture.

Using live view and the touch screen of the 6D2 (especially with a stylus) you can easily nail focus on the eyes. However, I find that using live view in bright light (especially when the sun is in back of you) is quite difficult for me.

Using a Hoodman type loupe helps me see the LCD but that negates the advantages of the touch screen.

I like my 7D2 with 70-200mm lens at focal lengths of greater than 100mm and using f/4 for my portrait work. This gives me nice bokeh yet, the DOF is not so razor thin that one eye is on focus and the other OOF...

IMAGE: https://photos.smugmug.com/Fashion/Beauty-Shoot/i-5BND7Mt/0/fa77f762/X2/Beauty%20Shoot_2340_edited-1_pp_edited-1-X2.jpg
IMAGE LINK: https://photos.smugmug​.com …_edited-1-X2.jpg&lb=1&s=A  (external link) on Smugmug

IMAGE: https://photos.smugmug.com/Fashion/Beauty-Shoot/i-H3P9j48/0/9d9cea20/X2/Beauty%20Shoot_2127_edited-1_pp_edited-1-X2.jpg
IMAGE LINK: https://photos.smugmug​.com …_edited-1-X2.jpg&lb=1&s=A  (external link) on Smugmug

See my images at http://rpcrowe.smugmug​.com/ (external link)

  
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Ah-keong
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May 21, 2018 04:50 |  #18

should the aperture goes below f/2, the depth becomes thinner as the focal length goes longer.

unless one likes the effect of one eye sharp, the ears and the remaining become blurry....

Bokeh!


Canon 7D Mark II | BG-E16 | Canon EF-S 10-18mm | Sigma DC 18-35mm ART | Canon EF 70-200mm f/2,8L IS II | Zeiss 100mm Makro-Planar ZE
Canon Speedlite 430EX III-RT | 600EX-RT
Olympus E-PL3 | M.Zuiko ED 7-14mm PRO
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Seeking advice for Portraits using wide aperture prime lenses
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