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Should I use my FF or APS-C for telephoto images?
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Apr 1, 2018 17:00:19   #
Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)
 
Steve Perry wrote:
First, start with the 200-500 for telephoto shots, that's the best one in your lineup.

All things being equal, your D600 with give you better results than the DX camera - as long as you fill the frame.

However, if you need to crop, the tables turn and the DX camera will give you better results than the cropped full frame camera. See this test:

https://backcountrygallery.com/cropping-full-frame-vs-shooting-a-crop-camera/

So, start with FX, and when the subject is too far and a heavier crop is required, switch to DX.
First, start with the 200-500 for telephoto shots,... (show quote)


Steve, have you compared prints of these images? Do the uncropped, or slightly cropped DX images still look better?

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Apr 1, 2018 17:39:20   #
Steve Perry Loc: Sylvania, Ohio
 
Gene51 wrote:
Steve, have you compared prints of these images? Do the uncropped, or slightly cropped DX images still look better?


Not directly, however, I have printed quite a few images in my day form both FX and DX. I can say that my full frame DX shots at higher pixel densities do look and hold up better than the cropped FX images do. It all comes down to pixel count. If you're getting 300 ppi with DX and only 175 with fx, you'll see more detail in the DX shot, ISO and lens quality being equal.

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Apr 1, 2018 18:51:43   #
Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)
 
Steve Perry wrote:
Not directly, however, I have printed quite a few images in my day form both FX and DX. I can say that my full frame DX shots at higher pixel densities do look and hold up better than the cropped FX images do. It all comes down to pixel count. If you're getting 300 ppi with DX and only 175 with fx, you'll see more detail in the DX shot, ISO and lens quality being equal.


Just curious what role the need for greater enlargement plays in a comparison. A 50% greater enlargement for DX with smaller pixels would have an impact on image quality. I've never done a direct comparison. But I have printed as small as a 8 mp crop from a D800 to 24x36 with decent detail retention when viewed at a normal viewing distance.

Also, even with a 600mm F4 and a 1.4TC on a DX, I still found myself cropping anyway. I would rather have 36 mp to play with when I have an active subject, knowing that I can crop as needed without too much loss of image quality.

Just curious . . .

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Apr 1, 2018 21:11:15   #
Steve Perry Loc: Sylvania, Ohio
 
Gene51 wrote:
Just curious what role the need for greater enlargement plays in a comparison. A 50% greater enlargement for DX with smaller pixels would have an impact on image quality. I've never done a direct comparison. But I have printed as small as a 8 mp crop from a D800 to 24x36 with decent detail retention when viewed at a normal viewing distance.

Also, even with a 600mm F4 and a 1.4TC on a DX, I still found myself cropping anyway. I would rather have 36 mp to play with when I have an active subject, knowing that I can crop as needed without too much loss of image quality.

Just curious . . .
Just curious what role the need for greater enlarg... (show quote)


Keep in mind I'm saying that a DX camera is better than a full frame of lesser pixel density cropped to DX, so the enlargement factor becomes the same. The smaller pixels of the DX camera actually get enlarged less in that scenario since there are more of them to fill the same space. It's like if you compared a 10 MP DX to a 24MP DX, no question which would give you the better enlargement.

And I can agree with the 36MP (or 46) and having room for an active subject. I'll use whatever gets me the shot :)

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Apr 2, 2018 02:59:35   #
Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)
 
Steve Perry wrote:
Keep in mind I'm saying that a DX camera is better than a full frame of lesser pixel density cropped to DX, so the enlargement factor becomes the same. The smaller pixels of the DX camera actually get enlarged less in that scenario since there are more of them to fill the same space. It's like if you compared a 10 MP DX to a 24MP DX, no question which would give you the better enlargement.

And I can agree with the 36MP (or 46) and having room for an active subject. I'll use whatever gets me the shot :)
Keep in mind I'm saying that a DX camera is better... (show quote)


Same here. I've gotten decent results with a 1" sensor, tiny pixels an all.

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