so after about 5 years I am considering upgrading from my D300 to a D600, as I find myself photographing a lot of night games for my sons baseball team and I think the low light/High ISO capabilities will be a huge plus...
Now I have some DX lenses, and My question is that in DX Crop mode, do I still get any benefit from the FX sensor w/r to the high ISO performance?
The D6*0 is a little better in high ISO performance. Enough to matter? Depends on your shooting style. Using fx glass on dx you gain inapparent focal length and lose the wide end. Using dx glass on fx you lose pixels and cropping ability. While giving up some pixels on a 36MP D800 isn't that bad, losing them on a D600 is not as good. You will need glass as the previous poster said.
While diamonds may be a girl's best friend, good glass is a photog's best friend. Good glass accentuates any camera's good points, while poor glass just makes any camera look bad.
"Beauty is in the eye of the beholder and it may be necessary from time to time to give a stupid or misinformed beholder a black eye." Miss Piggy
Use of DX lenses on an FX camera will simply result in the same aspect as it would with that same DX lens on a DX camera. The real difference being the resulting image resolution because of the FX camera's DX crop. When it comes to the D6x0 that's a 10MP image with the same sensor properties as its FX images… it's just cropped. Even though there's a 2MP difference to the D300 I would still expect the D6x0 to take a better photo with it's better ISO handling and improved low light performance.
One of the reasons that FX has an advantage over DX in image quality and high ISO performance is due to downsizing to a common output size. The ISO difference is about 1.5 stops on the D600/610. It's still going to be a little better than the D300 - but not as much.
The actual pixel size of FX vs. DX also affects ISO performance, and larger pixels of FX cameras have more light gathering ability.
For me, the big disadvantage of using a DX lens on an FX body is the viewfinder. You still have an FX viewfinder and an FX layout of AF sensors. When you look through the viewfinder, the DX area is less than half the area making it very small.
I originally thought I could use DX lenses on my D800 and D600 when I needed a light kit. But after testing, I found the small viewfinder was a show stopper for me.
This would not be the route I would choose in order to increase low-light capability - unless I could afford to purchase faster "FX" lenses at the same time.
As has been mentioned, a D600/D610 does have rather better high-ISO performance than a D300, but buying one with the intention of using it in DX Crop Mode probably isn't a realistic long-term solution. The smaller viewfinder area that Eric mentions would be of concern for me, as would the slight reduction in pixel count, from about 12 to about 10. The AF system isn't any better, and may even be a little less powerful.
By the way - it helps to keep your user profile updated - you still list a D80, and a 55-200mm as your only DX lens.
Mon 24-Feb-14 11:13 AM | edited Mon 24-Feb-14 11:55 AM by mikehalliday
Thanks all. I do have some non-DX lenses (I think) and a few, non Nikon lenses that don't SAY if they are DX or not (need to check on those) but my goal here is to find a way to justify the new body purchase NOW (as it will still help) and replace the glass over time)
Also, thanks for the reminder re: my profile. update now.
I do need some new lenses too but I have :
Nikkor AF-s DX 55-200 4-5.6 Nikkor AF 50mm 1.8 Nikkor AF 70-300 , 4-5.6 (hmmm does not SAY that it is DX) Nikkor DX 18-55 3.5-5.6 Sigma EX 70-200mm 2.8 (I think EX- DX)) Tamron AF 200-400mm f/5.6 LD IF 75DN (Not sure about this one)
Only the two lenses marked as DX are DX lenses; the rest cover the FX format. Like many of the others, I view using DX lenses on an FX format as a "transition" or "emergency" kind of thing. It's nice that you can do it, but it's not something you'll want to do long-term.
>Only the two lenses marked as DX are DX lenses; the rest >cover the FX format.
AWESOME!! I certainly agree that I want to start buying FX lenses, but it si sort of a cart/horse thing if you cant buy them together.. so I get the body, and they start transitioning my glass. I thought the sigma EX was a DX format lenses, but I guess not. GREAT as it is my "Go to" lens for sports given the fast 2.8 fixed aperture, and if I get better low light performance the 70-300 f5.6 may work well.
Like the others, I view using DX lenses >on an FX format as a "transition" or >"emergency" kind of thing. It's nice that you can >do it, but it's not something you'll want to do long-term.
Agreed, anxious to get started have not had a new camera in some years. Prob keep the D300 too as I think this is a GREAT camera, and my kids are starting to get interested (though they think their iPhones are the best cameras )
One thing you may want to consider that hasn't been said is that you upgrade your DX body - maybe the D7100 and you can still use the DX lenses you have (however as noted, you don't really have much in the DX-only glass department, so you could go either way and sell/replace the 18-55 and the 55-200). The one thing for sports that you'll miss is the angle of view or 'reach' you have with your current focal lengths on the DX body. That will change with the FX body.
Anyway, just a thought... Good luck in either direction!