Is the N1 the action/wildlife kit for me?

Started 3 months ago | Discussions thread
DaveR43
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Re: Is the N1 the action/wildlife kit for me?
In reply to dougjgreen1, 3 months ago

dougjgreen1 wrote:

Tord S Eriksson wrote:

The sunrise picture was taken at the same time as the first image, but the EXIF has somehow gone missing!

As others have pointed out, the worse the light, the more important it is to lower the ISO you use (feels contrary maybe, but that's how one did it in the film days, and it works well with the Nikon 1 cameras)! Noise is least, and dynamic range best, at base ISO, so that's what you need to use when the light is dim, and adjust aperture and shutter accordingly!

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tord (at) mindless (dot) com
Mostly Nikon V1, & D600, user

Assuming you can. We're talking wildlife, which implies moving subject matter. The more the subject moves, and the more the light is sketchy, the more the larger formats will outperform the N1 despite needing to crop to fewer pixels in the frame. A 24 MP DX DSLR cropped down to the same FOV will give you fewer pixels, but close to two stops more sensitivity and DR. An FX DSLR will give fewer pixels yet, but their advantage vs N1 is more like 3 stops.

As I said, if you can keep the N1 shot to ISO 400 or less with the appropriate aperture and shutter speed, the N1 can compete - and may even be the best solution for IQ. But if you need to shoot at higher than 400, it degrades noticeably, and by 1600, there's no doubt the bigger formats will win the day. And since this application is for long lenses and potentially moving subject matter, that's why the DX or FX SLR cropped down still delivers - despite putting fewer pixels in the frame than the N1 with the same lens. Because you're looking at probably f4 or slower, and reasonably high shutter speeds, you are likely to need a reasonably fast ISO to get the right exposure.

Hi Doug, Unfortunately, what you've said about DR is actually not correct.  Dynamic range of a sensor is affected directly by the size of the sensor. So if you crop an FX sensor to the same size as a Cx sensor, and the pixels use the same technology (which of course is not the case between e.g. D800 and V3), then the dynamic range of the cropped image will be the same as a Cx sensor's dynamic range.

There is a very good mathematical description of why this is the case somewhere on dpreview; I couldn't find it on a quick search, but a quick visual example can be seen at Bill Claff's Photographic Dynamic Range web site.  I've selected D800 (DX) - i.e. an FX cropped to DX frame size; D7100; and D800.

http://home.comcast.net/~NikonD70/Charts/PDR.htm#D800(DX),D7100,D800

That the Nikon 1 sensors do inherently have lower dynamic range than the Sony based sensors is indisputable; but when cropped to CX dimensions there is no longer a 2x advantage for DX sensors.

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DaveR

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