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

End of DX as we now know it?


This topic is locked. This message is locked.
PerroneFord

Tallahassee, US
2807 posts

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

"RE: End of DX as we now know it?"

PerroneFord Silver Member Nikonian since 07th Apr 2011
Thu 07-Jun-12 06:25 PM

>>According to DXOMark "low-light ISO is the highest
>ISO
>>setting for a camera that allows it to achieve an SNR of
>30dB
>>while keeping a good dynamic range of 9 EVs and a color
>depth
>>of 18bits."
>>
>>Yes?
>Ok. What, exactly does that mean to you as a photog?

Fundamentally, it means that at ISOs above those listed, one or more of the image components listed (EV, color depth or SNR) will begin to suffer perceptibly. According to DXO's comments, a 25% change in the ISO number is equivalent to about 1/3 EV. So based on that comment, it would appear that the gap between the D3s and the D4 is statistically insignificant as far as the picture is concerned.

Be that as it may, one would certainly expect the ISO performance of a generation newer sensor such as in the D4 vs the D3s, to exhibit an IMPROVEMENT in performance, even if very slight. However it does not. I am simply wondering why not. Gains were made in the other two primary categories of performance denoted.

So if I may take the liberty, the thrust of your comments regarding this discussion seem to be:

1. For the same generation of sensor, pixel density has no bearing on ISO/noise performance

2. Relying on DX to replace a 1.4x tele extender is folly. Particularly in situations where noise is going to be an overriding factor.

3. Noise performance can only be bettered by increasing the light gathering power of the front element. Corollary here is that my 300/2.8 should do SIGNIFICANTLY better than my 70-200/2.8 because the aperture isn't a factor, merely the size of the front element. And in this case, it's more than twice the area.


So given all this, it seems that the answer to my low-light issue is to buy a lens with the largest front element I can find, and attach it to a D3s or D4.

Do I have it about right?

------
Webpage: http://www.ptfphoto.com

Visit my Nikonians gallery.

