GB Sports Photographer & The Panasonic LUMIX S1

50 Mega pixels.


20 Apr 2015 11:07AM
Most of the camera manufacturers will be producing 50 mega pixels as the norm, by the end of the year.
This creates a problem with lenses which are not up to it. I own seven lenses and have been testing them on a 36 mega pixel camera.
I have had to bite the bullet and replace some with newer more modern versions. My Minolta 400 F4.5 lens was only lens more than 5 years old that would cope with loads of mega pixels.
The second adverse effect of high mega pixels, is because the greatly improved detail and sharpness. any flaw in the technical ability of the photographer is greatly exaggerated. Some reviewers ( regardless of the manufacture ) blame their tool and call their short comings things like shutter judder.
I have used 36 MP with lenses from 19mm to 400mm at all F stops from F 1.8 to F32 and have failed to produce shutter shake.

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mikehit 10 8.0k 13 United Kingdom
20 Apr 2015 11:15AM

Quote:any flaw in the technical ability of the photographer is greatly exaggerated.


Only if you look at the images at 100% - with higher megapixel cameras that mean you are looking at a larger image which will make things shake more obvious. We have reached the point that if you view them at the same size the amount of shake (as a linear measurement) will be identical so you will get the same amount of 'blur'.
Which sort of brings us to one aspect of higher MPs that many overlook - the higher MP camera is only worth the money if you have a technique that enables you to take advantage of it. Many (most?) people don't and are buying the higher MP because they like the idea of owning all those little sensels.
But the higher MP sensors also bring with them advantages in dynamic range and noise management so resolution is not always the be-all-and-end-all for the photographer
ikett 9 545 England
20 Apr 2015 12:23PM
There seems to be lots of opinions on this topic, I agree with mikehit, but if you take Nikons 24 mega pixel DX senors and scale them up to full frame they equate to around 54 mega pixels and I can't remember many DX users moaning about pixel density.
Just a thought!
keithh 15 25.5k 33 Wallis And Futuna
20 Apr 2015 12:42PM
They were going on about this very thing when Canon released the 1ds mkI in 2002.
mikehit 10 8.0k 13 United Kingdom
20 Apr 2015 12:46PM
One additional thought: If you are not printing large (or not cropping heavily which is pretty much the same thing) I believe we are probably already beyond the point where the human visual system can resolve the detail. So high-MP cameras are now entering the territory of uber-specialised tools.
franken Plus
17 5.0k 4 United Kingdom
20 Apr 2015 1:48PM
Fine if you don't crop a lot and produce very large images

If you don't, then there's little to be gained other than requiring more capacity to store the files.
User_Removed 4 1.0k United Kingdom
20 Apr 2015 4:05PM
I'm happy with my 16mp D4s thank you
IshanPathak 5 202 12 India
20 Apr 2015 6:24PM

Quote:This creates a problem with lenses which are not up to it.


ok, i don't own a dslr so i don't know everything about lens and stuff. Is there any relation between lens and megapixel?
mikehit 10 8.0k 13 United Kingdom
20 Apr 2015 8:24PM

Quote:
Quote:This creates a problem with lenses which are not up to it.


ok, i don't own a dslr so i don't know everything about lens and stuff. Is there any relation between lens and megapixel?


No.

A poor lens will deliver a blurred image that not even a gazilion pixels will resolve.
A good quality lens will delivery an image that will look great on a 2MP image printed at A4, but pretty poor at 1 metre across viewed from the same distance
User_Removed 4 1.0k United Kingdom
20 Apr 2015 8:35PM
Simple answer always buy good lenses, duh...................
mikehit 10 8.0k 13 United Kingdom
20 Apr 2015 9:44PM
If you can afford them, duh................
LenShepherd 11 4.0k United Kingdom
20 Apr 2015 9:46PM
There is a lot of confusion on this topic.
The Laws of Optics clarify if you increase either sensor resolution or lens resolution you get more (the bit we are interested in) image resolution - provided we enlarge the file to beyond the relatively low resolution of the human eye and view at about 15 inches.
Put another way you can get more image resolution with a "so-so" lens if you use it on a 50 MP body rather than a 21 MP body, though not as much image resolution as putting 50 MP on a top quality lens.
If you are going to print no bigger than 10x8 based on 100 ISO, 12 MP and a so-so lens will normally put more resolution in an image than the eye can resolve Smile
If you do not print big (and view close) you do not need (as distinct from perhaps wanting) 50 MP.
If you do not print big and view close then technique is not so important - though not producing the occasional A2 print makes 36 MP or the due soon 50 MP a "want" rather than a "need".
All other things being equal (which they never are in digital) 50 MP at around 100 ISO with a good lens at optimum aperture should increase image resolution by a useful about 8-10% compared to 36 MP.
I presume Nikon's next increase will be 54 MP as Sony have been making 54 MP medium format sensors for over a year.
Picking up on one of your points whether 18 MP is "too much" is irrelevant as it is difficult to buy a new DSLR with less than 18 MP, and perhaps soon less than 24 MP.
tpfkapm 8 266 United Kingdom
20 Apr 2015 9:51PM
the only definite thing is you will need a bigger hard drive to store your pics-
IshanPathak 5 202 12 India
21 Apr 2015 4:17AM

Quote: at 1 metre across viewed from the same distance


I didn't get this...


Quote:Put another way you can get more image resolution with a "so-so" lens if you use it on a 50 MP body rather than a 21 MP body, though not as much image resolution as putting 50 MP on a top quality lens.


So basically, if i put any cheap quality lens on a 50 MP camera, the quality of the image will be better than if it was on a 24 MP camera.

There was one more question related to megapixels... Is there any difference in sensor size of a 16 MP compact and a 16 MP DSLR?
keithh 15 25.5k 33 Wallis And Futuna
21 Apr 2015 6:09AM
14570_1429592959.jpg



Very much so.


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