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Author Topic: The Megapixels are Coming [CR1]  (Read 41063 times)

itsnotmeyouknow

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Re: The Megapixels are Coming [CR1]
« Reply #105 on: April 03, 2012, 06:24:47 AM »
(especially without a low pass filter like the D800).


The D800 does have a low pass filter.  It's the D800e that doesn't.  The medium format Pentax 645D also doesn't have a low pass filter. 

I admire the science in this part of the thread - quite baffles me and I'm no dunce.  The science of pixel peeping is my first impression.  I'll leave viewing photographs to the optimum distance from the appropriate media thank you, that is what art is about.  Do you look at a Turner painting with your head against the painting and criticise the brush strokes?  I thought not.  That's the problem with fora such as these.  I think we run the risk of overexamining things and missing what's actually important

« Last Edit: April 03, 2012, 06:26:45 AM by itsnotmeyouknow »

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Re: The Megapixels are Coming [CR1]
« Reply #105 on: April 03, 2012, 06:24:47 AM »

Panurus

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Re: The Megapixels are Coming [CR1]
« Reply #106 on: April 03, 2012, 07:08:21 AM »
A lot of people knows that Light is a transverse, electromagnetic wave that can be seen by humans. The wave nature of light was first illustrated through experiments on diffraction and interference.
But who have see samples that show this fact.

The post is : The megapixels are coming.

The last time that I had studied this subject, I had found this:




http://www.zeiss.com/C12567A8003B8B6F/EmbedTitelIntern/CLN_31_en/$File/CLN31_English.pdf

http://www.zeiss.com/C12567A8003B8B6F/EmbedTitelIntern/CLN_31_MTF_en/$File/CLN_MTF_Kurven_2_en.pdf


http://www.zeiss.com/C12567A8003B8B6F/GraphikTitelIntern/CLN31MTF-KurvenBild1/$File/Image_01.jpg
http://www.zeiss.com/C12567A8003B8B6F/GraphikTitelIntern/CLN31MTF-KurvenBild2/$File/Image_02.jpg
http://www.zeiss.com/C12567A8003B8B6F/GraphikTitelIntern/CLN31MTF-KurvenBild3/$File/Image_03.jpg
http://www.zeiss.com/C12567A8003B8B6F/GraphikTitelIntern/CLN31MTF-KurvenBild4/$File/Bild_04.jpg
http://www.zeiss.com/C12567A8003B8B6F/GraphikTitelIntern/CLN31MTF-KurvenBild5/$File/Bild_05.jpg
http://www.zeiss.com/C12567A8003B8B6F/GraphikTitelIntern/CLN31MTF-KurvenBild6/$File/Bild_06.jpg
http://www.zeiss.com/C12567A8003B8B6F/GraphikTitelIntern/CLN31MTF-KurvenBild7/$File/Bild_07.jpg
http://www.zeiss.com/C12567A8003B8B6F/GraphikTitelIntern/CLN31MTF-KurvenBild8/$File/Bild_08.jpg
http://www.zeiss.com/C12567A8003B8B6F/GraphikTitelIntern/CLN31MTF-KurvenBild9/$File/Bild_09.jpg
http://www.zeiss.com/C12567A8003B8B6F/GraphikTitelIntern/CLN31MTF-KurvenBild10/$File/Bild_10.jpg
http://www.zeiss.com/C12567A8003B8B6F/GraphikTitelIntern/CLN31MTF-KurvenBild11/$File/Bild_11.jpg
http://www.zeiss.com/C12567A8003B8B6F/GraphikTitelIntern/CLN31MTF-KurvenBild12/$File/Bild_12.jpg
http://www.zeiss.com/C12567A8003B8B6F/GraphikTitelIntern/CLN31MTF-KurvenBild13/$File/Bild_13.jpg
http://www.zeiss.com/C12567A8003B8B6F/GraphikTitelIntern/CLN31MTF-KurvenBild14/$File/Bild_14.jpg


If you want to go quickly, then you will look at the crop  13.jpg.
left original                   center: 24 Mpix               right:   12 Mpix

If you want to understand more than you have to read the documents.

After you understand why Canon declare:
"The images produced with the EOS-1D X camera’s new sensor are so clean that files can easily be up-sized if necessary for even the most demanding high-resolution commercial applications."

My 2 words:  When white = 100%(RVB 255) and black = 0% (RVB 0)

FTM 50% is  a contrast =  75% - 25 % / ( 75% + 25 % )

If your optics have a contrast of:                                           50    % @  80 lp/mm:
The contrast will be  (87.5 - 12.5) / (87.5 + 12.5) =              75     % @ 40 lp/mm
The contrast will be  (93.75 - 6.25) / (93.75 + 6.25) =         87.5   % @ 20 lp/mm
The contrast will be  (96.875 - 3.125) / (96.875 - 3.125) = 93.75  % @ 10 lp/mm

 Is far from :   100% - 0 % / ( 100% + 0 % ) 

So when the little lines, on my subject, are white and black. on my captor they arrive black washed and white dirty. So the real questions could it be?:

howmunch pixels want I to see the transistion from black washed towards white dirty?

Some days, I say 1DIV is not enough, some days 1DX is enough. Some of my friends think 7D. ;)


Marsu42

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Re: The Megapixels are Coming [CR1]
« Reply #107 on: April 03, 2012, 09:41:38 AM »
but let's face it, 36MP would be nice in SOME situations for editing and potential magazine submissions where they like to crop heavily sometimes.

Isn't there an option on the Nikon to get smaller raw files, too? Esp. since the dr and noise of the 36mp nikon sensor is like the 21mp Canon one...

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Re: The Megapixels are Coming [CR1]
« Reply #107 on: April 03, 2012, 09:41:38 AM »