Even though we ARE Nikon lovers,we are NOT affiliated with Nikon Corp. in any way.

English German French

Sign up Login
Home Forums Articles Galleries Recent Photos Contest Help Search News Workshops Shop Upgrade Membership Recommended
members
All members Wiki Contests Vouchers Apps Newsletter THE NIKONIAN™ Magazines Podcasts Fundraising
dmitrychernyshev

Moscow, RU
89 posts

Click to send email to this author Click to send private message to this author

"RE: Focus problems?"

dmitrychernyshev Registered since 02nd Feb 2010
Sun 08-Jul-12 01:10 PM | edited Sun 08-Jul-12 06:58 PM by dmitrychernyshev

Stephen,

I have tested D4 using focusing screen with 24mm f/1.4G at f/1.4 in Apperture priority.
Yes, there are focusing errors using the outermost focus points compare to the centered one.

I got some better results on the right side and some bad ones on the left.

I will post the 100% crops for you to look at.
It well may be attributed to incompletely controlled environment, but I have used a Gitzo tripod without a column, Markins ballhead, RRS L-Plate, focusing screen, Delayed S. Release and MUP modes.

So, any advise on how to improve the test is greatly appreciated.

Regards,
Dmitry

P.S. Here is the link: https://images.nikonians.org/galleries/showgallery.php/cat/22489
Go through them from the bottom and up.
There are 3 sets of 4 images each (Center, Left, Right) and 3 seperate images made in MUP (Right, Left, Center)
Each image has a description written below.


P.S. Here is the 2-nd link:
https://images.nikonians.org/galleries/showgallery.php/cat/22490
I have done the same test with 50mm f/1.4G @ f/1.4
There are 3 sets of 4 images each (center, Left, Right).
All shots made in Manual Exposure Mode, MUP

Forgot to mention, that 1st image in each set - is a reference shot made in LV using Manual Focusing.

It looks to me like the left focus point is consistently out of focus.

What do you think?


Later: there is also a big discussion about the left most focus point focusing problem on dpreview. Search for D4 focus problem in forums.

Visit my Nikonians gallery.

Visit my Nikonians gallery.

This is a hot, active topic! Focus problems? [View all] , Clipper144 , Tue 03-Jul-12 11:27 PM
Subject
ID
Reply message RE: Focus problems?
1
Reply message RE: Focus problems?
2
Reply message RE: Focus problems?
3
Reply message RE: Focus problems?
4
     Reply message RE: Focus problems?
5
     Reply message RE: Focus problems?
6
     Reply message RE: Focus problems?
8
          Reply message RE: Focus problems?
17
               Reply message RE: Focus problems?
20
                    Reply message RE: Focus problems?
22
                         Reply message RE: Focus problems?
23
                         Reply message RE: Focus problems?
24
                              Reply message RE: Focus problems?
25
                                   Reply message RE: Focus problems?
26
                                   Reply message RE: Focus problems?
27
                                   Reply message RE: Focus problems?
28
                                   Reply message RE: Focus problems?
29
                                        Reply message RE: Focus problems?
30
                                        Reply message RE: Focus problems?
31
                                        Reply message RE: Focus problems?
32
                                        Reply message RE: Focus problems?
33
                                        Reply message RE: Focus problems?
34
                                        Reply message RE: Focus problems?
35
                                        Reply message RE: Focus problems?
36
                         Reply message RE: Focus problems?
37
                              Reply message RE: Focus problems?
38
Reply message RE: Focus problems?
18
     Reply message RE: Focus problems?
19
          Reply message RE: Focus problems?
21
Reply message RE: Focus problems?
7
Reply message RE: Focus problems?
9
     Reply message RE: Focus problems?
10
          Reply message RE: Focus problems?
11
               Reply message RE: Focus problems?
12
                    Reply message RE: Focus problems?
14
Reply message RE: Focus problems?
13
Reply message RE: Focus problems?
15
     Reply message RE: Focus problems?
16
          Reply message RE: Focus problems?
39
               Reply message RE: Focus problems?
40
Reply message RE: Focus problems?
41
Reply message RE: Focus problems?
42