>Has anyone who uses the two subject cameras had an >opportunity to compare their relative AF capabilities when >shooting action? If so, what are your impressions? Thanks! > >Mike
Mike, I shoot with both the D7100 and D800e bodies. I think the question really depends upon the conditions and lenses used. The D800e has the advantage in low light situations when compared with the D7100 and the same lens, however with most shooting situations the D7100 is a very fast AF acquirer. I don't shoot BIF usually but do shoot some kids sports. So far, I have not had problems with the D7100 and fast action other than the buffer. Certainly neither camera is a D4 or D4s when it comes to capture rate.
Do you have a more specific question regarding this subject?
I'm thinking about getting a D7100 to back up my D800 when I shoot events. It's inexpensive (compared to the FX bodies), uses the same battery as the D800, and with good AF and a dual card system it might be just what I need.
An answer would depend on what type of events. If you are talking about lighting for performance or broadcast and normal human speeds, either model would be fine. If you are at the lower limits of light for the speed needed, the D800 has an advantage. The metering sensor is much higher resolution in the D800 which assists in AF, particularly in the short mirror down period when shooting bursts. Stan St Petersburg Russia
I also have the D7100 & D800. I haven't done the AF side by side, but it work very well i am very happy with it. I had same thinking as you, battery and similar control positions means the D7100 is still comfortable ands its lighter for travelling. I weighted up the d610 and really felt it didn't add enough for the price. (i already have 2 d800). I need more time getting used to the 1.5 crop on lenses, but i can't say you will miss the 36MP, its got tons to play with! My only current dilemma is to work out what lens i get for its wide end....a DX or wider fx?
>Hi Mike, > >I also have the D7100 & D800. I haven't done the AF side >by side, but it work very well i am very happy with it. I had >same thinking as you, battery and similar control positions >means the D7100 is still comfortable ands its lighter for >travelling. I weighted up the d610 and really felt it didn't >add enough for the price. (i already have 2 d800). I need more >time getting used to the 1.5 crop on lenses, but i can't say >you will miss the 36MP, its got tons to play with! My only >current dilemma is to work out what lens i get for its wide >end....a DX or wider fx?
Rick, for ultra wide on the 7100 I like the Tokina 11-16 for real estate interiors and often have to adjust in post for barrel distortion but that is no problem. For exterior I often use the 800e and the Nikon 24 or 28mm which is enough.
On the 7100 I use a variety of both DX and FX lenses from my inventory depending upon what I want to accomplish. Some of my 3rd party lenses are not very good in the edges on the 800e but work very well with the angle of view on the 7100 which will by virtue crop those edges and use the center of the lenses angle of view. You'll need to experiment and perhaps before buying you should rent what you think you might want to shoot with.
Thanks for comments on lenses. I will post in lens forum, but when u have both FX & DX the temptation is to always go with and FX lens so u can use on both at full MP. However at the wide end its slim pickings for FX. I have the 17-35 and use it quite a bit. But its not that wide in D7100. This is a dilemma that Mike will have if he goes the d7100 to supplement his d800.