D600 vs d7100

Started Apr 26, 2013 | Discussions thread
MikeInIndy
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Re: You need to brush up on your reading :-)
In reply to Grevture, May 3, 2013

Grevture wrote:

MikeInIndy wrote:

Grevture wrote:

MikeInIndy wrote:

And that's giving you the benefit of your argument that we must compare a stop faster lenses.

Here I think is the crux of the matter: We want to compare prices of lenses giving the same real life performance, while you bring up price comparisons of lenses which deliver different performances.

And yes, you really do need one stop faster lenses on DX to be able to deliver the same performance. That is not some oddball idea, it is a very real consequence of having half the sensor area

There's really only one thing you need a stop faster lens for, depth of field control. Getting into light sensitivity would be like saying back in the day we compared lenses differently based on what film was behind them.  At the end of the day a lens is a lens, it's performance is fixed, the performance of the thing it's attached to is not other than depth of field and focal length,

I think you have some reading to do

Or even simpler, actually try a DX and a FX camera side by side (with comparable sensor technology). It might be very educating.

With half the surface to capture light, you really do need either twice as long shutter speed or twice as large aperture to get the same image performance (noise, DR etc) in the end. That is how it works, pure and simple.

I'd suggest maybe you want to go look at the "studio test shots" on this very website and compare the D7100 and D600.  I think you'll be hard pressed at base ISO to discern a significant difference between the two.  And ISO is ISO, you don't need to change exposure or aperture to compensate if the rated ISO's between the cameras are the same.  The "half the light" penalty is factored in, but is not a major issue at base ISO.  Is there more DR, sure (a whopping half stop, from 13.7 to 14.2 EV, either one of which destroys any camera made up until a year or two ago in this segment), is there less noise, maybe a little, is it going to be discernible in any realistic use of the photo in question, probably not.

Everyone today appears to be off on this "just buy a killer FX camera" tangent instead of actually learning what photography is about, which is LIGHT.  20 years ago they still took pictures when about the highest ISO film available was 1600 and it didn't look very good.  It's becoming clear that you guys are only interested in a numbers and technology game, rather than a realistic comparison of OUTPUT from these cameras.  Last time I checked photography was about photos.  A DX camera and a good flash will do anything an FX cam can do for this guys kid pictures until his kid is old enough to be in stage plays or something where flash is a no no or he's too far away.

you two keep setting up straw men arguments as to why FX is somehow "cheaper" than DX.  In the technical ultimate image quality sense, yes, it is, because DX just plain can't compete at the top end.  But in the "relevant to a thread where some guy asks do I buy a D7100 or a D600" sense, it's just an exercise in semantics.

No, it most certainly is not. And as for the context of the OP question, it was asked in the "Nikon FX SLR" forum

But the basics remain, you just do not seem to grasp the very real differences which do exist between sensor sizes. Sensor area does affect performance in a very real way, and if you cut the area in half, you will lose something which the lens need to compensate for. In optical systems, as in life in general, there are no free lunches.

This from the guy who says my D7000 needs twice the exposure time as my D600...

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-Mike

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