Timeline for Given the same lens, does shooting with FX cameras yield sharper results than DX cameras?
Current License: CC BY-SA 3.0
12 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 13, 2017 at 12:44 | history | edited | CommunityBot |
replaced http://photo.stackexchange.com/ with https://photo.stackexchange.com/
|
|
| Jul 10, 2012 at 1:09 | comment | added | Russell McMahon | @MattGrum - I'm not meaning to be contentious (or, no more so than is absolutely necessary ;-) ) BUT great care needs to be taken in such comparisons to compare truly equivalent cases. Things like lens settings, actual subject area imaged and more affect the result and there needs to be a clear understanding of what assumptions have been made when making comparisons. I expect that we'd both hold the same opinion if we sat down and worked through the assumptions being made - but it's easy to come to apparently different conclusions due to apparently quite minor differences in starting points. | |
| Jul 10, 2012 at 0:20 | comment | added | jrista | I just wanted to note that lp/mm and lp/ph are not the same, and the former (when measured for a sensor) puts a hard limit on the finest level of detail you could resolve from a physical standpoint. The spatial resolution of a sensor is effectively your minimum CoC. From a portraiture standpoint, its probably a moot point, however from a bird photographers standpoint, a cropped sensor tends to offer more desirable traits due to their higher relative spatial resolution compared to full-frame sensors. I.E. To capture the same detail at the same distance, I'd need a 57mp FF or a 24mp APS-C. | |
| Jul 10, 2012 at 0:18 | comment | added | jrista | Another way to put it would be, if a lens projects a fine element of detail onto the sensor at 4 microns in size, and a 24mp APS-C sensor could resolve it at about that size. A 24mp FF sensor could not resolve an element of detail that small, as it would be limited to around 6 microns or so in terms of the smallest (finest) grade of detail it could resolve. Assuming identical sensor pixel dimensions and framing, yes, a FF sensor would resolve the same fine details larger, and I would expect the outcome to be roughly the same (except for DOF.) | |
| Jul 9, 2012 at 21:45 | comment | added | Matt Grum | @jrista I'm not sure what you mean when you say the full frame image wont have as much fine detail, if you have the same number of pixels and similar framing then your full frame image should contain more fine detail in the centre. Resolution in terms of lp/ph is one of many measures of sharpness, MTF50 being a slightly better one. | |
| Jul 9, 2012 at 17:01 | comment | added | jrista | +1. It should be noted just to be factual that lp/mm and l/ph are not directly translatable measures of resolution. Currently, no DSLR on the market offers 200lp/mm. Nikon's new 24.2mp sensors offer a little less than 129lp/mm spatial resolution, while most full-frame sensors offer less (sometimes considerably less) than 100lp/mm. A larger sensor can only offer better sharpness due to greater l/ph if the subject is framed identically, but that sharp image will usually not contain as much fine detail. A 24mp APS-C sensor will capture as much fine detail as a 57mp FF sensor. | |
| Jul 9, 2012 at 13:40 | history | edited | Matt Grum | CC BY-SA 3.0 |
added 339 characters in body
|
| Jul 9, 2012 at 13:28 | history | edited | Matt Grum | CC BY-SA 3.0 |
added 439 characters in body
|
| Jul 9, 2012 at 13:22 | history | edited | Matt Grum | CC BY-SA 3.0 |
added 1503 characters in body
|
| Jul 9, 2012 at 11:04 | history | edited | Matt Grum | CC BY-SA 3.0 |
added 51 characters in body
|
| Jul 9, 2012 at 10:55 | history | edited | Matt Grum | CC BY-SA 3.0 |
added 273 characters in body
|
| Jul 9, 2012 at 10:48 | history | answered | Matt Grum | CC BY-SA 3.0 |