Tiny but Mighty Blog
Tuesday 17 April 2018
Tuesday 27 March 2018
1. your camera (manufacturer & model)
answer:
- Canon EOS Rebel T6i
2. the sensor size (in mm: ? x ?), maximum megapixel rating, sensor type (eg “APS-H”)
answer:
- APS-C (22.3mm x 14.9mm)
- APS-C (22.3mm x 14.9mm)
3. lenses you own & can use on your video recording-capable camera
— in 35mm equivalent focal length range, associated widest apertures
answer:
- 18-55mm lens 5.6, 50mm 1.8
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
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:
- SanDisk 32GB Class 10, 80MB/s
- For shooting video you need at least a Class 6 SD Card.
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: 32 GB Memory Card / 1920x1080 29.97fps (does not specify)
- lowest resolution no. of minutes: 32 GB Memory Card / 640x480 29.97fps (does not specify)
6. maximum file size per clip
answer:
-4GB
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:
-MP4 Format
-
-MP4 Format
-
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:
- 1920 x 1080
-
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?
(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:
-
-
-
-
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:
-1/4000 sec - 30 sec
12. aperture: does your camera permit you to set the aperture when recording video?
answers:
- yes.
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:
-
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:
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:
-Auto focus and manual focus
15. your camera records video at what data rate (expressed in MB/sec. or mbps)
answer:
-3.6MB/sec. (216 MB/min)
-3.6MB/sec. (216 MB/min)
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
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:
-
-
-
Tuesday 20 March 2018
Wednesday 28 February 2018
Histograms
high key scene
Most of the pixels fall to the right. there are no pixels that are clipping (that won't print with detail.)
Low Key Scene
Most of the pixels fall to the left of the histogram. There are no pixels that won't print with detail.
Varied Tones
Most of the pixels fall in the middle of the image but leans more towards the left side. There no pixels that won't print with detail. This histogram shows the most dynamic range.
Tuesday 20 February 2018
Lens Depth Distortion
- what happens to the width of the background when you go from WA to tele?
In Wide Angle the width is broader and on telephoto the wide is more compressed.
- what happens to the distance between the background & subject?
In wide angle the subject is further from the background and in telephoto the subject appears closer to the
- what happens to the subjects themselves in terms of expansion & contraction (for
the width) as well as compaction and enlargement (for front to back)?
In wide angle the subject(s) expand and the width is very wide. From front to back the subject enlarges and appears bigger. In telephoto the width is more compressed and the subject(s) compact and appear smaller.
Scenario: imagine that you're shooting a model (full body) against a seamless. Your
framing of the model is what you want but the edges (and beyond) of the seamless are
visible in your frame. You don't want to move the model back towards the seamless and
you don't want to have to retouch out the seamless edges. Applying what you learned
from this exercise today, what's the solution using just your camera & lens?
You (the photographer) would back up and zoom in (or use a telephoto lens.)
Wide Angle
-standing 5 meters from subject
-back legs of stool are noticeable
-table distorted
-back seamless is noticeable and appears small
-back wall distorted
-looks more 3-dimentionsal
Telephoto
- stool looks more 2-dimentional
- seamless fills majority of frame
- seamless is much bigger
- hat appears slightly bigger
- table seems narrower
Wide Angle
18mm (equivalent to 28mm)
- model appears a bit distorted
- seamless is noticeable
- model look farther from the seamless
Telephoto
55mm (equivalent to 80mm)
- model looks more compressed
- sides of seamless are not in frame
- model appears closer to the seamless
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