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Comparing resolution

dchew

Well-known member
Hi,

I am quiet a bit surprised that no colour aliasing is seen in the white on black part of any image. Most cameras I have seen alias on the fine text.

Are the samples "jpegs" or "raws"?

Best regards
Erik
Me too Erik. If I go to the page on DPReview and compare a few selecting RAW, I see a lot of aliasing in that white on black text. Perhaps there was some other post-processing applied.

In general I can't get my head around these comparisons. In order to see similar scale as these are, some resampling/resizing up and/or down has to be done. I suspect we are at a quality level where that action affects what we see. Even at the relatively small difference between 36 and 50 mp. Not to mention what the graphics card / screen does itself to render images that are not exactly 100% pixel to pixel. I'm not smart enough to figure all that out so I try to avoid thinking about it.
:loco:

Dave
 

ErikKaffehr

Well-known member
Hi,

Forum software often rescale the images. So, sometimes I set up the images on mty server and post a link. The viewer still needs to get them into actual pixels view.

Best regards
Erik


Me too Erik. If I go to the page on DPReview and compare a few selecting RAW, I see a lot of aliasing in that white on black text. Perhaps there was some other post-processing applied.

In general I can't get my head around these comparisons. In order to see similar scale as these are, some resampling/resizing up and/or down has to be done. I suspect we are at a quality level where that action affects what we see. Even at the relatively small difference between 36 and 50 mp. Not to mention what the graphics card / screen does itself to render images that are not exactly 100% pixel to pixel. I'm not smart enough to figure all that out so I try to avoid thinking about it.
:loco:

Dave
 

jerome_m

Member
I am quite a bit surprised that no colour aliasing is seen in the white on black part of any image. Most cameras I have seen alias on the fine text.

Are the samples "jpegs" or "raws"?
The samples are all "jpegs" and indeed they show less aliasing than the raw samples.
 

jdphoto

Well-known member
You missed the first sentence in the first post: "An exercise for our distraction." ;)
No, I read that part, but it seems this could be considered part of that distraction. I mean, a majority of these threads are about comparing something to another. While I appreciate your intention, I think its only result might be is how much cool stuff DP Review has on their site.
 

ErikKaffehr

Well-known member
Hi,

Well, DPReview is one of the very few sites that post properly executed raw files on comparable subjects. The other one I kinow of is Imaging Resource.

Best regards
Erik

No, I read that part, but it seems this could be considered part of that distraction. I mean, a majority of these threads are about comparing something to another. While I appreciate your intention, I think its only result might be is how much cool stuff DP Review has on their site.
 

Jack

Sr. Administrator
Staff member
#2 is finest followed by #7. #2 is also rendered slightly lower magnification than the others, and then holds resolution down in a much cleaner fashion. So my guess is it's the highest resolution and has great glass -- or most accurately the smallest pixel pitch and great glass -- then 7 is somewhere close behind on both.
 
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