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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 18 Mar 2013 (Monday) 00:13
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Why does LV has better detail than actural picture?

 
dalplex
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Mar 18, 2013 00:13 |  #1

These two screen shots were taken from 7D.

LV has more detail and less noise compare with picture.

My understanding is that the information from LV with digital zoom can not be captured by picture.

Is it due to LV is a video?

Please help.

Thanks


IMAGE: http://img580.imageshack.us/img580/8428/43011763.jpg

IMAGE: http://img59.imageshack.us/img59/7901/11691395.jpg

30D, 7D, 5D III. D200, D700, D800E.
AF-S 14-24 /2.8G, 200/2G VR2. 16-35 /2.8 L II, 50 /1.4, MP-E 65/2.8, 85 /1.2 L II, 100 /2.8 L, 135 /2 L, 180 /3.5 L, 70-200 /2.8 L IS II, 1.4x III. 430 EX II, YN 568EX, 161MK2B, WH 200 II.

  
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drzenitram
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Mar 18, 2013 00:14 |  #2

looks like a higher ISO in the bottom image


| Bodies - 5D Mark II, T2i | Lenses - Helios 44-2, Sigma 35mm 1.4, Sigma 85 1.4, Sigma 70-200 2.8 OS, Tamron SP AF 1.4x TC | Lights - 430ex ii x2, Random 3rd party strobes

  
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dalplex
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Mar 18, 2013 00:17 |  #3

But i did not change anything.
One is LV with zoom, second is testing shot.


30D, 7D, 5D III. D200, D700, D800E.
AF-S 14-24 /2.8G, 200/2G VR2. 16-35 /2.8 L II, 50 /1.4, MP-E 65/2.8, 85 /1.2 L II, 100 /2.8 L, 135 /2 L, 180 /3.5 L, 70-200 /2.8 L IS II, 1.4x III. 430 EX II, YN 568EX, 161MK2B, WH 200 II.

  
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hollis_f
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Mar 18, 2013 06:39 |  #4

What format (raw, jpeg, large, small, fine etc.) was used for the test shot?


Frank Hollis - Retired mass spectroscopist
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Foggiest
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Mar 18, 2013 06:58 |  #5

I thought the camera generated a jpeg to display on the screen (you would be seeing the artifice of the jpeg engine) ?




  
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hollis_f
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Mar 18, 2013 07:21 |  #6

Foggiest wrote in post #15727367 (external link)
I thought the camera generated a jpeg to display on the screen (you would be seeing the artifice of the jpeg engine) ?

Yes, that what I suspected. The 7D seems to use fairly high compression for the jpeg image that it embeds in the raw data.


Frank Hollis - Retired mass spectroscopist
Give a man a fish and he'll eat for a day. Teach a man to fish and he'll complain about the withdrawal of his free fish entitlement.
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joeburke
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Mar 18, 2013 15:31 |  #7

By saying LV you mean the pictures that you took, you're looking at them on the LCD, right?

Is the second shot raw? On the lcd you're seeing a jpeg with noise reduction added.


joe.

  
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dalplex
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Mar 19, 2013 02:20 |  #8

okay.

I will take another shot and save to raw.

but, what would it be for the LV on LCD?


30D, 7D, 5D III. D200, D700, D800E.
AF-S 14-24 /2.8G, 200/2G VR2. 16-35 /2.8 L II, 50 /1.4, MP-E 65/2.8, 85 /1.2 L II, 100 /2.8 L, 135 /2 L, 180 /3.5 L, 70-200 /2.8 L IS II, 1.4x III. 430 EX II, YN 568EX, 161MK2B, WH 200 II.

  
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dalplex
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Mar 19, 2013 12:42 |  #9

Another try. please be advised that these pictures both captured from screen shot was pasted to paint and saved in jpg.

So much detail with even the printing mesh on the upper right corner.

IMAGE: http://img195.imageshack.us/img195/4420/lv3r.jpg

Then, very dim without touching anything, in cr2 format, opened by dpp then screen shot.

Would be little bit better if turn off noise reduction but overall expected detail would be masked by noise.

IMAGE: http://img13.imageshack.us/img13/483/cr2s.jpg

30D, 7D, 5D III. D200, D700, D800E.
AF-S 14-24 /2.8G, 200/2G VR2. 16-35 /2.8 L II, 50 /1.4, MP-E 65/2.8, 85 /1.2 L II, 100 /2.8 L, 135 /2 L, 180 /3.5 L, 70-200 /2.8 L IS II, 1.4x III. 430 EX II, YN 568EX, 161MK2B, WH 200 II.

  
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NPuter
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Mar 20, 2013 08:15 |  #10

I may be completely wrong here, but the exposure you see though live view probably will differ from the exposure you get when you actually take the picture - even with exposure simulation turned on.


NPuter | flickr (external link) | instagram (external link)
5D Mark IV | 7D
16-35 f/2.8L II | 16-35 f/2.8L III | 24-70 f/2.8L II | 70-200 f/2.8L IS II | Sigma 30 f/1.4 | Sigma 50 f/1.4

Feedback

  
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bpark42
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Mar 20, 2013 10:53 |  #11

Do you have exposure simulation enabled for live view? If not, you cannot expect the taken exposure to match what you saw in live view.

Aside from the darker exposure in the raw example, you also need to apply some sharpening. The previewed live view image is sharpened, and the raw file needs to be as well.

Finally, what were your exposure settings? ISO, aperture, shutter speed? All of these things can result in the actual photo showing differences from the preview you see in live view.




  
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Why does LV has better detail than actural picture?
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