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Having issues with quality on a T2i

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blatt
Posts: 5584 - Karma: 3,097
If you watch my 2 edits, There's a very major difference in quality in my opinion.





I dont know what's causing the change in quality. In one edit I did remove magic lantern but I dont think that changed quality. Other than that I used the same system and If I'm correct both were shot in raw format with 1280x720 resolution. Other than that I have no idea what might have altered the quality.

If anyone has some ideas on what caused this change in quality, I'd be much interested to hear about them. Maybe I'm just overthinking to though. +k for advice
May 17 2011 1:09AM
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SassySloth
Posts: 3753 - Karma: 2,095
Were you using the same lens both times??

also one video was a grey cloudy day and the other was blue bird.
May 17 2011 7:20AM
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Brock.
Posts: 5698 - Karma: 1,332
wut.
May 17 2011 9:37AM
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SassySloth
Posts: 3753 - Karma: 2,095
lol i thought the same thing.

i know when taking photos you have a RAW setting but not video :P
May 17 2011 9:52AM
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alexat955
Posts: 2732 - Karma: 112
obviously one was overcast... were you using the same picture style?
May 17 2011 9:55AM
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blatt
Posts: 5584 - Karma: 3,097
Yes and same lens
May 17 2011 10:04AM
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WillStart
Posts: 3955 - Karma: 3,192
i have heard people refer to the H.264 videos that come out of the camera as 'raw.' not in the sense that they are RAW but in the sense that they are unaltered and haven't been through the prores process or anything
May 17 2011 2:40PM
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B.Snow
Posts: 1859 - Karma: 92
Did your export settings change?
May 17 2011 3:21PM
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Brock.
Posts: 5698 - Karma: 1,332
If its any conciliation, there was no major difference that I could make out...
May 17 2011 3:34PM
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kootenayklaus
Posts: 3914 - Karma: 2,179
This, other than the different lighting circumstances, I couldn't make out anything.
May 17 2011 3:37PM
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TWoods
Posts: 10014 - Karma: 8,386
If you're stopping down your lens a ton for the sunny day, you will lose sharpness from the lens due to diffraction.

What specific quality issues are you looking at? It really could have been a ton of things in your workflow that changed it.
May 17 2011 4:02PM
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s.erickson
Posts: 504 - Karma: 992
you can shoot in RAW for video too from what i can tell
May 17 2011 5:17PM
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kalum.ko
Posts: 585 - Karma: 1,672
I don't think so.

Correct me if Im wrong but wouldn't raw be 18k? I think I'm wrong, but would raw video be uncompressed and basically use the entire sensor. Basically the quality of photos but at what ever frame rate?

Or is RAW just no compression.


May 17 2011 5:39PM
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blatt
Posts: 5584 - Karma: 3,097
First one was hdv 720 and the 2nd one was h.264. which should be the other way around.
May 17 2011 6:29PM
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blatt
Posts: 5584 - Karma: 3,097
sorry for dub post but I had my aperture pretty high up on the sunny day if I remember correctly. and quality-wise Im just looking at the definition. the images are alot more crisp in the first edit rather than the second.

Would it help for me to convert to prores422 in mpeg streamclip before editing?
May 17 2011 6:51PM
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[~_~]
Posts: 20239 - Karma: 1,273
RAW means uncompressed in-camera, meaning raw sensor data. DSLRs definitely don't shoot RAW, in fact their shitty codec is quite the opposite.
May 17 2011 7:10PM
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[~_~]
Posts: 20239 - Karma: 1,273
You should always export h.264. And converting to ProRes 422 will actually harm your footage, because it will process the footage with color space which exceeds DSLR footage, causing banding. At most you should convert to ProRes LT.

Lenses are their sharpest around the f/5.6 mark, so if you stopped down to f/16 in sunlight, your images are going to be softer. The best thing you can do in that weather is shoot with a polarizer to bring out snow detail and color, and aim for around f/5.6. Use an ND if needed.
May 17 2011 7:14PM
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kalum.ko
Posts: 585 - Karma: 1,672
So if a t2i was somehow able to shoot raw, Itd be uncompressed 18k?
May 17 2011 7:14PM
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[~_~]
Posts: 20239 - Karma: 1,273
One more thing- if you don't crush your blacks, you will be able to stop down a little more, which will give you more snow and shadow detail.
May 17 2011 7:15PM
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Brock.
Posts: 5698 - Karma: 1,332
'Raw' video format on a digital platform, in the most real sense, can only be achieved through prosumer cameras like RED ect.

If you use a canon HDSLR you can actually pull good results from the shitty codec if you use 'Ultra flat' picture styles along with some good noise reduction software and grading.
May 17 2011 10:13PM
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