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Is resolution ever preserved shooting hand-held compared to tripodmounting?



 
 
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  #1  
Old May 16th 15, 04:03 PM posted to rec.photo.digital
Alan Browne
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Posts: 12,640
Default Is resolution ever preserved shooting hand-held compared to tripodmounting?

On 2015-05-15 21:15, RichA wrote:
I suggested to Dpreview to test the new 50mp Canon hand-held and on a
tripod to see if there is any resolution loss hand-held. They said
they'd do it. They're going to use a production model because the
ones they have now are pre-production. Pixel density on the Canon
(and the m4/3rds gear) is high, each pixel measuring smaller than a
red blood cell so any motion by the hand not compensated for could
theoretically reduce resolution. Be interesting to see under what
conditions resolution diminishes.


In normal circumstances hand holding will reduce resolution. Even using
the rule-of-thumb of shutter speed faster than FL is only valid for
smallish prints.

If one could attain really high shutter speeds (1/16000) then it would
not affect registration as much, but noise would tend to be higher
reducing the resolution benefit.

All that said, hand held shots at 1/400 - 1/800 in good lighting tend to
look really sharp (given adequate hand holding technique and a smooth
release).

Combining a high speed flash (high power TTL flash at low power output)
with low ambient lighting and a high-ish shutter speed (1/250 or better
if the camera will sync there) will also hide movement somewhat.

But in the end, nothing beats a tripod with mirror lockup (or a
non-reflex camera).
  #2  
Old May 16th 15, 09:45 PM posted to rec.photo.digital
Me
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Posts: 470
Default Is resolution ever preserved shooting hand-held compared to tripodmounting?

On 17/05/2015 3:03 a.m., Alan Browne wrote:


All that said, hand held shots at 1/400 - 1/800 in good lighting tend to
look really sharp (given adequate hand holding technique and a smooth
release).


Such figures aren't much use unless focal length is also considered.


  #3  
Old May 17th 15, 06:05 AM posted to rec.photo.digital
android
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Posts: 3,854
Default Is resolution ever preserved shooting hand-held compared to tripod mounting?

In article ,
Alan Browne wrote:

On 2015-05-15 21:15, RichA wrote:
I suggested to Dpreview to test the new 50mp Canon hand-held and on a
tripod to see if there is any resolution loss hand-held. They said
they'd do it. They're going to use a production model because the
ones they have now are pre-production. Pixel density on the Canon
(and the m4/3rds gear) is high, each pixel measuring smaller than a
red blood cell so any motion by the hand not compensated for could
theoretically reduce resolution. Be interesting to see under what
conditions resolution diminishes.


In normal circumstances hand holding will reduce resolution. Even using
the rule-of-thumb of shutter speed faster than FL is only valid for
smallish prints.

If one could attain really high shutter speeds (1/16000) then it would
not affect registration as much, but noise would tend to be higher
reducing the resolution benefit.

All that said, hand held shots at 1/400 - 1/800 in good lighting tend to
look really sharp (given adequate hand holding technique and a smooth
release).

Combining a high speed flash (high power TTL flash at low power output)
with low ambient lighting and a high-ish shutter speed (1/250 or better
if the camera will sync there) will also hide movement somewhat.

But in the end, nothing beats a tripod with mirror lockup (or a
non-reflex camera).


Yup... Mirrorless with electronic shutters would be the way to go. Put
your iPhone on some legs..
--
teleportation kills
  #4  
Old May 18th 15, 06:33 PM posted to rec.photo.digital
Alan Browne
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Posts: 12,640
Default Is resolution ever preserved shooting hand-held compared to tripodmounting?

On 2015-05-16 16:45, Me wrote:
On 17/05/2015 3:03 a.m., Alan Browne wrote:


All that said, hand held shots at 1/400 - 1/800 in good lighting tend to
look really sharp (given adequate hand holding technique and a smooth
release).


Such figures aren't much use unless focal length is also considered.



Stated earlier along with the clarification that the focal length rule
of thumb really applies to smallish prints. I'd expect, in the whole,
that that would be clear enough to most without having to re-qualify
everything.

  #5  
Old May 18th 15, 06:38 PM posted to rec.photo.digital
Alan Browne
external usenet poster
 
Posts: 12,640
Default Is resolution ever preserved shooting hand-held compared to tripodmounting?

On 2015-05-17 17:27, RichA wrote:
On Saturday, 16 May 2015 11:03:43 UTC-4, Alan Browne wrote:
On 2015-05-15 21:15, RichA wrote:
I suggested to Dpreview to test the new 50mp Canon hand-held and on a
tripod to see if there is any resolution loss hand-held. They said
they'd do it. They're going to use a production model because the
ones they have now are pre-production. Pixel density on the Canon
(and the m4/3rds gear) is high, each pixel measuring smaller than a
red blood cell so any motion by the hand not compensated for could
theoretically reduce resolution. Be interesting to see under what
conditions resolution diminishes.


In normal circumstances hand holding will reduce resolution. Even using
the rule-of-thumb of shutter speed faster than FL is only valid for
smallish prints.

If one could attain really high shutter speeds (1/16000) then it would
not affect registration as much, but noise would tend to be higher
reducing the resolution benefit.

All that said, hand held shots at 1/400 - 1/800 in good lighting tend to
look really sharp (given adequate hand holding technique and a smooth
release).

Combining a high speed flash (high power TTL flash at low power output)
with low ambient lighting and a high-ish shutter speed (1/250 or better
if the camera will sync there) will also hide movement somewhat.

But in the end, nothing beats a tripod with mirror lockup (or a
non-reflex camera).


Flashes are different. A controlled flash can fire at 1/50,000 second which will freeze anything, more or less.


The issue isn't so much the flash but exposure due to ambient light
blurring the overall image.
 




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