This is a hot topic  It has been locked by a team member End of DX as we now know it? [View all] , NikonMark37814 , Sat 26-May-12 05:09 PM
Subject
ID
Reply message RE: End of DX as we now know it?
1
Reply message RE: End of DX as we now know it?
2
Reply message RE: End of DX as we now know it?
3
Reply message RE: End of DX as we now know it?
4
Reply message RE: End of DX as we now know it?
5
Reply message RE: End of DX as we now know it?
20
Reply message RE: End of DX as we now know it?
6
Reply message RE: End of DX as we now know it?
7
Reply message RE: End of DX as we now know it?
8
Reply message RE: End of DX as we now know it?
9
Reply message RE: End of DX as we now know it?
12
Reply message RE: End of DX as we now know it?
10
Reply message Who knows?
11
Reply message RE: Who knows?
13
     Reply message RE: Who knows?
14
          Reply message Hmm...
15
               Reply message RE: Hmm...
21
Reply message RE: End of DX as we now know it?
16
Reply message RE: End of DX as we now know it?
17
     Reply message RE: End of DX as we now know it?
18
          Reply message RE: End of DX as we now know it?
19
          Reply message Yes Neil...
22
          Reply message RE: Yes Neil...
23
          Reply message RE: Yes Neil...
24
          Reply message RE: Yes Neil...
25
          Reply message RE: Yes Neil...
26
          Reply message RE: End of DX as we now know it?
27
               Reply message RE: End of DX as we now know it?
28
               Reply message RE: End of DX as we now know it?
29
                    Reply message RE: End of DX as we now know it?
30
                    Reply message RE: End of DX as we now know it?
34
                         Reply message RE: End of DX as we now know it?
35
                         Reply message RE: End of DX as we now know it?
36
                         Reply message RE: End of DX as we now know it?
38
                              Reply message RE: End of DX as we now know it?
42
                                   Reply message RE: End of DX as we now know it?
44
                                        Reply message RE: End of DX as we now know it?
48
                         Reply message RE: End of DX as we now know it?
37
                              Reply message RE: End of DX as we now know it?
39
                                   Reply message RE: End of DX as we now know it?
40
                                        Reply message RE: End of DX as we now know it?
41
                                        Reply message RE: End of DX as we now know it?
43
                                        Reply message RE: End of DX as we now know it?
45
                                        Reply message RE: End of DX as we now know it?
49
                    Reply message RE: End of DX as we now know it?
33
Reply message RE: End of DX as we now know it?
31
Reply message RE: End of DX as we now know it?
32
     Reply message RE: End of DX as we now know it?
46
          Reply message RE: End of DX as we now know it?
47
          Reply message RE: End of DX as we now know it?
50
               Reply message RE: End of DX as we now know it?
52
                    Reply message RE: End of DX as we now know it?
53
                         Reply message RE: End of DX as we now know it?
54
                              Reply message RE: End of DX as we now know it?
55
                                   Reply message RE: End of DX as we now know it?
56
                                        Reply message RE: End of DX as we now know it?
57
                                             Reply message RE: End of DX as we now know it?
58
                                             Reply message RE: End of DX as we now know it?
59
                                             Reply message RE: End of DX as we now know it?
60
                                             Reply message RE: End of DX as we now know it?
61
                                             Reply message RE: End of DX as we now know it?
62
                                             Reply message RE: End of DX as we now know it?
63
                                             Reply message RE: End of DX as we now know it?
64
                                             Reply message RE: End of DX as we now know it?
65
                                             Reply message RE: End of DX as we now know it?
66
                                             Reply message RE: End of DX as we now know it?
67
                                             Reply message RE: End of DX as we now know it?
68
                                             Reply message RE: End of DX as we now know it?
69
                                             Reply message RE: End of DX as we now know it?
70
                                             Reply message RE: End of DX as we now know it?
71
                                             Reply message RE: End of DX as we now know it?
72
                                             Reply message RE: End of DX as we now know it?
73
                                             Reply message RE: End of DX as we now know it?
74
                                             Reply message RE: End of DX as we now know it?
75
                                             Reply message RE: End of DX as we now know it?
77
                                             Reply message RE: End of DX as we now know it?
78
                                             Reply message RE: End of DX as we now know it?
79
                                             Reply message RE: End of DX as we now know it?
80
                                             Reply message RE: End of DX as we now know it?
81
                                             Reply message RE: End of DX as we now know it?
82
                                             Reply message RE: End of DX as we now know it?
92
                                             Reply message RE: End of DX as we now know it?
95
                                             Reply message RE: End of DX as we now know it?
97
                                             Reply message RE: End of DX as we now know it?
98
                                             Reply message RE: End of DX as we now know it?
99
                                             Reply message RE: End of DX as we now know it?
100
                                             Reply message RE: End of DX as we now know it?
76
                                             Reply message Ya think Neil?
84
                                             Reply message Here's what I think, Jim...
85
                                             Reply message RE: Here's what I think, Jim...
94
                                             Reply message RE: Here's what I think, Jim...
96
                                             Reply message This is one reason you are wrong, Jim...
86
                                             Reply message RE: This is one reason you are wrong, Jim...
89
                                             Reply message RE: This is one reason you are wrong, Jim...
90
                                             Reply message RE: This is one reason you are wrong, Jim...
91
                                             Reply message RE: This is one reason you are wrong, Jim...
93
                                             Reply message I thought you could always back up Neil...
101
                                             Reply message I believe I suggested...
102
                                             Reply message RE: I believe I suggested...
103
                                             Reply message I find it strange Neil...
104
                                             Reply message Because...
105
                                             Reply message And another reason...
87
                                             Reply message And another... from 2 days before
88
          Reply message RE: End of DX as we now know it?
51
               Reply message RE: End of DX as we now know it?
83
Reply message RE: End of DX as we now know it? - Thread locked
106