D750 vs X-T1

J-see

Senior Member
I understand this concept, and it's why some folks say the D4S is better in low light than the D810, but that also means the D600 should perform better in low light than the D810, (pixel size 5.9
v. 4.8) and I don't see many people saying that's the case. Maybe I'll do my own test tonight.​

The SNR of the D600 is better than the D810 if it is 5.9 vs 4.8. It's physics, no technology can get around that part.

But once that pixel signal is converted and amplified, it is all about technology and then new usually beats old.
 

Eyelight

Senior Member
I'm thinking unless we knew the lenses, distances, settings, etc, the best guess would still be a guess.

@J-see and/or @Horoscope Fish are you meaning low light or less exposure? I can see where large pixels have the advantage when cutting stops, but not sure the big boys do when maintaining exposure value.
 

J-see

Senior Member
I'm thinking unless we knew the lenses, distances, settings, etc, the best guess would still be a guess.
@J-see and/or @Horoscope Fish are you meaning low light or less exposure? I can see where large pixels have the advantage when cutting stops, but not sure the big boys do when maintaining exposure value.


It's about low light. Actually it's about light in general but it plays little role unless light is lower. The accuracy of a signal measured is directly proportional to the size of the signal measured. Larger pixels = more area = more photon count = less noise.

Underexposed affects the SNR since lowering the incoming light increases the % noise which explains why overexposing is always the better method.

To add: increasing ISO does not count as overexposing in this context.
 
Last edited:

sonicbuffalo_RIP

Senior Member
The one on the left....the picture just looks overall sharper. That being said, they are both excellent images. I would like to have seen a larger picture comparison though.
 

TedG954

Senior Member
Hmmmm..... if you have to guess, it would appear that there's not enough difference to note in a real-life photo. One is as "good" as the other.
 

AC016

Senior Member
I'm thinking unless we knew the lenses, distances, settings, etc, the best guess would still be a guess.

@J-see and/or @Horoscope Fish are you meaning low light or less exposure? I can see where large pixels have the advantage when cutting stops, but not sure the big boys do when maintaining exposure value.

Well, yes, a guess is a guess. When you are flipping through magazines or going through photos on the internet, do all of those photos have EXIF data for you to look at? It goes back to what Ted said.
 

Eyelight

Senior Member
Well, yes, a guess is a guess. When you are flipping through magazines or going through photos on the internet, do all of those photos have EXIF data for you to look at? It goes back to what Ted said.

Excellent thought. When I'm looking at photos anywhere, including here where EXIF abounds, I'm seldom concerned with what camera was used.
 

Marcel

Happily retired
Staff member
Super Mod
Ah, caught by the DX depth of field advantage... Not so sure you'll be the wiener this time around. ;)
Of course I'm only playing around with this thing Ted. I don't even give a hoot if I'm right or wrong. It's still just a picture of an old fruit with either camera.
 

Eyelight

Senior Member
I'll add, they are relatively the same image. Yes, there is a little difference in sharpness and DOF, but they are close enough. The same camera could have produced the images with just a little fudging.
 

Pretzel

Senior Member
I vote with #1 being shot with one camera, with #2 being shot with the other.

...and that's all I'm going to say about the subject.

I will say this, though. I firmly believe that in situations with plenty of light, I think it would be extremely difficult to eyeball the difference without pixel peeping. Go low light, unedited, and I think the two would start differentiating themselves a bit more. 90% of the quality difference, with sensors these days, boils down to the control nut (read: the nut in control).
 

Marcel

Happily retired
Staff member
Super Mod
If they were taken with the same aperture, I'm 100% certain of my answer. But if they were not taken with the same aperture, then I could not.
 

J-see

Senior Member
If they were taken with the same aperture, I'm 100% certain of my answer. But if they were not taken with the same aperture, then I could not.

For all that matters, they could be two shots taken with the same cam. It's impossible to say since no cam has specific markers in their shots identifying them. I based my decision purely on the DoF under the assumption both shots are taken with identical settings and at the required distance.
 

Eyelight

Senior Member
Thing is the same lens cannot produce the same shot on FF and APS-C, not to mention different glass entirely, so immediately there are differences or adjustments that affect IQ and the image hasn't even made it to the sensor yet.
 

wornish

Senior Member
It's also an accurate one. Individual pixel-size matters.

Your test shot, IMO, is fine for a fun guessing game but if you want to get serious, do a similar test under less "ideal" conditions. In my experience with ASP-C and Full Frame sensor cameras, the differences come out when the shot isn't quite so "easy". Try this same test using low light, or under extreme dynamic range; put some distance between the subject and the background, put some objects IN the background, have a subject with fine detail, contrast and wide tonal gradient. And lets see pics that are more than 400 x 600 pixels that have been "Saved for Web". Lets look at some of those shots using 100% crops... I assure you, difference will appear.

....

101% agree this is a pointless exercise.
 

AC016

Senior Member
EOD for me, so here we go. I should have started out with this in the first place to give credit for the photo, but then it would have given the answer away: X-T1 vs Nikon D750 for Macro - comparison shot - X-T1 Forum - Fuji X Forum. So no, the photos were not taken by me and i don't own either camera. Mind you, the sensor in the X-Pro1 is more or less the same as that in the X-T1.

Marcel was right, the photo on the left is from the Nikon camera and the one on the right, from the Fuji camera.

It just happened that the forum member owns a D750, so this was really not about picking on one particular model Nikon camera. Could have just as easily been a D600.

Anyhow, when i came across the post, i thought it was interesting. Both photos are so similar, it really is hard to tell the difference if you don't have a discerning eye. Certainly, one does not scream full frame.

Again, this was for a bit of fun to see if our eyes could pick out any nuances in the photos that would lead us to an answer/guess. It also shows us how negligible the differences are.

Sorry if i ruffled any feathers. But hey, you don't have to participate if you see it as futile.
 

Eyelight

Senior Member
I thought this worth the effort to quote:

either way the baby figs parents will order the most expensive print package!
wink.png
Thanks for sharing!
 
Top