APS-c or FF? (Page 2): Its a tough call because their pixel density is equal. On one hand the crop sensor will provide greater resolving power but the FF will give you a better image...

joer Loc: Colorado/Illinois

drgiri wrote:

I have the Tamron 150-600 and Nikon D7100 cropped sensor as well as D750 full frame. Which body is better if I have to shoot birds at distance, which may need cropping at post? For Bird in flight and poor light situations, definitely D750 is better. I am confused about shooting birds which are far off when closer approach is not possible!

Its a tough call because their pixel density is equal. On one hand the crop sensor will provide greater resolving power but the FF will give you a better image quality wise (ie., less noise, more DR etc.).

If the full frame had substantially more MP the call would be easier to make.

drgiri Loc: India

Cdouthitt wrote:

If you don't know, then chances are you really didn't need FF.

Just get this to go with your d750 and your troubles will go away:

http://www.nikonusa.com/en/nikon-products/product/camera-lenses/af-s-nikkor-800mm-f%252f5.6e-fl-ed-vr.html

Too expensive you say...then you shouldn't have purchased FF for birding.

Wow, the 800 mm I can only imagine in my dreams!!! Who knows, might own it one day!!! Wishful thinking!!!

Macronaut Loc: Redondo Beach,Ca.

joer wrote:

Its a tough call because their pixel density is equal. On one hand the crop sensor will provide greater resolving power but the FF will give you a better image quality wise (ie., less noise, more DR etc.).

If the full frame had substantially more MP the call would be easier to make.

I must have missed something here. How do these two cameras have the same pixel density? Both are about 24Mp but, the 7100 crop sensor clearly has a much higher pixel density.

Even a 36Mp sensor has less pixel density than a 24Mp crop sensor.

Apaflo Loc: Anchorage, Alaska

If the shot is focal length limited and you have enough light to get at least 6.5 fstops of dynamic range, the D7100 will produce better detail than the D750.

The resolution of the D750 is 83.6 lp/mm maximum. The resolution of the D7100 is 128 lp/mm. Hence if cropped down to the same pixel dimensions the D7100 is way ahead on resolution, and thus potential sharpness.

drgiri Loc: India

Apaflo wrote:

If, and only if, the shot is focal length limited and you have enough light to get at least 6.5 fstops of dynamic range, the D7100 will produce better detail than the D750.

The resolution of the D750 is 83.6 lp/mm maximum. The resolution of the D7100 is 128 lp/mm. Hence if cropped down to the same pixel dimensions the D7100 is way ahead on resolution, and thus potential sharpness.

Yes, very true, but when we upload to social media or website by reducing the dimensions, now I found that both are almost the same.

Check out this Cattle Egret (Bubulcus ibis) Non Breeding plumage-- in flight
Exif: f/8, 1/1600, ISO 1400, 600 mm with D750

(Download)

drgiri Loc: India

So if the light is good, and the birds are far away, I am better off with the D7100 in all other conditions, switch over to the D750. Your advise makes sense. Will do. Thanks a lot.

drgiri Loc: India

Macronaut wrote:

I must have missed something here. How do these two cameras have the same pixel density? Both are about 24Mp but, the 7100 crop sensor clearly has a much higher pixel density.

Even a 36Mp sensor has less pixel density than a 24Mp crop sensor.

Does that mean, each pixel is bigger in size in the 36MP D810 FF compared to the 24 MP D7100 DX sensors?

But since D750 and D810 are same size, full frame; and D810 has more MP, so I deduce that each photosite/pixel is bigger in D750 compared to D810.

As I understand, the noise becomes less with bigger photosites/pixels and the so we can use much higher ISO levels without significant noise in the images.

But the high ISO performance is supposed to be better in the 24 MP D750 compared to the 36MP D810.

Apaflo Loc: Anchorage, Alaska

drgiri wrote:

Does that mean, each pixel is bigger in size in th... (show quote)

The pixel pitch is finest on the D7100 (128 lp/mm), somewhat less on the D800/D810 (103 lp/mm), and lowest on the D750 (84 lp/mm).

Line pairs per millimeter is the standard measure of resolution. For a digital sensor it can be calculated as the number of pixels in a horizontal line divide by the width in millimeters and then divided by two.

drgiri Loc: India

Apaflo wrote:

The pixel pitch is finest on the D7100 (128 lp/mm), somewhat less on the D800/D810 (103 lp/mm), and lowest on the D750 (84 lp/mm).

Line pairs per millimeter is the standard measure of resolution. For a digital sensor it can be calculated as the number of pixels in a horizontal line divide by the width in millimeters and then divided by two.

Yes, perfectly clear now. Thanks for the explanation!

TB4 Loc: TX

MtnMan wrote:

Yes, you do.

I leave my telephoto on my D5300 most of the time and use the D800 mostly for landscape.

I also usually only take the D5300 when travelling by air.

An exception will be trip to Africa in April. Taking the D800 only there. The critters are large and sometimes they get you close.

If I were going again I would pack the D5300 body deep in a suitcase to have just in case there is a problem with the D800...

steve_stoneblossom Loc: Rhode Island, USA

Apaflo wrote:

The pixel pitch is finest on the D7100 (128 lp/mm), somewhat less on the D800/D810 (103 lp/mm), and lowest on the D750 (84 lp/mm).

Line pairs per millimeter is the standard measure of resolution. For a digital sensor it can be calculated as the number of pixels in a horizontal line divide by the width in millimeters and then divided by two.

Pixel size, pixel pitch, pixel density. How does one evaluate the effect of each on the end product, and does the end product (small print, large print, high res display, low res display) affect the relevance of any or all?

rjallen Loc: Wales

Hi, I have canon 5D Mk3 and 7D which I use with Tamron 150-600mm, each has its merits, I love the crop factor and frame rate that 7D gives, but 5D Mk3 definitely has the edge on IQ and lower light ability. As previously stated, its horses for courses. I am sure you will have fun with both.

joer wrote:

Its a tough call because their pixel density is equal. On one hand the crop sensor will provide greater resolving power but the FF will give you a better image quality wise (ie., less noise, more DR etc.).

If the full frame had substantially more MP the call would be easier to make.

amfoto1 Loc: San Jose, Calif. USA

MtnMan wrote:

Yes, you do.

I leave my telephoto on my D5300 most of the time and use the D800 mostly for landscape.

Bingo!

Crop camera for telephoto work.

FF camera for wide angle work.

And, while it's true the D7100 has been vilified for having too small a buffer... It's something like a 6 RAW limit before the camera has to pause to clear the buffer... Seriously, I cannot recall ever shooting a burst of more than 5 or 6 images. Frame rate might be a bigger deal, for example it can be next to impossible to time the position of a flying bird's wings. 6fps that the D7100 can do is okay, but not great. The solution is just to fire off more bursts of shots to increase your odds of capturing that "perfect" in-flight pose.

I don't shoot with Nikon gear, but gotta say that I wouldn't have any problem using a D7100 for birds in flight or birds in trees.

Macronaut Loc: Redondo Beach,Ca.

Macronaut wrote:

I must have missed something here. How do these two cameras have the same pixel density? Both are about 24Mp but, the 7100 crop sensor clearly has a much higher pixel density.

Even a 36Mp sensor has less pixel density than a 24Mp crop sensor.

...

drgiri Loc: India

amfoto1 wrote:

Bingo! br br Crop camera for telephoto work. br ... (show quote)

Thanks....