Wide Deep and Sharp

NeilLNeilL Registered Users Posts: 4,201 Major grins
edited April 4, 2011 in Cameras
A technique for getting maximum sharpness in maximum depth of field to infinity with a wide angle lens:

http://blog.phaseone.com/

Neil
"Snow. Ice. Slow!" "Half-winter. Half-moon. Half-asleep!"

http://www.behance.net/brosepix

Comments

  • oakfieldphotography.comoakfieldphotography.com Registered Users Posts: 376 Major grins
    edited April 3, 2011
    Hi Neil
    Great advice.
    Just wondering if 3 people using the same camera lens combination look for the sweet spot in their lens will they come up with the same answer?

    Regards
    Patrick.:D
  • NeilLNeilL Registered Users Posts: 4,201 Major grins
    edited April 3, 2011
    oakfieldphotography.com wrote: »
    Hi Neil
    Great advice.
    Just wondering if 3 people using the same camera lens combination look for the sweet spot in their lens will they come up with the same answer?

    Regards
    Patrick.:D

    :D Good point Patrick!

    I guess the proof is in the pictures. You could get 2 plus solutions all equally good, or a clear winner.

    Neil
    "Snow. Ice. Slow!" "Half-winter. Half-moon. Half-asleep!"

    http://www.behance.net/brosepix
  • oakfieldphotography.comoakfieldphotography.com Registered Users Posts: 376 Major grins
    edited April 4, 2011
    Tested my 50mm f1.8 ll and i found that f5 is the seet spot.
    I must do the same for my 40d and 17- 85 usm is kit lens too.:D

    Regards
    Patrick.
  • NeilLNeilL Registered Users Posts: 4,201 Major grins
    edited April 4, 2011
    oakfieldphotography.com wrote: »
    Tested my 50mm f1.8 ll and i found that f5 is the seet spot.
    I must do the same for my 40d and 17- 85 usm is kit lens too.:D

    Regards
    Patrick.

    very interesting - your basic aim with your testing is to get best sharpness from 1 or 2 yards to infinity, right?

    Neil
    "Snow. Ice. Slow!" "Half-winter. Half-moon. Half-asleep!"

    http://www.behance.net/brosepix
  • SnowgirlSnowgirl Registered Users Posts: 2,155 Major grins
    edited April 4, 2011
    NeilL wrote: »
    A technique for getting maximum sharpness in maximum depth of field to infinity with a wide angle lens:

    http://blog.phaseone.com/

    Neil

    Excellent series of articles on this blog. Thanks.thumb.gif
    Creating visual and verbal images that resonate with you.
    http://www.imagesbyceci.com
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    Picadilly, NB, Canada
  • oakfieldphotography.comoakfieldphotography.com Registered Users Posts: 376 Major grins
    edited April 4, 2011
    Well Neill what i done was to set my 5dmk2 up on a tripod and turned on live view. Then i manually focused one third into the picture i wanted to take. Then i took pictures at each fstop and used the display on the back of the camer to look for best focus. Brought this home and my findings were right when i opened the photos in cs5.
    Thanks for that tip. very useful but i must get my 40d and kit lens tested now.
    Regards
    Patrick:D
  • NeilLNeilL Registered Users Posts: 4,201 Major grins
    edited April 4, 2011
    Snowgirl wrote: »
    Excellent series of articles on this blog. Thanks.thumb.gif

    that's ok :D

    Neil
    "Snow. Ice. Slow!" "Half-winter. Half-moon. Half-asleep!"

    http://www.behance.net/brosepix
  • NeilLNeilL Registered Users Posts: 4,201 Major grins
    edited April 4, 2011
    oakfieldphotography.com wrote: »
    Well Neill what i done was to set my 5dmk2 up on a tripod and turned on live view. Then i manually focused one third into the picture i wanted to take. Then i took pictures at each fstop and used the display on the back of the camer to look for best focus. Brought this home and my findings were right when i opened the photos in cs5.
    Thanks for that tip. very useful but i must get my 40d and kit lens tested now.
    Regards
    Patrick:D

    excellent Patrick!

    you know, a month or so ago, I got some weird results from 14mmL + 40D at small aperture, and couldn't fathom what was going on. now I think I have a clue!:D

    Neil
    "Snow. Ice. Slow!" "Half-winter. Half-moon. Half-asleep!"

    http://www.behance.net/brosepix
  • WarpedWarped Registered Users Posts: 98 Big grins
    edited April 4, 2011
    In this day and age of auto everything I find it kind of amusing that to get the sharpest image and find the sweet spot it's recommended to turn off Image Stabilisation and switch to manual focus and the last step invloves a good old pen rather than something like creating and storing a custom setting :)

    Goes to show the soft meaty thing behind the camera (us) is still an important part of the image making process.
    If at first you don't succeed - maybe sky diving isn't for you.
    www.warped-photography.com
  • NeilLNeilL Registered Users Posts: 4,201 Major grins
    edited April 4, 2011
    Warped wrote: »
    In this day and age of auto everything I find it kind of amusing that to get the sharpest image and find the sweet spot it's recommended to turn off Image Stabilisation and switch to manual focus and the last step invloves a good old pen rather than something like creating and storing a custom setting :)

    Goes to show the soft meaty thing behind the camera (us) is still an important part of the image making process.

    :D true enough! apparently there are limits to what AF can do for you in the case of a particular need such as max sharp DOF to infinity. it's not surprising though, with all the variables in optics! it's possible too that hyperfocal distance calculations might not be accurate unless you entered the best fstop via this manual method, but that would mean you already had your answer!

    Neil
    "Snow. Ice. Slow!" "Half-winter. Half-moon. Half-asleep!"

    http://www.behance.net/brosepix
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