Lab 7

1. your camera (manufacturer & model)

- My camera is a Canon EOS rebel T6

2. the sensor size (in mm: ? x ?), maximum megapixel rating, sensor type (eg “APS-H”)

- APS-C (22.3 x 14.9 mm) 

3. lenses you own & can use on your video recording-capable camera 

    — in 35mm equivalent focal length range, associated widest apertures

answer: kit lense 18 x 55 mm >

50 mm telephoto lense > 75 mm full frame

18 x 55 mm kit lense > 28.8 mm x 88 mm full frame

4. biggest memory card you own in terms of capacity (in GB), class (eg “class 10”), 

   and card speed (eg. x 133). 

   If it’s an SD type card, which class is it?  (e.g.. class 10)

   Read the following article from B&H PhotoVideo which indicates all relevant aspects of cards:
   Memory Cards Explained

   Which class of card do you need for shooting video? What does your SD card classification 

   mean in terms of writing speed: is it fast enough to be shooting video?

answers: 32 GB, Class 10, card speed: 1

The class of card that I need for shooting video is SDXC class.  My SD card is not fast enough to shoot video.  

               

5. How many minutes of video capacity does your biggest memory card have shooting at both the

     highest & lowest resolution capture settings?

     Also, does your camera have a limit on the amount of video shooting time?

     What is the technical reason for limiting single shot video shooting time?

     State your answers as memory card size / recording quality (resolution & mode) & maximum minutes

     ( eg. 8GB memory card / 1280 x 720p [SD mode] yields 20 min. of video)

     (NB. you will probably have to test this out by turning on your camera with your empty reformatted

     memory card installed, the display set to indicate total frames remaining/total video time available,

     video quality set to highest and then lowest resolutions)

answers:

- highest resolution no. of minutes: 1920 x 1080/1h28 minutes

- lowest resolution no. of minutes: 640 x 480/5h40 minutes

6. maximum file size per clip        

answer: 340 MB/min

8. format of movie files created (eg. QuickTime Motion JPEG, AVCHD, MPEG4, etc.)

    (... there’ll probably be more than one, depending on camera and resolution sizes & modes) 

answers: MOV, MPEG-4 (MP4/M4V), MXF, AVI
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9. which video output resolutions does your camera produce? 

     try to include all of the following info for each level of video resolution your camera produces:

- (sample answer might be:     720p / 1280 x 720 pixels/ SD / 4:3 / 30fps)

               answers:

-  (30p/25p/24p) /1920 x 1080 pixels/ SD / 16 : 9 / 30fps

10. looking at the above resolution dimensions available, are they using the same aspect ratio or not? 
      (eg. 800 x 600 is a 4:3 aspect ratio while 1920 x 1080 is a 16:9 aspect ratio). 
      What are the differing aspect ratios for each of your camera's video format resolutions?

answers: FHD and HD use the same aspect ratio of 16:9.  For SD format, the aspect ratio is 4:3.

11. shutter speed range your camera can record video in: does your camera permit you to set shutter

      speed when recording video? (Can you in fact set manual setting for video shooting?) Whether it

      does or not, what shutter speeds can you set on your camera for shooting video?

answers:

- My camera doesn't allow me to shot in manual.  The shutter speed is 1/30 seconds.

12. aperture: does your camera permit you to set the aperture when recording video?

             answers:

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13. shutter speed & aperture restrictions — answer this only if your camera does not permit you to 

       choose manual video shooting settings.

       If your camera doesn’t have manual setting capabilities, what other camera setting can you use to

       control exposure then?

  answers:

-The only camera setting that I can use is video mode and I can't adjust the exposure on it.  

14. focus: how does your camera focus when shooting video? Does it permit you to manually focus

       or are you left with autofocus only?

eg. — The most important thing to know about the Nikon D5000’s video controls is the fact that the camera cannot 

autofocus while video is being recorded. You can autofocus the image before recording begins (by pressing the shutter 
button halfway down, just like you do with still images), but once you start recording you must manually focus 
everything..When you try to autofocus while recording, the camera lens moves and changes exposure just as if 
you’re autofocusing a still image.
answers:
-It permits me to manually focus.  

15. your camera records video at what data rate (expressed in MB/sec. or mbps)

answer: 5.6 mbps
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16. specific and particular settings recommended for your camera model — the best way to 

      do this is to look at the camera reviews for your model on preview.com and/or imaging resource.com

      and read their review section on the video functioning (often listed as “video” or “movie” review section). 
      You can also research this in a Google search —eg. at least one very popular camera (hint: 5D) has

      suggested settings for ISO to obtain the least noise in video mode.

answers: When it first came out, the sensor had a problem, it had a lot of white dots on the sensor so they had to do a recall and when it was fixed they'd give it back to you.  

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