D7100 crop - what is it?

Started 10 months ago | Discussions thread
Tbolt47
Senior MemberPosts: 1,460Gear list
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To make my point easier to understand
In reply to jimoyer, 10 months ago

jimoyer wrote:

Tbolt47 wrote:

jimoyer wrote:

And further, it allows you to see what is about to enter your frame and focal points prior to it entering allowing you to better anticipate action as it approaches.

I don't see your point here - if you were shooting un-cropped the pictures would be the same but with more around the edges of you or subject and surely you are less likely to accidentally crop part of your subject out of the picture if using the full frame. So to me shooting un-cropped is better (unless you really need the buffer room) as your are more likely to get a better framed shot after cropping in PP.

If you're shooting using the full DX sensor, what do you see outside the sensor/viewfinder? Nothing. That can make it difficult to time action shots prior to their entering your viewfinder/sensor.

Shooting in 1.3x crop, you have the remaining DX viewfinder, outside the crop viewfinder (see Mako's Sharpie) that is still visible to you unlike the full DX viewfinder in DX mode. So you can see what is about to enter your viewfinder using 1.3x crop that would be completely occluded using the DX viewfinder just prior to entering.

Imagine the shot below is a running dog and the whole of the grey box is the viewfinder and the smaller box represents the crop mode.

So in which mode is it easier to get the shot of the dog?

Neither because although in crop mode you can see what is outside the frame that is also space that is outside you subject which is exactly what you are seeing, as well as getting, when you shoot in DX mode.

The fact that you can't see anything outside of the DX viewfinder doesn't make any difference because you subject must be small enough to fit in your "crop box" otherwise you wouldn't be considering using it.

So basically the extra you think you are getting in crop mode to see the subject before it enters the frame you still are getting in DX mode just that you are capturing that extra in the image as well.

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