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km6xz Moderator Awarded for his in-depth knowledge in various areas, including Portraits and Urban Photography Nikonian since 22nd Jan 2009Thu 04-Apr-13 06:12 AM
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#12. "RE: D 7100 Focus help"
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St Petersburg, RU
          

Are these small crops and originally JPGs? The best reason, among many, reasons to shoot RAW is to preserve the original capture data and be able to make edits and conversions without every changing the original raw file. It appears that you saved these as JPGs which compresses them and tosses out a lot of data, then saved them again which further destroys data by compressing again. By 3 or 4 saves there is no fidelity left and the image is ruined. It is possible to get good JPG compression if the file is only converted once. If you need another size or additional edits, start with a new conversion of the original untouched file so every version of the edited version of an image is a first generation of conversion and saving as a JPG.

The photo of the bird is a good example of a number of better focus targets in the same focal point coverage area. The branch is a better target than the dark low contrast bird. Both were in the same focus sensor coverage area. If these were small crops, the bird was just too small in terms of defining pixel count to dominate the focal point. If his head filled the focal point, the camera would have been more likely to pick the same target as you did.
Stan
St Petersburg Russia

Visit my Nikonians gallery.

  

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A topic tagged as in need of helpD 7100 Focus help [View all] , Propjob Silver Member, Tue 02-Apr-13 12:43 AM
 
Subject Author Message Date ID
Reply message RE: D 7100 Focus help
Kjdnikon Silver Member
02nd Apr 2013
1
Reply message RE: D 7100 Focus help
Jim Pearce Silver Member
02nd Apr 2013
2
Reply message RE: D 7100 Focus help
comicalalien Gold Member
03rd Apr 2013
3
Reply message RE: D 7100 Focus help
agitater Gold Member
03rd Apr 2013
4
Reply message RE: D 7100 Focus help
km6xz Moderator
03rd Apr 2013
5
Reply message RE: D 7100 Focus help
Propjob Silver Member
03rd Apr 2013
6
     Reply message RE: D 7100 Focus help
Propjob Silver Member
03rd Apr 2013
7
          Reply message RE: D 7100 Focus help
Kjdnikon Silver Member
03rd Apr 2013
8
               Reply message RE: D 7100 Focus help
Propjob Silver Member
04th Apr 2013
9
                    Reply message RE: D 7100 Focus help
Propjob Silver Member
04th Apr 2013
10
                         Reply message RE: D 7100 Focus help
Kjdnikon Silver Member
04th Apr 2013
11
                         Reply message RE: D 7100 Focus help
km6xz Moderator
04th Apr 2013
12
                              Reply message RE: D 7100 Focus help
Propjob Silver Member
04th Apr 2013
13
                                   Reply message RE: D 7100 Focus help
Propjob Silver Member
05th Apr 2013
14
                                        Reply message RE: D 7100 Focus help
agitater Gold Member
05th Apr 2013
15
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FutureLook Silver Member
05th Apr 2013
16
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richardd300 Silver Member
05th Apr 2013
17
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Propjob Silver Member
09th Apr 2013
18

Forums Lobby GET TO KNOW YOUR CAMERA & MASTER IT Nikon D7100, D7000 (Public) topic #25926 Previous topic | Next topic


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